Walking at first, then crawling when the dunes no longer shielded them, they crept up on the Disan keep. Dark figures moved ahead of them, stopping only when they reached the crumbling black walls. They didn't use the ascending ramp, but made their way up the sheer outside face of the ramparts.

"Linethrowers," Telt whispered. "Anchor themselves when the missile hits, have some kind of quicksetting goo. Then we go up the filament with a line-climbing motor. Hys invented them."

"Is that the way you and I are going in?" Brion asked.

"No, we get out of the climbing. I told you we hit this rock once before. I know the layout inside." He was moving while he talked, carefully pacing the distance around the base of the tower. "Should be right about here."

High-pitched keening sliced the air and the top of the magter building burst into flame. Automatic weapons hammered above them. Something fell silently through the night and hit heavily on the ground near them.

"Attack's started," Telt shouted. "We have to get through now, while all the creepies are fighting it out on top." He pulled a plate-shaped object from one of his bags and slapped it hard against the wall. It hung there. He twisted the back of it, pulled something and waved Brion to the ground. "Shaped charge. Should blow straight in, but you never can tell."

The ground jumped under them and the ringing thud was a giant fist punching through the wall. A cloud of dust and smoke rolled clear and they could see the dark opening in the rock, a tunnel driven into the wall by the directional force of the explosion. Telt shone a light through the hole at the crumbled chamber inside.

"Nothing to worry about from anybody who was leaning against this wall. But let's get in and out of this black beehive before the ones upstairs come down to investigate."

Shattered rock was thick on the floor, and they skidded and tumbled over it. Telt pointed the way with his light, down a sharply angled ramp. "Underground chambers in the rock. They always store their stuff down there—"

A smoking, black sphere arced out of the tunnel's mouth, hitting at their feet. Telt just gaped, but even as it hit the floor Brion was jumping forward. He caught it with the side of his foot, kicking it back into the dark opening of the tunnel. Telt hit the ground next to him as the orange flame of an explosion burst below. Bits of shrapnel rattled from the ceiling and wall behind them.