"I think we're ready, Father," said Cincinnatus.

The Giant's voice came over the cabin speakers. "Attach yourself to a wall and strap in. I don't want to have to worry about you bouncing around in there while I'm maneuvering."

"So you're planning to show off what a hotshot pilot you are?" asked Ender. Cincinnatus made sure that they were all leaning against the wall of the cabin as the walls extended grips to hold them firmly. The lander was designed to carry cargo -- there were no seats. The walls were designed to restrain whatever was placed up against them, whether people or cargo.

"Eh," said the Giant. "It's been a while since I had a chance to fly a sweet machine like the Hound."

After the experience of bumping around in the Puppy, Cincinnatus was duly impressed with the Giant's piloting skills. The Hound detached and puffed free of the Herodotus, and then suddenly it was moving forward. There were no lurches, no abrupt changes of direction. One smooth parabola, a marvel of efficiency, and they were positioned over the still-open airlock of the ark.

From the belly of the Hound, a self-shaping tube extended and created a seal against the surface of the ark, completely surrounding the airlock door. The children watched on a holodisplay at the front of the cabin. They felt the sudden gust as air from the Hound puffed into the tube and the open airlock.

"We're connected," said the Giant. "When you get the inner airlock door open, command passes to Cincinnatus."

Carlotta dropped down the tube first and made sure the outer airlock could close behind them, in case some accident detached the tube from the ark's surface. She closed it and reopened it twice. Then she called, and Cincinnatus and Ender dropped down the tube into the airlock, carrying their shotguns, with the spray packs on their backs and the nozzles attached to their wrists.

Cincinnatus switched on his helmet's display, and after a moment's recon, the helmet computer began to outline and label all the key features of the airlock. That was the easy part -- Carlotta had already programmed in all the information from Cincinnatus's first foray. As they went farther into the ark, Carlotta would orally label whatever she saw that needed labeling, so that the helmets could create maps on the fly, and they would all see the same names for everything.

Cincinnatus located himself in front of the inner airlock door. He half expected a couple of dozen rabs to be positioned all around the door, waiting to pounce the moment it opened. That's what he would have done, if he'd been in charge of defending the ark.

The door slid open.

Nothing moved.

Cincinnatus slipped into the corridor, orienting himself to stand upright in the narrow space. To Formics, he would seem to be sideways, standing on the wall. Not that it made any difference. He tested the feel of his magnetics and murmured, "Mags five."

The others gave the same command, tuning their boots to stick even less tightly to the "floor."

When Cincinnatus came here before, he had seen rabs almost immediately. Did it mean anything that they weren't showing up yet?

The Giant's voice murmured in his ear. "I assumed that the ecotat would have days the same length as the Formic home world. If your previous entry was at Formic noon, you're now coming in at midnight."

"If they're nocturnal then this is day, same benefit," said Ender softly.

"If they're dusk feeders then this is dawn," said Cincinnatus. "And we're iced."

"I don't see any yet," said Carlotta.

They passed under two upward passages but Carlotta didn't tell them to go up. It wasn't until they came to a large opening to the left that she said, "This is one of the standpipes."

"Aren't those rocket tubes inside?" asked Cincinnatus.

"But all the controls run up between the standpipe and the hull," said Carlotta. "Let's at least take a look."

The passage was sealed off from the perimeter corridor -- an airtight seal, so that a breach in the hull would not suck air from the passages that ran the length of the ship. It opened with a lever like the one at the airlock.

Inside, there was a crescent-shaped space. The desiccated corpses of four Formic workers were discarded like broken dolls, some of their limbs broken off and randomly strewn. Cincinnatus couldn't help a momentary recoil.

"I don't think they died here," said Ender almost at once. "They were probably thrust down here by the force of deceleration as the ark approached the planet. They were already completely dried up by then -- all this breakage came recently, and they've been dead for a century."

"So they died when the Hive Queen died," said Cincinnatus.

"Presumably," said Ender. "That's what Formics do."

"The rabs didn't eat them," said Carlotta.

"Guess they can't work the levers," said Cincinnatus.

"Not smart enough to understand them," said Ender. "They're strong and dextrous enough."

The whole length of this standpipe had apparently been sealed off from the rabs. They ran into no more corpses, and no hostiles, either. But when they came out of the standpipe passage into another perimeter corridor, it was a different story.

The air was filled with debris, floating like dustmotes in a beam of light. It took a moment to determine that they were body parts. The helmet's heat sensor showed Cincinnatus that there might be living creatures beyond the curve of the corridor in both directions, but none within line of sight.

Ender came through and began picking pieces out of the air to examine them.

"Bits of rab bodies, but also bits of other life-forms. Wings like insects. Really big ones. Lots of little skeletal bits, skin I don't recognize."

"En, stay close; Lot, can you tether him so you can tug him? Don't want any gaps opening."

He knew that Carlotta would obey, hooking a three-meter cable from herbelt to Ender's. He had no time to check, anyway, because rabs now came hurtling through the debris, rebounding from wall to floor to ceiling, scattering a hailstorm of bones and shells and wings and skin bits as they came. It was like intertwining tornadoes coming up the corridor.

Up the corridor. All at once Cincinnatus understood how useful Ender Wiggin's "enemy's gate is down" doctrine could be. Cincinnatus dropped onto his back and then braced his feet against the walls, the narrow way, and shot the spray down between his legs.

The spray -- if it worked on rabs at all -- was supposed to be very quick. It shot out from the nozzle in a fine aerosol fog, but at such speed that it filled the corridor for at least ten meters ahead. The smell was very faint.

Naturally, the sedative fog did nothing to slow the rabs' forward progress; Cincinnatus had his shotgun in firing position at once, aiming downward between his legs, as he waited to see what condition the rabs were in when they arrived.

They were still bouncing off the walls, but now he could see it wasn't a controlled movement. Instead of always landing on legs, any part of their bodies might hit the wall, and they tumbled end over end instead of jaws first.

"Spray's working," said Cincinnatus.

He reoriented himself so he could walk in the corridor again. Drugged-up rabs from Ender's direction pelted him in the back as rabs hit him in the front. The suits absorbed much of the shock, but not all of it. Not enough of it. There'd be some bruising, and when they hit Cincinnatus's facemask, the impact rocked his head back. He moved forward briskly, firing off a short burst of spray every ten meters or so. Ender didn't fire at all -- they were moving into the residue of Cincinnatus's spray, leaving Ender's original burst of fog to guard the passage behind them.

Cincinnatus passed a large airtight door on the right, leading toward the center of the ark. He made a quiet bet that Carlotta would choose this one, because it wasn't open and therefore might be rab-free. Sure enough, she levered it open and there was no debris inside, though a good amount of it began osmoting through, along with fog.

He saw Ender move through the door and Carlotta closed it. The amount of debris that had come through was relatively slight, and Cincinnatus led the way along this corridor at a brisk walk.

After a short way, the corridor opened out into a huge sandwichlike chamber. Cincinnatus forced his mind to reorient to the way Formics would have seen the room. The space between floor and ceiling was no more than a meter, but both surfaces undulated. And both surfaces were pocked with indentations. Deep ones.

"Sleeping quarters," Carlotta guessed.

She had to be right. Each indentation was deep enough for a Formic worker to crawl in to sleep. The soft, organic surface would protect them from the stress of acceleration. Cincinnatus reached a hand inside and pressed against it. It broke. Once it might have been resilient, but it had dried out. Probably the Formics moistened their own cells when they slept, to keep them supple. But now the walls crumbled into flakes when pressed. Some of the cells had Formic corpses in them. Most were empty.

They found themselves in a long corridor running in the direction of the axis of the ship. This time the tube had tracks on what the Formics would consider to be the floor and the ceiling. It made sense -- a cart would never stay on tracks that only ran along the floor. Something was hauled along these tracks -- and regularly. Cincinnatus saw that the metal tracks were shiny with constant use.

"The trains are still running," Carlotta said.

As if on cue, Ender gave warning from the rear. "Press into the corners, here comes the train."

Cincinnatus dropped to the "floor" he had been walking on and stretched himself out. Moments later, a tram moved along the tracks, tension bars holding the wheels to both sets of tracks. The body of the tram was like a chicken-wire cage, bulging with some kind of organic material. Plants? No, they were writhing, pushing against the wire. But nothing was getting out.

Not rabs, not even rablike. These were soft-bodied creatures, more like slugs, but with wider bodies and a kind of hair. Or cilia. Caterpillars? Analogies to Earth fauna would probably be unproductive and misleading. Ender's job, anyway.

Cincinnatus followed the tram but did not try to keep up with it. The thing was automatic. The question was whether it would run in a loop or reverse direction and come back this way for another load.

It didn't come back, and after a while Cincinnatus came to a place where the tracks curved inward toward the center. Cincinnatus stayed with them, of course, and came up against the back of the tram, which was stopped exactly over an opening. A sickening odor was coming from the space where the opening led.

Through the chicken wire Cincinnatus could see that something was cleaning out the cage.

It was a rab.

But it ate nothing, just scraped out the last of the clinging slugs. Then the opening closed, the tube was dark again except for the light from Cincinnatus's helmet, and the tram moved along in the same direction instead of backtracking. So it was a loop. And the load had been delivered.

Cincinnatus gathered them around the place where the opening had been. There was no visible lever to open the door.

"What now, Lot?" asked Cincinnatus. "There was at least one rab on the other side, but it didn't eat the slugs, just pulled them out."

"Did it look like that's what the grabbing claw was designed for?" asked Ender.

"Not our concern right now, but ... yes," said Cincinnatus. "Could be that this is the task the rabs were actually designed for."

"Meanwhile," said Carlotta, "I think we can trip the signal that tells the system that a tram is here, so the door will open. It's mechanical. Look, the wheel passes over a treadle and the pressure trips a switch." She looked at Cincinnatus. "Ready for me to open it?"

"Fog ready," Cincinnatus said to Ender. They got their nozzles into position to spray into the opening. "I warn you, it stinks in there," said Cincinnatus. "Now, Lot."

The door opened.

The stink hit them right away and got worse as they moved into the room, which was humid and hot.

A half-dozen rabs were gathered nearby, but they were busy herding the slugs along a metal ramp that sloped gently upward. One of them noticed Cincinnatus and turned to face him, but it didn't leap to the attack. On the contrary, it simply went back and flipped the lever that closed the door again. But by now Cincinnatus, Carlotta, and Ender were all inside the chamber.

No, not chamber. Cavern. Unlike the Formic workers' dormitory, this space had much higher ceilings -- several meters, maybe five. But rising to it or descending from it like stalagmites and stalactites was a lot more of that organic material, only now it was spongy and resilient, and the indentations were far narrower.

The rabs pushed the slugs up the ramp toward the center of the cavern. There was a platform there, with a soft light aimed at it from several directions. The whole room was centered on that space.

The smell got worse the farther they moved along the ramp, but they also got more used to it. The helmets also started cleaning the air inside the visor, which helped a little.

The slugs stuck to the ramp and the rabs clung to the edges of the ramp. The mags kept the children standing upright.

"It's like a throne room," said Carlotta.

"These are egg chambers," said Ender. "This is the Hive Queen's chamber."

But there were no eggs. Instead, the closer they got to the platform at the center, the more the egg chambers were filled with a brown goo with streaks of green. Putrefaction. The slime of decay.

At the end of the ramp, the slugs were pushed onto the platform. But since it was already piled high with slugs, mostly dead ones, the new ones toppled off to the sides, plopping into the slime below the ramp. The slugs swam like eels, but there was nowhere to go, except slime-filled egg chambers.

"They're feeding the Queen," said Ender. "Only she isn't here."

By now Cincinnatus had reached the platform. He waded through slugs toward the center. At the focal point of the beams of light, a low wall kept any of the slugs from getting into a three-meter-wide circle in the exact center.

Within that wall, sprawled and curled across more of the organic material, was the gray, dried-up corpse of a winged creature that had to be at least the size of the Giant.

"She's here all right," said Cincinnatus. "But she isn't hungry."