Miles slapped his wrist comm channel open. "Nim!" he called.

"Sir!"

"There's a Cetagandan covert ops squad in Tower Seven. Strength unknown, but they have plasma arcs."

"Yes, sir," came Nim's breathless voice. "We just found them."

"Where are you and what can you see?"

"I have a pair of soldiers outside each of the three tower entrances, with a backup in the bushes in the parking area. The—Cetagandans, you say, sir?—-just pumped some plasma blasts out the main corridor as we tried to enter."

"Anybody hit?"

"Not yet. We're flat."

"Any sign of Commander Quinn yet?"

"No, sir."

"Can you get a fix on her wrist comm?"

"It's somewhere in the lower levels of this tower. She doesn't respond and it's not moving."

Stunned? Dead? Was her wrist even still in her wrist comm? No telling.

"All right," Miles took a breath, "put in an anonymous call to the local police. Tell them there's armed men in Tower Seven—maybe saboteurs trying to blow up the Barrier. Make it convincing—try to sound scared."

"No problem, sir," said Nim earnestly.

Miles wondered how nearly the plasma beam had parted Nim's hair. "Until the constables arrive, keep the Cetagandans sealed in the tower. Stun anyone who tries to exit. The locals can sort them out later. Put a couple of point men down in Tower Eight to seal that end, have them work north and drive the Cetagandans back if they try to exit south. But I think they'll head north." He put his hand over the comm and added to Mark, "Chasing you." He lifted his palm and continued to Nim, "As the police arrive, pull back. Avoid contact with 'em. But if you do get cornered, go meekly. We're the good guys. It's those nasty strangers inside the tower with the illegal plasma arcs they should be after. We're just tourists who spotted something peculiar while out for an evening stroll. You copy?"

There was a strained grin in Nim's voice. "Copy, sir."

"Keep an observer in sight of Tower Six. Report when the police arrive. Naismith out."

"Copy, sir. Nim out."

Mark emitted a muffled moan, and surged forward to grab Miles by his jacket. "You idiot, what are you doing? Call the Dendarii back—order them to clear the Cetagandans out of Tower Seven! Or I will—"

He made to grab at Miles's wrist; Miles held him off and put his left hand behind his back.

"Ah-ah! Calm yourself. There's nothing I'd like more than a game of stunner tag with the Cetagandans, since we outnumber them—but they have plasma arcs. Plasma arcs have more than three times the range of a stunner. I don't ask my people to face that kind of tactical disadvantage without dire need."

"If those bastards catch you they'll kill you. How much more dire does it have to be?"

"But Miles," said Ivan, looking up and down the corridor doubtfully, "didn't you just trap us in the center of a pincers movement?"

"No," Miles grinned, exhilarated, "I did not. Not while we own a cloak of invisibility. Come on!" He trotted back to the T intersection and turned right, back toward the Barrayaran-held Tower Six.

"No!" Mark balked. "The Barrayarans might kill you by accident, but they'll kill me on purpose!"

"The ones back there," Miles jerked his head over his shoulder, "would kill us both just to make sure. The Dagoola operation left the Cetagandans more peeved with Admiral Naismith than I think you have grasped. Come on."

Reluctantly, Mark followed, Ivan bringing up the rear.

Miles's heart pounded. He wished he felt half as confident as his grin to Ivan had suggested. But Mark must not be permitted to sense his doubt. A couple of hundred meters of blank synthacrete jerked past as he ran on tiptoe, trying to make as little noise as possible. If the Barrayarans had already worked their way this far down the tunnel—

They came to the last pumping station, and still no sign of the lethal trouble ahead. Or behind. This pumping station was quiescent again. It would be another twelve hours to the next high tide. If no unexpected surges came downstream, it should stay shut down till then. Still, Miles was disinclined to leave it to chance, and from the way Ivan was shifting from foot to foot, watching him with growing alarm, he'd better be able to offer a guarantee.

He began looking over the control panels, raising one for a look within. Fortunately, it was much simpler than, say, the control nexus for a Jumpship propulsion chamber. A cut here, then there, should disable this pump without lighting up boards in the watchtower. He hoped. Not that anyone in the tower was likely to be paying much attention to their boards just this moment. Miles glanced up at Mark. "I need my knife, please."

Unwillingly, Mark handed the antique dagger over, and, at a look from Miles, its sheath as well. Miles used the point to pop the hair-fine wires. His guess as to which ones were which seemed correct; he tried to look like he'd known it all along. He did not hand the knife back when he was done.

He went to the pumping chamber hatch and opened it. No beeping this time. His gravitic grappler made an instant handle on the smooth inner surface. Last problem was that damn manual locking bar. If some innocent—or not-so-innocent—came along and gave it a twirl—ah, no. The same model of tensor field lever, ally to the gravitic grappler, that Quinn had used to open the hatch to the ledge worked here. Miles blew a breath of relief through pursed lips. He returned to the control panel facing the corridor and slapped on his fisheye scan at the end of a row of dials. It blended in nicely.

He gestured toward the open hatch to the pumping chamber, as inviting as a coffin. "All right. Everybody in."

Ivan went white. "Oh, God, I was afraid that was what you had in mind." Mark did not look much more thrilled than Ivan.

Miles lowered his voice, softly persuasive. "Look, Ivan, I can't force you. You can head on up the corridor and take the chance that your uniform will keep you from getting your brains fried by somebody's nervous reflex. If you survive contact with Destang's hit squad, you'll get arrested by the locals, which probably won't be fatal. But I'd rather you stuck with me." He lowered his voice still further. "And didn't leave me alone with him ."

"Oh." Ivan blinked.

As Miles expected, this appeal for help had more impact than logic, demands, or cajolery. He added, "Look, it's just like being in a tactics room."

"It's just like being in a trap!"

"Have you ever been in a tactics room when the power's knocked out? They are traps. All that sense of command and control is an illusion. I'd rather be in the field." He smirked, and jerked his head toward his double. "Besides, don't you think Mark ought to get the chance to share your recent experience?"

"When you put it that way," growled Ivan, "it has a certain appeal."

Miles lowered himself into the pumping chamber first. He thought he could just hear distant footsteps scuffing in the corridor. Mark looked like he wanted to bolt, but with Ivan breathing down his neck he had little choice. Finally Ivan, with a gulp, dropped beside them. Miles keyed on his hand light; Ivan, the only one tall enough, shoved the heavy hatch shut. It was profoundly silent for a moment, but for their breathing, as they squatted knee to knee. Ivan's swollen, empurpled hands clenched and unclenched, sticky with sweat and blood. "At least y'now they can't hear us."

"Cozy," grunted Miles. "Pray our pursuers are as stupid as I was. I ran past this place twice." He opened the scanner case and set the receiver to project the north-and-south view of the still-empty corridor. There was a very faint draft in the chamber, Miles noted. Anything more would foretell a rush of water through the lines, and it would be time to bail out, Cetagandans or no Cetagandans.