Afriel was tired. He had been without sleep recently for a long time; how long, he didn't know. His body rhythms had not adjusted as well as Mirny's, and he was prone to fits of depression and irritability that he had to repress with an effort. "The Investors will be back sometime," he said. "Sometime soon."

Mirny was indifferent. "The Investors," she said, and followed the remark with something in the language of the springtails, which he didn't catch. Despite his linguistic training, Afriel had never caught up with her in her use of the springtails' grating jargon. His training was almost a liability; the springtail language had decayed so much that it was a pidgin tongue, without rules or regularity. He knew enough to give them simple orders, and with his partial control of the warriors he had the power to back it up. The springtails were afraid of him, and the two juveniles that Mirny had tamed had developed into fat, overgrown tyrants that freely terrorized their elders. Afriel had been too busy to seriously study the springtails or the other symbiotes. There were too many practical matters at hand.

"If they come too soon, I won't be able to finish my latest study," she said in English.

Afriel pulled off his infrared goggles and knotted them tightly around his neck. "There's a limit, Galina," he said, yawning. "You can only memorize so much data without equipment. We'll just have to wait quietly until we can get back. I hope the Investors aren't shocked when they see me. I lost a fortune with those clothes."

"It's been so dull since the mating swarm was launched. If it weren't for the new growth in the alates' chamber, I'd be bored to death." She pushed greasy hair from her face with both hands. "Are you going to sleep?"

"Yes, if I can."

"You won't come with me? I keep telling you that this new growth is important. I think it's a new caste. It's definitely not an alate. It has eyes like an alate, but it's clinging to the wall."

"It's probably not a Swarm member at all, then," he said tiredly, humoring her. "It's probably a parasite, an alate mimic. Go on and see it, if you want to. I'll be waiting for you."

He heard her leave. Without his infrareds on, the darkness was still not quite total; there was a very faint luminosity from the steaming, growing fungus in the chamber beyond. The stuffed worker replete moved slightly on the wall, rustling and gurgling. He fell asleep.

When he awoke, Mirny had not yet returned. He was not alarmed. First, he visited the original airlock tunnel, where the Investors had first left him. It was irrational -- the Investors always fulfilled their contracts -- but he feared that they would arrive someday, become impatient, and leave without him. The Investors would have to wait, of course. Mirny could keep them occupied in the short time it would take him to hurry to the nursery and rob a developing egg of its living cells. It was best that the egg be as fresh as possible.

Later he ate. He was munching fungus in one of the anterior chambers when Mirny's two tamed springtails found him. "What do you want?" he asked in their language.

"Food-giver no good," the larger one screeched, waving its forelegs in brainless agitation. "Not work, not sleep."

"Not move," the second one said. It added hopefully, "Eat it now?"

Afriel gave them some of his food. They ate it, seemingly more out of habit than real appetite, which alarmed him.

"Take me to her," he told them.

The two springtails scurried off; he followed them easily, adroitly dodging and weaving through the crowds of workers. They led him several miles through the network, to the alates' chamber. There they stopped, confused. "Gone," the large one said.

The chamber was empty. Afriel had never seen it empty before, and it was very unusual for the Swarm to waste so much space. He felt dread. "Follow the food-giver," he said. "Follow the smell."

The springtails snuffled without much enthusiasm along one wall; they knew he had no food and were reluctant to do anything without an immediate reward. At last one of them picked up the scent, or pretended to, and followed it up across the ceiling and into the mouth of a tunnel.

It was hard for Afriel to see much in the abandoned chamber; there was not enough infrared heat. He leapt upward after the springtail.

He heard the roar of a warrior and the springtail's choked-off screech. It came flying from the tunnel's mouth, a spray of clotted fluid bursting from its ruptured head. It tumbled end over end until it hit the far wall with a flaccid crunch. It was already dead.

The second springtail fled at once, screeching with grief and terror. Afriel landed on the lip of the tunnel, sinking into a crouch as his legs soaked up momentum. He could smell the acrid stench of the warrior's anger, a pheromone so thick that even a human could scent it. Dozens of other warriors would group here within minutes, or seconds. Behind the enraged warrior he could hear workers and tunnelers shifting and cementing rock.

He might be able to control one enraged warrior, but never two, or twenty. He launched himself from the chamber wall and out an exit.

He searched for the other springtail -- he felt sure he could recognize it, since it was so much bigger than the others -- but he could not find it. With its keen sense of smell, it could easily avoid him if it wanted to.

Mirny did not return. Uncountable hours passed. He slept again. He returned to the alates' chamber; there were warriors on guard there, warriors that were not interested in food and brandished their immense serrated fangs when he approached. They looked ready to rip him apart; the faint reek of aggressive pheromones hung about the place like a fog. He did not see any symbiotes of any kind on the warriors' bodies. There was one species, a thing like a huge tick, that clung only to warriors, but even the ticks were gone.

He returned to his chambers to wait and think. Mirny's body was not in the garbage pits. Of course, it was possible that something else might have eaten her. Should he extract the remaining pheromone from the spaces in his vein and try to break into the alates' chamber? He suspected that Mirny, or whatever was left of her, was somewhere in the tunnel where the springtail had been killed. He had never explored the tunnel himself. There were thousands of tunnels he had never explored.

He felt paralyzed by indecision and fear. If he was quiet, if he did nothing, the Investors might arrive at any moment. He could tell the Ring Council anything he wanted about Mirny's death; if he had the genetics with him, no one would quibble. He did not love her; he respected her, but not enough to give up his life, or his faction's investment. He had not thought of the Ring Council in a long time, and the thought sobered him. He would have to explain his decision....

He was still in a brown study when he heard a whoosh of air as his living airlock deflated itself. Three warriors had come for him. There was no reek of anger about them. They moved slowly and carefully. He knew better than to try to resist. One of them seized him gently in its massive jaws and carried him off.

It took him to the alates' chamber and into the guarded tunnel. A new, large chamber had been excavated at the end of the tunnel. It was filled almost to bursting by a black-spattered white mass of flesh. In the center of the soft speckled mass were a mouth and two damp, shining eyes, on stalks. Long tendrils like conduits dangled, writhing, from a clumped ridge above the eyes. The tendrils ended in pink, fleshy pluglike clumps.

One of the tendrils had been thrust through Mirny's skull. Her body hung in midair, limp as wax. Her eyes were open, but blind.

Another tendril was plugged into the braincase of a mutated worker. The worker still had the pallid tinge of a larva; it was shrunken and deformed, and its mouth had the wrinkled look of a human mouth. There was a blob like a tongue in the mouth, and white ridges like human teeth. It had no eyes.