HELL'S GATE.

David Weber.

& Linda Evans.

For Sharon, always.

Because with her on my side, I can face the multiverse head-on.

For David & Aubrey, who keep me smiling, and for Bob, always, for his endless technical assistance.

I couldn't whiff or trace without him.

Chapter One.

The tall noncom could have stepped straight out of a recruiting poster. His fair hair and height were a legacy from his North Shaloman ancestors, but he was far, far away-a universe away-from their steep cliffs and icy fjords. His jungle camo fatigues were starched and ironed to razor-sharp creases as he stood on the crude, muddy landing ground with his back to the looming hole of the portal. His immaculate uniform looked almost as bizarrely out of place against the backdrop of the hacked-out jungle clearing as the autumn-kissed red and gold of the forest giants beyond the portal, and he seemed impervious to the swamp-spawned insects zinging about his ears. He wore the shoulder patch of the Second Andaran Temporal Scouts, and the traces of gray at his temples went perfectly with the experience lines etched into his hard, bronzed face.

He gazed up into the painfully bright afternoon sky, blue-gray eyes slitted against the westering sun, with his helmet tucked into the crook of his left elbow and his right thumb hooked into the leather sling of the dragoon arbalest slung over his shoulder. He'd been standing there in the blistering heat for the better part of half an hour, yet he seemed unaware of it. In fact, he didn't even seem to be perspiring, although that had to be an illusion.

He also seemed prepared to stand there for the next week or so, if that was what it took. But then, finally, a black dot appeared against the cloudless blue, and his nostrils flared as he inhaled in satisfaction.

He watched the dot sweep steadily closer, losing altitude as it came, then lifted his helmet and settled it onto his head. He bent his neck, shielding his eyes with his left hand as the dragon back-winged in to a landing. Bits of debris flew on the sudden wind generated by the mighty beast's iridescent-scaled wings, and the noncom waited until the last twigs had pattered back to the ground before he lowered his hand and straightened once more.

The dragon's arrival was a sign of just how inaccessible this forward post actually was. In fact, it was just over seven hundred and twenty miles from the coastal base, in what would have been the swamps of the Kingdom of Farshal in northeastern Hilmar back home. Those were some pretty inhospitable miles, and the mud here was just as gluey as the genuine Hilmaran article, so aerial transport was the only real practical way in at the moment. The noncom himself had arrived back at the post via the regular transport dragon flight less than forty-eight hours earlier, and as he'd surveyed the muck below, he'd been struck by just how miserable it would have been to slog through it on foot. How anyone was going to properly exploit a portal in the middle of this godforsaken swamp was more than he could say, but he didn't doubt that the Union Trans-Temporal Transit Authority would find a way. The UTTTA had the best engineers in the universe-in several universes, for that matter-and plenty of experience with portals in terrain even less prepossessing than this.

Probably less prepossessing, anyway.

The dragon went obediently to its knees at the urging of its pilot, and a single passenger swung down the boarding harness strapped about the beast's shoulders. The newcomer was dark-haired, dark-eyed, and even taller than the noncom, although much younger, and each point of his collar bore the single silver shield of a commander of one hundred. Like the noncom, he wore the shoulder flash of the 2nd ATS, and the name "Olderhan, Jasak" was stenciled above his breast pocket. He said something to the dragon's pilot, then strode quickly across the mucky ground towards the waiting one-man welcoming committee.

"Sir!" The noncom snapped to attention and saluted sharply. "Welcome back to this shithole, Sir!" he barked.

"Why, thank you, Chief Sword Threbuch," the officer said amiably, tossing off a far more casual salute in response. Then he extended his right hand and gripped the older man's hand firmly. "I trust the Powers That Be have a suitable reason for dragging me back here, Otwal," he said dryly, and the noncom smiled.

"I wish they hadn't-dragged you back, that is, Sir-but I think you may forgive them in the end," he said. "I'm sort of surprised they managed to catch you, though. I figured you'd be well on your way back to Garth Showma by now."

"So did I," Hundred Olderhan replied wryly. He shook his head. "Unfortunately, Hundred Thalmayr seems to've gotten himself delayed in transit somewhere along the way, and Magister Halathyn was quick enough off the mark to catch me before he got here. If the magister had only waited another couple of days for Thalmayr to get here to relieve me, I'd have been aboard ship and far enough out to sea to get away clean."

"Sorry about that, Sir." The chief sword grinned. "I hope you'll tell the Five Thousand I tried to get you home for your birthday."

"Oh, Father will forgive you, Otwal," Jasak assured him. "Mother, now . . ."

"Please, Sir!" The chief sword shivered dramatically. "I still remember what your lady mother had to say to me when I got the Five Thousand home late for their anniversary."

"According to Father, you did well to get him home at all," the hundred said, and the chief sword shrugged.

"The Five Thousand was too tough for any jaguar to eat, Sir. All I did was stop the bleeding."

"Most he could have expected out of you after he was stupid enough to step right on top of it." The chief sword gave the younger man a sharp look, and the hundred chuckled. "That's the way Father describes it, Otwal. I promise you I'm not being guilty of filial disrespect."

"As the Hundred says," the chief sword agreed.

"But since our lords and masters appear to have seen fit to make me miss my birthday, suppose you tell me exactly what we have here, Chief Sword." The hundred's voice was much crisper, his brown eyes intent, and the chief sword came back to a position midway between stand easy and parade rest.

"Sir, I'm afraid you'll need to ask Magister Halathyn for the details. All I know is that he says the potential tests on this portal's field strength indicate that there's at least one more in close proximity. A big one."

"How big?" Jasak asked, his eyes narrowing.

"I don't really know, Sir," Threbuch replied. "I don't think Magister Halathyn does yet, for that matter. But he was muttering something about a class eight."

Sir Jasak Olderhan's eyebrows rose, and he whistled silently. The largest trans-temporal portal so far charted was the Selkara Portal, and it was only a class seven. If Magister Halathyn had, indeed, detected a class eight, then this muddy, swampy hunk of jungle was about to become very valuable real estate.

"In that case, Chief Sword," he said mildly after a moment, "I suppose you'd better get me to Magister Halathyn."

Halathyn vos Dulainah was very erect, very dark-skinned, and very silver-haired, with a wiry build which was finally beginning to verge on frail. Jasak wasn't certain, but he strongly suspected that the old man was well past the age at which Authority regs mandated the retirement of the Gifted from active fieldwork. Not that anyone was likely to tell Magister Halathyn that. He'd been a law unto himself for decades and the UTTTA's crown jewel ever since he'd left the Mythal Falls Academy twenty years before, and he took an undisguised, almost childlike delight in telling his nominal superiors where they could stuff their regulations.

He hadn't told Jasak exactly why he was out here in the middle of this mud and bug-infested swamp, nor why Magister Gadrial Kelbryan, his second-in-command at the Garth Showma Institute, had followed him out here. He'd insisted with a bland-faced innocence which could not have been bettered by a twelve-year-old caught with his hand actually in the cookie jar, that he was "on vacation." He certainly had the clout within the UTTTA to commandeer transportation for his own amusement if that was what he really wanted, but Jasak suspected he was actually engaged in some sort of undisclosed research. Not that Magister Halathyn was going to admit it. He was too delighted by the opportunity to be mysterious to waste it.

He was also, as his complexion and the "vos" in front of his surname proclaimed, both a Mythalan and a member of the shakira caste. As a rule, Jasak Olderhan was less than fond of Mythalans . . . and considerably less fond than that of the shakira. But Magister Halathyn was the exception to that rule, as he was to so many others.

The magister looked up as Chief Sword Threbuch followed Jasak into his tent, the heels of their boots loud on its raised wooden flooring. He tapped his stylus on the crystal display in front of him, freezing his notes and the calculations he'd been performing, and smiled at the hundred over the glassy sphere.

"And how is my second-favorite crude barbarian?" he inquired in genial Andaran.

"As unlettered and impatient as ever, Sir," Jasak replied, in Mythalan, with an answering smile. The old magister chuckled appreciatively and extended his hand for a welcoming shake. Then he cocked his canvas camp chair back at a comfortable, teetering angle and waved for Jasak to seat himself in the matching chair on the far side of his worktable.

"Seriously, Jasak," he said as the younger man obeyed the unspoken command, "I apologize for yanking you back here. I know how hard it was for you to get leave for your birthday in the first place, and I know your parents must have been looking forward to seeing you. But I thought you'd want to be here for this one. And, frankly, with all due respect to Hundred Thalmayr, I'm not sorry he was delayed. All things being equal, I'd prefer to have you in charge just a little longer."

Jasak stopped his grimace before it ever reached his expression, but it wasn't the easiest thing he'd ever done. Although he genuinely had been looking forward to spending his birthday at home in Garth Showma for the first time in over six years, he hadn't been looking forward to handing "his" company over to Hadrign Thalmayr, even temporarily. Partly because of his jealously possessive pride in Charlie Company, but also because Thalmayr-who was senior to him-had only transferred into the Scouts seventeen months ago. From his record, he was a perfectly competent infantry officer, but Jasak hadn't been impressed with the older man's mental flexibility the few times they'd met before Jasak himself had been forward-deployed. And it was pretty clear his previous line infantry experience had left him firmly imbued with the sort of by-the-book mentality the Temporal Scouts worked very hard to eradicate.

Which wasn't something he could discuss with a civilian, even one he respected as deeply as he did Magister Halathyn.

"The Chief Sword said something about a class eight," he said instead, his tone making the statement a question, and Magister Halathyn nodded soberly.

"Unless Gadrial and I are badly mistaken," he said, waving a hand at the letters and esoteric formulae glittering in the water-clear heart of his crystal, "it's at least a class eight. Actually, I suspect it may be even larger."

Jasak sat back in his chair, regarding the old man's lined face intently. Had it been anyone else, he would have been inclined to dismiss the preposterous claim as pure, rampant speculation. But Magister Halathyn wasn't given to speculation.

"If you're right about that, Sir," the hundred said after a moment, "this entire transit chain may just have become a lot more important to the Authority."

"It may," Magister Halathyn agreed. "Then again, it may not." He grimaced. "Whatever size this portal may be-" he tapped the crystal containing his notes "-that portal-" he pointed out through the open fly of his tent at the peculiar hole in the universe which loomed enormously beyond the muddy clearing's western perimeter "-is only a class three. That's going to bottleneck anything coming through from our putative class eight. Not to mention the fact that we're at the end of a ridiculously inconvenient chain at the moment."

"I suppose that depends in part on how far your new portal is from the other side of this one," Jasak pointed out. "The terrain between here and the coast may suck, but it's only seven hundred miles."

"Seven hundred and nineteen-point-three miles," Magister Halathyn corrected with a crooked smile.

"All right, Sir." Jasak accepted the correction with a smile of his own. "That's still a ridiculously short haul compared to most of the portal connections I can think of. And if this new portal of yours is within relatively close proximity to our class three, we're talking about a twofer."

"That really is a remarkably uncouth way to describe a spatially congruent trans-temporal transfer zone," Halathyn said severely.

"I'm just a naturally uncouth sort of fellow, Sir," Jasak agreed cheerfully. "But however you slice it, it's still a two-for-one."

"Yes, it is," Halathyn acknowledged. "Assuming our calculations are sound, of course. In fact, if this new portal is as large as I think it is, and as closely associated with our portal here, I think it's entirely possible that we're looking at a cluster."

Despite all of the magister's many years of discipline, his eyes gleamed, and he couldn't quite keep the excitement out of his voice. Not that Jasak blamed him for that. A portal cluster . . . In the better part of two centuries of exploration, UTTTA's survey teams had located only one true cluster, the Zholhara Cluster. Doubletons were the rule-indeed, only sixteen triples had ever been found, which was a rate of less than one in ten. But a cluster like Zholhara was of literally incalculable value.

This far out-they were at the very end of the Lamia Chain, well over three months' travel from Arcana, even for someone who could claim transport dragon priority for the entire trip-even a cluster would take years to fully develop. Lamia, with over twenty portals, was already a huge prize. But if Magister Halathyn was correct, the entire transit chain was about to become even more valuable . . . and receive the highest development priority UTTTA could assign.

"Of course," Magister Halathyn continued in the tone of a man forcing himself to keep his enthusiasm in check, "we don't know where this supposed portal of mine connects. It could be the middle of the Great Ransaran Desert. Or an island in the middle of the Western Ocean, like Rycarh Outbound. Or the exact center of the polar ice cap."

"Or it could be a couple of thousand feet up in thin air, which would make for something of a nasty first step," Jasak agreed. "But I suppose we'd better go find it if we really want to know, shouldn't we?"

"My sentiments exactly," the magister agreed, and the hundred looked at the chief sword.

"How soon can we move out on the magister's heading, Chief Sword?"

"I'm afraid the Hundred would have to ask Fifty Garlath about that," Threbuch replied with absolutely no inflection, and this time Jasak did grimace. The tonelessness of the chief sword's voice shouted his opinion (among other things) of Commander of Fifty Shevan Garlath as an officer of the Union of Arcana. Unfortunately, Sir Jasak Olderhan's opinion exactly matched that of his company's senior noncommissioned officer.

"If the Hundred will recall," the chief sword continued even more tonelessly, "his last decision before his own departure was to authorize Third Platoon's R and R. That leaves Fifty Garlath as the SO here at the base camp."

Jasak winced internally as Threbuch tactfully (sort of) reminded him that leaving Garlath out here at the ass-end of nowhere had been his own idea. Which had seemed like a good one at the time, even if it had been a little petty of him. No, more than a little petty. Quite a bit more, if he wanted to be honest. Chief Sword Threbuch hadn't exactly protested at the time, but his expression had suggested his opinion of the decision. Not because he disagreed that Fifty Therman Ulthar and his men had earned their R&R, but because Shevan Garlath was arguably the most incompetent platoon commander in the entire brigade. Leaving him in charge of anything more complicated than a hot cider stand was not, in the chief sword's considered opinion, a Good Idea.

"We'd have to recall Fifty Ulthar's platoon from the coast, if you want to use him, Sir," the chief sword added, driving home the implied reprimand with exquisite tact.

Jasak was tempted to point out that Magister Halathyn had already dragged him back from the company's main CP at the coastal enclave, so there was really no reason he shouldn't recall Fifty Ulthar. Except, of course, that he couldn't. First, because doing so would require him to acknowledge to the man who'd been his father's first squad lance that he'd made a mistake. Both of them might know he had, but he was damned if he was going to admit it.

But second, and far more important, was the patronage system which permeated the Arcanan Army, because patronage was the only thing that kept Garlath in uniform. Not even that had been enough to get him promoted, but it was more than enough to ensure that his sponsors would ask pointed questions if Jasak went that far out of his way to invite another fifty to replace him on what promised to be quite possibly the most important portal exploration on record. If Magister Halathyn's estimates were remotely near correct, this was the sort of operation that got an officer noticed.

Which, in Jasak's opinion, was an even stronger argument in favor of handing it to a competent junior officer who didn't have any patrons . . . and whose probable promotion would actually have a beneficial effect on the Army. But- "All right, Chief Sword," he sighed. "My respects to Fifty Garlath, and I want his platoon ready to move out at first light tomorrow."

The weather was much cooler on the other side of the base portal. Although it was only one hour earlier in the local day, it had been mid-afternoon-despite Jasak's best efforts-before Commander of Fifty Garlath's First Platoon had been ready to leave base camp and step through the immaterial interface between Hilmaran swamp and subarctic Andara in a single stride. The portal's outbound side was located smack on top of the Great Andaran Lakes, five thousand miles north of their departure portal, in what should have been the Kingdom of Lokan. In fact, it was on the narrow neck of land which separated Hammerfell Lake and White Mist Lake from Queen Kalthra's Lake. It might be only one hour east of the base camp, but the difference in latitude meant that single step had moved them from sweltering early summer heat into the crispness of autumn.

Jasak had been raised on his family's estates on New Arcana, less than eighty miles from the very spot at which they emerged, but New Arcana had been settled for the better part of two centuries. The bones of the Earth were the same, and the cool, leaf-painted air of a northern fall was a familiar and welcome relief from the base camp's smothering humidity, but the towering giants of the primordial forest verged on the overpowering even for him.

For Fifty Garlath, who had been raised on the endless grasslands of Yanko, the restricted sightlines and dense forest canopy were far worse than that. Hundred Olderhan, CO of Charlie Company, First Battalion, First Regiment, Second Andaran Temporal Scouts, couldn't very well take one of his platoon commanders to task in front of his subordinates for being an old woman, but Sir Jasak Olderhan felt an almost overpowering urge to kick Garlath in the ass.

He mastered the temptation sternly, but it wasn't easy, even for someone as disciplined as he was. Garlath was supposed to be a temporal scout, after all. That meant he was supposed to take the abrupt changes in climate trans-temporal travel imposed in stride. It also meant he was supposed to be confident in the face of the unknown, well versed in movement under all sorts of conditions and in all sorts of terrain. He was not supposed to be so obviously intimidated by endless square miles of trees.

Jasak turned away from his troopers to distract himself (and his mounting frustration) while Garlath tried to get his command squared away. He stood with his back to the brisk, northern autumn and gazed back through the portal at the humid swamp they had left behind. It was the sort of sight with which anyone who spent as much time wandering about between universes as the Second Andarans did became intimately familiar, but no one ever learned to take it for granted.

Magister Halathyn's tone had been dismissive when he described the portal as "only a class three." But while the classification was accurate, and there were undeniably much larger portals, even a "mere" class three was the better part of four miles across. A four-mile disk sliced out of the universe . . . and pasted onto another one.

It was far more than merely uncanny, and unless someone had seen it for himself, it was almost impossible to describe properly.

Jasak himself had only the most rudimentary understanding of current portal theory, but he found the portals themselves endlessly fascinating. A portal appeared to have only two dimensions-height, and width. No one had yet succeeded in measuring one's depth. As far as anyone could tell, it had no depth; its threshold was simply a line, visible to the eye but impossible to measure, where one universe stopped . . . and another one began.

Even more fascinating, it was as if each of the universes it connected were inside the other one. Standing on the eastern side of a portal in Universe A and looking west, one saw a section of Universe B stretching away from one. One might or might not be looking west in that universe, since portals' orientation in one universe had no discernible effect on their orientation in the other universe to which they connected. If one stepped through the portal into Universe B and looked back in the direction from which one had come, one saw exactly what one would have expected to see-the spot from which one had left Universe A. But, if one returned to Universe A and walked around the portal to its western aspect and looked east, one saw Universe B stretching away in a direction exactly 180 degrees reversed from what he'd seen from the portal's eastern side in Universe A. And if one then stepped through into Universe B, one found the portal once again at one's back . . . but this time looking west, not east, into Universe A.

The theoreticians referred to the effect as "counterintuitive." Most temporal scouts, like Jasak, referred to it as the "can't get there" effect, since it was impossible to move from one side to the other of a portal in the same universe without circling all the way around it. And, since that held true for any portal in any universe, no one could simply step through a portal one direction, then step back through it to emerge on its far side in the same universe. In order to reach the far side of the portal at the other end of the link, one had to walk all the way around it, as well.

Frankly, every time someone tried to explain the theory of how it all worked to Jasak, his brain hurt, but the engineers responsible for designing portal infrastructure took advantage of that effect on a routine basis. It always took some getting used to when one first saw it, of course. For example, it wasn't at all uncommon to see two lines of slider cars charging into a portal on exactly opposite headings-one from the east and the other from the west-at the exact same moment on what appeared to be exactly the same track. No matter how carefully it had all been explained before a man saw it for the first time with his own eyes, he knew those two sliders had to be colliding in the universe on the other side of that portal. But, of course, they weren't. Viewed from the side in that other universe, both sliders were exploding out of the same space simultaneously . . . but headed in exactly opposite directions.

From a military perspective, the . . . idiosyncrasies of trans-temporal travel could be more than a little maddening, although the Union of Arcana hadn't fought a true war in over two centuries.

At the moment, Jasak stood roughly at the center of the portal through which he had just stepped, looking back across it at the forward base camp and the swamp they'd left behind. The sunlight on the far side fell from a noticeably different angle, creating shadows whose shape and direction clashed weirdly with those of the cool, northern forest in which he stood. Swamp insects bumbled busily towards the immaterial threshold between worlds, then veered away as they hit the chill breeze blowing back across it.

This particular portal was relatively young. The theorists were still arguing about exactly how and why portals formed in the first place, but it had been obvious for better than a hundred and eighty years that new ones were constantly, if not exactly frequently, being formed. This one had formed long enough ago that the scores of gigantic trees which had been sliced in half vertically by its creation had become dead, well-dried hulks, but almost a dozen of them still stood, like gaunt, maimed chimneys. It wouldn't be long before the bitter northern winters toppled them, as well, yet the fact that it hadn't already happened suggested that they'd been dead for no more than a few years.

Which, Jasak told himself acidly, was not so very much longer than it appeared to be taking Fifty Garlath to get his platoon sorted out.

Eventually, however, even Garlath had his troopers shaken down into movement formation. Sort of. His single point man was too far from the main body, and he'd spread his flank scouts far too wide, but Jasak clamped his teeth firmly against a blistering reprimand . . . for now. He'd already intended to have a few words with Garlath about the totally unacceptable delay in getting started, but he'd decided he'd wait until they bivouacked and he could "counsel" his subordinate in private. With Charlie Company detached from the battalion as the only organized force at this end of the transit chain, it was particularly important not to undermine the chain of command by giving the troops cause to think that he considered their platoon CO an idiot.

Especially when he did.

So instead of ripping Garlath a new one at the fresh proof of his incompetence, he limited himself to one speaking glance at Chief Sword Threbuch, then followed along behind Garlath with Threbuch and Magister Kelbryan.

Although Jasak had enjoyed the privilege of serving with Magister Halathyn twice before, this was the first time he'd actually met Kelbryan. She and Halathyn had worked together for at least twenty years-indeed, she was one of the main reasons the UTTTA had acquired the exclusive use of Halathyn's services in the first place-but she normally stayed home, holding down the fort at the institute at Garth Showma on New Arcana which Halathyn had created from the ground up for the Authority. Jasak had always assumed, in a casual sort of way, that that was because she preferred civilization to the frontier. Or, at least, that she would have been unsuited to hoofing it through rugged terrain with the Andaran Scouts.

He still didn't know her very well. In fact, he didn't know her at all. She'd only reached their base camp three weeks earlier, and she seemed to be a very private person in a lot of ways. But he'd already discovered that his assumptions had been badly off base. Kelbryan was a couple of years older than he was, and her Ransaran ancestry showed in her almond eyes, sandalwood complexion, and dark, brown-black hair. At five-eight, she was tall for a Ransaran . . . which meant she was only eight inches shorter than he was. But delicate as she seemed to him, she was obviously fit, and she'd taken the crudity of the facilities available at the sharp end of the Authority's exploration in stride, without turning a hair.

She was also very, very good at her job-as was only to be expected, given that Magister Halathyn must have had his choice of any second-in-command he wanted. Indeed, Jasak had come to realize that the true reasons she'd normally stayed home owed far less to any "delicacy" on her part than to the fact that she was probably the only person Magister Halathyn fully trusted to run "his" shop in his absence. Her academic and research credentials were impressive proof of her native brilliance, and despite the differences in their cultural heritages, she and her boss were clearly devoted to one another.

It had been obvious Magister Halathyn longed to accompany them this morning, but there were limits in all things. Jasak was prepared to go along with the fiction that vos Dulainah wasn't far past mandatory retirement age as long as the old man stayed safely in base camp; he was not about to risk someone that valuable, or of whom he was so fond, in an initial probe. Magister Kelbryan had supported him with firm tactfulness when the old man turned those longing, puppy-dog eyes in her direction, and Magister Halathyn had submitted to the inevitable with no more than the odd, heartfelt sigh of mournful regret when he was sure one of them was listening.

Now the hundred watched the team's junior magister moving through the deep drifts of leaves almost as silently as his own troopers. Despite-or possibly even because of-the fact that he'd never worked with Kelbryan before, he was impressed. And, he admitted, attracted.

She opened a leather equipment case on her belt and withdrew one of the esoteric devices of her profession. Jasak was technically Gifted himself, although his own trace of the talent was so minute that he was often astonished the testing process had been able to detect it at all. Now, as often, he felt a vague, indefinable stirring sensation as someone who was very powerfully Gifted indeed brought her Gift to bear. She gazed down into the crystal display, and her lips moved silently as she powered it up.

Jasak saw the display flicker to life and moved a little closer to look over her shoulder. She sensed his presence and looked up. For an instant, he thought she was going to be annoyed with him for crowding her, but then she smiled and tilted her wrist so that he could see the display more clearly.

In many ways, it looked a great deal like a standard Authority navigation unit. He quickly identified the latitude and longitude readouts, and the built-in clocks-one set to the base camp's time, and one which automatically adjusted to local time on this side of the portal-and the compass and directional indicator arrows. But there was another arrow in the glassy heart of the sphere of sarkolis crystal, and it was flanked by two waterfall displays which had never been part of any navigation unit he'd ever used.

"This one," she said quietly, tapping the green waterfall, "indicates the portal's approximate distance. And this one," she tapped the red waterfall, "indicates its measured field strength. And the arrow, of course," she grinned, "indicates the direction."

"I've never seen a unit quite like that one," Jasak admitted, and she snorted in amusement.

"That's because Magister Halathyn and I built it ourselves," she told him. "Actually, he did most of the design work-I was just the grunt technician who put it together."