"Rats." Ursula shivered as something darted into the water ahead to leave a trail of widening ripples. "This place must be alive with them."

"They won't hurt you."

"Maybe not." She didn't share Dumarest's confidence. "I hate the creatures. They could be everywhere."

If so they stayed but of sight as did other things which had made the subterranean complex their home. Webs festooned the glowing bowls of luminescence, their delicate, lace-like strands turning the cold glare into a nacreous glow which was reflected in broad lines of deposited slime on the curving sides of the pa.s.sages and the raised concrete platform which provided dry footing. Bridges crossed the catwalk at intervals to provide access to branches and tributary pa.s.sages. Echoes rose from theimpact of their feet to die murmuring in the distance.

In the lead Dumarest halted, dropping to his knees as he examined the path. He rubbed at the surface, examined the grime on his finger, looked again before rising. Ursula looked at him.

"Earl?"

"We could have found their trail. One must have slipped and the edge of his shoe had sc.r.a.ped the concrete."

A guard said, "It could have happened weeks ago."

"No. The mark is recent or it would have been washed clean of fragments." Dumarest stared ahead to where the tunnel branched. "Send men ahead to search for further traces."

They edged past, the beams of their flashlights making hard circles of brilliance against the stained walls, the turgid water.

Dumarest felt the woman close to his side. She was shivering beneath her cloak.

"You're cold," he said. "You should have waited on the surface."

"No." She stared at the bobbing lights. "Why don't they hurry?"

"Give them time." Dumarest saw a light steady and heard the call. "They've found something."

A patch of lichen had been sc.r.a.ped from a wall to leave a relatively light patch. Dumarest examined it, felt the ripped patch of primitive growth, and looked at the woman.

"Would this take them in the right direction?"

"They could have taken either path. The other would take them to a main junction and they would have to swing around the initial processing area. This would take them to the tributary inlets from the west.""This is the way they came," said Dumarest. The marks could have been deliberately placed but the odds were against it, Amateur conspirators would have no time or thought for such deceptions and, as yet, they wouldn't know they were being followed. "Let everyone keep a watch for more signs and avoid making any noise."

The tunnels were sounding tubes and small sounds would be magnified. Something which worked both ways but, though Dumarest had called a halt several times in order to listen, he'd heard nothing.

"Hurry," said Ursula. "We must hurry!"

A reversal of her previous confidence when she had been certain nothing could threaten the Choud. Only when she'd learned of an alternative route to Hury had she displayed a nervous anxiety. One shared by the guards.

Dumarest thinned his lips as one called to him from where he'd halted ahead.

"Keep your voice down, d.a.m.n you! What is it?"

"A branch." The man pointed. "Which way do we go? Left or right?"

"Ursula?" Then, as she made no answer Dumarest snapped, "What's the matter? Doesn't any of you know how these sewers run?"

"Not the entire system."

"But you know where the target is?"

"Of course, but all these pa.s.sages are confusing." She kept her voice low, words echoing to be lost in the susurration of the water. "A thing which will have to be rectified but who could have guessed we should need the information?"

"Those who built this place." Dumarest looked at the sides of the tunnel. "If they had had any sense they would have set upmaps at strategic points.

"Earl, we have no time to look!"

"We'll look as we go on," he told her. "For now we'll split." His gestures divided the party. "You will take the right-hand tunnel while we take the left. If you hit another junction, split again if you have to. Keep searching until you find something. If you do, slow down and act with caution. We don't want to alert the men we're looking for. And remember-it won't help anyone if you get yourselves hurt."

They pressed on, the pa.s.sages smaller now, the walls more thickly slimed. Beside the raised platform the water rushed past with increased velocity and the air was heavy with noxious odors. An open area gave some relief, the domed roof studded with lights, the walls pierced with rounded openings.

"A sector junction," said Ursula. "We go that way, I think."

Dumarest looked at the opening she had pointed out."

"Are you sure?"

"Yes, I-" She broke off, clutching his arm. "For G.o.d's sake what was that?"

A cry which echoed all around them, low, mournful, a wail which hung like a dirge. It came again, followed by a high-pitched ululation, a deep booming, a sound which resembled a snarl. Cries made by injured men, distorted, magnified, sent to stir the air in deceptive vibrations.

"Balain," said Dumarest. "The others must have found him."

And had been careless despite his warning. Dumarest looked down at a crumpled figure staring upward with sightless eyes. At another with a charred hole above his heart, a third with a crushed skull, a fourth and fifth burned and lying where they had fallen. Another lying with head and arms in the water as if to follow the one who had floated down to guide the living to the scene."Ambushed," said Dumarest. "The fools! I warned them to be careful."

"How?" The guard had been sick and stood beside his own vomit. "How did it happen?"

"They were careless. They talked or laughed or let their equipment strike against the wall. They were too confident and they paid for it." Dumarest stared down the pa.s.sage, at the open mouth of a side tunnel, at a ledge which rested above eye level.

"They were here, waiting, and found easy targets."

"The b.a.s.t.a.r.ds!" The man wanted revenge. "Let's get them!"

Dumarest caught Ursula by the arm as she made to follow the others. They were acting without thought despite the grim evidence of what thoughtlessness could do. They would run and make noise and warn those ahead and again the tunnels would echo to the cries of dying men.

Things he explained as she fought to break his grip.

"Earl, you're letting them kill themselves!"

"I can't stop them." He was grimly practical. "But they will draw the enemy fire and pin them down. If they learn sense those left alive will know what to do after the initial contact. But there is no point in your taking a senseless risk."

"I'm not a coward!"

"And not a fool either, I hope." Dumarest released her arm, listening to the sudden outburst of noise, the cries which echoed down the tunnel. "That's it. Now let's see what we can do."

Another wide area lay beyond the end of the tunnel, a guard lying sprawled in the opening, blood thick around his throat, the feathers which tufted his flesh. The arrow had killed, ripping as it struck, the barbed head shredding delicate tissues. Another moaned as he sat with his back against a wall clutching hisstomach. Blood pulsed between his fingers and the cloth of his uniform reeked with the stench of burned fabric.

Dumarest said, "What happened?"

"We found them. I heard a hiss and Riup dropped. Then there was a flash and I got burned." He sucked in his breath. "The beam hit me across the guts."

"Show me." Dumarest lifted the bloodied hands and examined the wound. The man had been lucky. "You'll live. Where are the others?"

"They went after the enemy. The firing came from up there."

His head jerked toward the upper regions of the domed area.

"There's a stair and the others went up it. I think one got hit."

More than one. Dumarest looked down at the sprawled bodies lying on the lower treads. One had fallen victim to an arrow.

Higher up the flight a figure sprawled, head downward, one hand extended as if to clutch at the crossbow inches from his fingers.

"k.u.mate," said Ursula looking at his face. "The supervisor of the upper plantation. I always thought he was a happy man."

Dumarest made no comment. He stood, looking upward, the laser he carried poised in his hand. As the woman rose from her inspection he said, "Stay back and under cover."

"Why?" She lifted her own weapon. "I can use this as well as anyone."

"And die as bravely?"

"If I have to, yes."

He said bluntly, "I don't want you to die, Just stay out of the way until this is over. The guards may have been able to finish it but I doubt it. If any of the Ohrm are still alive they'll be waiting for us to pa.s.s through that door."It gaped at the head of the stairs, a narrow portal, arched, glowing with a bluish light. Within it lay a dead man, another of the Ohrm, his body marked with many charred holes. Dumarest paused as he neared it, looking, straining his senses to catch any sound or flicker of light. He heard nothing but a faint humming and the light glowed with a steady luminosity.

Ursula said in a whisper, "They must have retreated, Earl.

They ran before the guards. They couldn't have expected a second group to be following them."

"Two dead," he said as quietly. "There had to be more."

"They could be lying inside. It could be over."

"Then where are the guards?"

"They, too, perhaps-" She broke off and shook her head. "I don't know. Earl, tell me what to do. You're the expert."

"I told you."

"Not that!"

"Then be careful. Don't stand too close to me and keep to one side. Watch for movement. If you see any, fire without hesitation." He added, "I'm going inside. Count to three and follow."

He moved forward, running, jumping as a foot rested on a body to land to one side, to spring again as he scanned the chamber. A litter of bodies lay on the floor, some of them guards.

"Earl?" Ursula had followed. She fell silent at his gesture, followed the movement of his hand. A spiral staircase lay at one end of the room terminating in an opening above. As she watched it Dumarest checked the bodies.

The Ohrm were all dead aside from one who breathed with a liquid gurgling and blew bubbles of blood from his stained lips.

None carried explosives. One of the dead guards had an arrow in his heart Counting them, adding those lying below, Dumarestfound one to be short. Upstairs?

He reached the foot and began to climb the spiral, laser held in readiness, attention concentrated on the opening above.

Halfway up he caught a transient gleam as of a firefly burning in the night. Higher and he froze, listening, aware of the instinct which sent messages of warning; the signals he had long learned to trust.

Looking at the opening, trusting the woman was watching, he made gestures with his free hand.

"What-" With sudden understanding Ursula knew. Without a break she added, "-do you think, Earl? Did the guards get them all? That Ohrm over there, is it the one we're looking for?

Here, let me help you turn him over."

She walked across the floor, emphasizing the sound of her footsteps, running to halt and gasp as if bending and lifting a heavy weight.

A deception which worked.

Dumarest saw the "glint, the loom of ma.s.s and fired as a man thrust his head, shoulders and crossbow over the edge of the opening. As he fired again the constricting finger tightened in the death shock, and the vicious hum of the released string joined the savage hiss of the arrow as it pa.s.sed close enough to catch Dumarest's hair.

Before it had fallen to the floor he was up and through the opening, leaping to one side to stand poised, eyes searching, seeing yet another stairway, the bulk of a machine, the sprawled figure of a guard.

"Earl!" Ursula appeared in the opening, tripping as her foot hit the dead man, stumbling to save herself from falling with a hand pressed against the enigmatic machine. "Did you get him?

Balain, is he dead?"

A question answered as a man stepped from behind the shielding bulk of the machine to close his arm around her throat,the forearm pressed against her windpipe as the snort of the laser he held pressed hard against her temple.

"Drop your gun! Drop it!" As she obeyed he snapped, "You, too, Earl." Throw down that laser. Do it or I'll burn her brains out!"

"Of course, Balain." Dumarest threw aside the weapon. "Or should it be Eian?"

Calmly he looked at the handler of the Sivas.

The man was as he remembered, short, stocky, a little inclined to fat, attributes emphasized by the Ohrm clothing he wore. Held by the locking arm, Ursula said blankly, "Eian? The handler?

Earl, he's dead!"

"No, he just wanted everyone to think that and it was easily arranged. A man murdered and dressed in his uniform to be rendered unrecognizable by the blast. Which is why you arranged it, Eian. A neat method of covering your tracks."

"You knew?"

"I guessed. Explosives such as carried by the Sivas can't be detonated with a laser even if the beam were powerful enough to burn through the packing. The weapons used by the guards aren't strong enough. So why did the explosives blow? They had to be fitted with detonators and no one in his right mind would have moved primed charges and risked an accidental explosion.

So it shouldn't have been accidental." Dumarest added casually, "Do you intend throttling the woman? If not I'd suggest you ease the pressure of your arm."

"If you try anything-"

"Try what? You have the gun." Dumarest displayed his empty hands. "But the woman could do you an injury if she put her mind to it and, while you're busy killing her-" He smiled as the man cursed and pushed Ursula to one side. "That's better."

She said, rubbing her throat, "Why, Earl? Why?""For money." Dumarest kept his eyes on the handler. "For a lot of money."