This time, however, it did not thicken into blackness. It became luminous, brightening to a dazzle and dimming again to a colored mist, and then it cleared, while Benson stood at raise pistol, as though on a target range. He was facing a big desk at twenty feet, across a thick-piled blue rug. There was a man seated at the desk, a white-haired man with a mustache and a small beard, who wore a loose coat of some glossy plum-brown fabric, and a vividly blue neck-scarf.

The pistol centered on the v-shaped blue under his chin. Deliberately, Benson squeezed, recovered from the recoil, aimed, fired, recovered, aimed, fired. Five seconds gone. The old man slumped across the desk, his arms extended. Better make a good job of it, six, seven, eight seconds; he stepped forward to the edge of the desk, call that fifteen seconds, and put the muzzle to the top of the man's head, firing again and snapping on the safety. There had been something familiar about The Guide's face, but it was too late to check on that, now. There wasn't any face left; not even much head.

A box, on the desk, caught Benson's eye, a cardboard box with an envelope, stamped _Top Secret! For the Guide Only!_ taped to it. He holstered his pistol and caught that up, stuffing it into his pocket, in obedience to an instinct to grab anything that looked like intelligence matter while in the enemy's country. Then he stepped back to the spot where the field had deposited him. He had ten seconds to spare; somebody was banging on a door when the blue mist began to gather around him.

He was crouching, the spherical plastic object in his right hand, his thumb over the b.u.t.ton, when the field collapsed. Sure enough, right in front of him, so close that he could smell the very heat of it, was the big tank with the red star on its turret. He cursed the s.e.xtet of sanctimonious double-crossers eight thousand miles and fifty years away in s.p.a.ce-time. The machine guns had stopped--probably because they couldn't be depressed far enough to aim at him, now; that was a notorious fault of some of the newer Pan-Soviet tanks--and he rocked back on his heels, pressed the b.u.t.ton, and heaved, closing his eyes. As the thing left his fingers, he knew that he had thrown too hard. His muscles, accustomed to the heavier cast-iron grenades of his experience, had betrayed him. For a moment, he was closer to despair than at any other time in the whole phantasmagoric adventure. Then he was. .h.i.t, with physical violence, by a wave of almost solid heat. It didn't smell like the heat of the tank's engines; it smelled like molten metal, with undertones of burned flesh. Immediately, there was a multiple explosion that threw him flat, as the tank's ammunition went up. There were no screams. It was too fast for that. He opened his eyes.

The turret and top armor of the tank had vanished. The two ma.s.sive treads had been toppled over, one to either side. The body had collapsed between them, and it was running sticky trickles of molten metal. He blinked, rubbed his eyes on the back of his hand, and looked again. Of all the many blasted and burned-out tanks, Soviet and UN, that he had seen, this was the most completely wrecked thing in his experience. And he'd done that with one grenade....

At that moment, there was a sudden rushing overhead, and an instant later the barrage began falling beyond the crest of the ridge. He looked at his watch, blinked, and looked again. That barrage was due at 0550; according to the watch, it was 0726. He was sure that, ten minutes ago, when he had looked at it, up there at the head of the ravine, it had been twenty minutes to six. He puzzled about that for a moment, and decided that he must have caught the stem on something and pulled it out, and then twisted it a little, setting the watch ahead. Then, somehow, the stem had gotten pushed back in, starting it at the new setting. That was a pretty far-fetched explanation, but it was the only one he could think of.

But about this tank, now. He was positive that he could remember throwing a grenade.... Yet he'd used his last grenade back there at the supply dump. He saw his carbine, and picked it up. That silly blackout he'd had, for a second, there; he must have dropped it. Action was open, empty magazine on the ground where he'd dropped it. He wondered, stupidly, if one of his bullets couldn't have gone down the muzzle of the tank's gun and exploded the sh.e.l.l in the chamber.... Oh, the h.e.l.l with it! The tank might have been hit by a premature shot from the barrage which was raging against the far slope of the ridge. He reset his watch by guess and looked down the valley. The big attack would be starting any minute, now, and there would be fleeing Commies coming up the valley ahead of the UN advance. He'd better get himself placed before they started coming in on him.

He stopped thinking about the mystery of the blown-up tank, a solution to which seemed to dance maddeningly just out of his mental reach, and found himself a place among the rocks to wait. Down the valley he could hear everything from pistols to mortars going off, and shouting in three or four racial intonations. After a while, fugitive Communists began coming, many of them without their equipment, stumbling in their haste and looking back over their shoulders. Most of them avoided the mouth of the ravine and hurried by to the left or right, but one little clump, eight or ten, came up the dry stream-bed, and stopped a hundred and fifty yards from his hiding-place to make a stand. They were Hindus, with outsize helmets over their turbans. Two of them came ahead, carrying a machine gun, followed by a third with a flame-thrower; the others retreated more slowly, firing their rifles to delay pursuit.

Cuddling the stock of his carbine to his cheek, he divided a ten-shot burst between the two machine-gunners, then, as a matter of principle, he shot the man with the flame-thrower. He had a dislike for flame-throwers; he killed every enemy he found with one. The others dropped their rifles and raised their hands, screaming: "Hey, Joe! Hey, Joe! You no shoot, me no shoot!"

A dozen men in UN battledress came up and took them prisoner. Benson shouted to them, and then rose and came down to join them. They were British--Argyle and Sutherland Highlanders, advertising the fact by inconspicuous bits of tartan on their uniforms. The subaltern in command looked at him and nodded.

"Captain Benson? We were warned to be on watch for your patrol," he said. "Any of the rest of you lads get out?"

Benson shrugged. "We split up after the attack. You may run into a couple of them. Some are locals and don't speak very good English. I've got to get back to Division, myself; what's the best way?"

"Down that way. You'll overtake a couple of our walking wounded. If you don't mind going slowly, they'll show you the way to advance dressing station, and you can hitch a ride on an ambulance from there."

Benson nodded. Off on the left, there was a flurry of small-arms fire, ending in yells of "Hey, Joe! Hey, Joe!"--the World War IV version of "Kamarad"!

His company was a non-T/O outfit; he came directly under Division command and didn't have to bother reporting to any regimental or brigade commanders. He walked for an hour with half a dozen lightly wounded Scots, rode for another hour on a big cat-truck loaded with casualties of six regiments and four races, and finally reached Division Rear, where both the Division and Corps commanders took time to compliment him on the part his last hunter patrol had played in the now complete breakthrough. His replacement, an equine-faced Spaniard with an imposing display of fruit-salad, was there, too; he solemnly took off the bracelet a refugee Caucasian goldsmith had made for his predecessor's predecessor and gave it to the new commander of what had formerly been Benson's Butchers. As he had expected, there was also another medal waiting for him.

A medical check at Task Force Center got him a warning; his last patrol had brought him dangerously close to the edge of combat fatigue.

Remembering the incidents of the tank and the unaccountably fast watch, and the mysterious box and envelope which he had found in his coat pocket, he agreed, saying nothing about the questions that were puzzling him. The Psychological Department was never too busy to refuse another case; they hunted patients gleefully, each psych-shark seeking in every one proof of his own particular theories. It was with relief that he watched them fill out the red tag which gave him a priority on jet transports for home.

Ankara to Alexandria, Alexandria to Dakar, Dakar to Belem, Belem to the shattered skyline of New York, the "hurry-and-wait" procedures at Fort Carlisle, and, after the usual separation promotion, Major Fred Benson, late of Benson's Butchers, was back at teaching high school juniors the difference between H_{2}O and H_{2}SO_{4}.

There were two high schools in the city: McKinley High, on the east side, and Dwight Eisenhower High, on the west. A few blocks from McKinley was the Tulip Tavern, where the Eisenhower teachers came in the late afternoons; the McKinley faculty crossed town to do their after-school drinking on the west side. When Benson entered the Tulip Tavern, on a warm September afternoon, he found Bill Myers, the school psychologist, at one of the tables, smoking his pipe, checking over a stack of apt.i.tude test forms, and drinking beer. He got a highball at the bar and carried it over to Bill's table.

"Oh, hi, Fred." The psychologist separated the finished from the unfinished work with a sheet of yellow paper and crammed the whole business into his brief case. "I was hoping somebody'd show up...."

Benson lit a cigarette, sipped his highball. They talked at random--school-talk; the progress of the war, now in its twelfth year; personal reminiscences, of the Turkish Theater where Benson had served, and the Madras Beachhead, where Myers had been.

"Bring home any souvenirs?" Myers asked.

"Not much. Couple of pistols, couple of knives, some pictures. I don't remember what all; haven't gotten around to unpacking them, yet.... I have a sixth of rye and some beer, at my rooms. Let's go around and see what I did bring home."

They finished their drinks and went out.

"What the devil's that?" Myers said, pointing to the cardboard box with the envelope taped to it, when Benson lifted it out of the gray-green locker.

"Bill, I don't know," Benson said. "I found it in the pocket of my coat, on my way back from my last hunter patrol.... I've never told anybody about this, before."

"That's the d.a.m.nedest story I've ever heard, and in my racket you hear some honeys," Myers said, when he had finished. "You couldn't have picked that thing up in some other way, deliberately forgotten the circ.u.mstances, and fabricated this story about the tank and the grenade and the discrepancy in your watch subconsciously as an explanation?"

"My subconscious is a better liar than that," Benson replied. "It would have cobbled up some kind of a story that would stand up. This business...."

"Top Secret! For the Guide Only!" Myers frowned. "That isn't one of our marks, and if it were Soviet, it'd be tri-lingual, Russian, Hindi and Chinese."

"Well, let's see what's in it. I want this thing cleared up. I've been having some of the nastiest dreams, lately...."

"Well, be careful; it may be b.o.o.by-trapped," Myers said urgently.

"Don't worry; I will."

He used a knife to slice the envelope open without untaping it from the box, and exposed five sheets of typewritten onion-skin paper. There was no letterhead, no salutation or address-line. Just a ma.s.s of chemical formulae, and a concise report on tests. It seemed to be a report on an improved syrup for a carbonated soft-drink. There were a few cryptic cautionary references to heightened physico-psychological effects.

The box was opened with the same caution, but it proved as innocent of dangers as the envelope. It contained only a half-liter bottle, wax-sealed, containing a dark reddish-brown syrup.

"There's a lot of this stuff I don't dig," Benson said, tapping the sheets of onion-skin. "I don't even scratch the surface of this rigamarole about The Guide. I'm going to get to work on this sample in the lab, at school, though. Maybe we have something, here."

At eight-thirty the next evening, after four and a half hours work, he stopped to check what he had found out.

The school's X-ray, an excellent one, had given him a complete picture of the molecular structure of the syrup. There were a couple of long-chain molecules that he could only believe after two re-examinations and a careful check of the machine, but with the help of the notes he could deduce how they had been put together. They would be the Ingredient Alpha and Ingredient Beta referred to in the notes.

The components of the syrup were all simple and easily procurable with these two exceptions, as were the basic components from which these were made.

The mechanical guinea-pig demonstrated that the syrup contained nothing harmful to human tissue.

Of course, there were the warnings about heightened psycho-physiological effects....

He stuck a poison-label on the bottle, locked it up, and went home. The next day, he and Bill Myers got a bottle of carbonated water and mixed themselves a couple of drinks of it. It was delicious--sweet, dry, tart, sour, all of these in alternating waves of pleasure.

"We do have something, Bill," he said. "We have something that's going to give our income-tax experts headaches."

"You have," Myers corrected. "Where do you start fitting me into it?"