Most generation ships failed en route — or so it was believed, for many of them simply vanished into the dark. It wasn’t hard to see why. Since most generation ships had been launched at a time when mankind was still better at taking ecologies apart, rather than building and managing them, it wasn’t a surprise that so many expired long before their intended journeys were complete.

There were other hazards. Alia’s own ship had been overtaken by a friendly bunch of FTL travelers, and reconnected to the worlds of mankind. Other ships were not so lucky. Fat, helpless, resource-rich, they had fallen foul of pirates and bandits; there had been terrible tragedies, massacres in the silence between the stars.

But there were other sorts of survivor.

Sometimes, by accident or design, a ship would simply plough on into the dark, never making landfall. Things might go well for centuries — even after the deaths of the original crew, when nobody was left alive who could remember the point of the mission. Much longer than that, though, and things started to drift.

Over millennia languages changed, ethnic compositions drifted. Those few ships that lasted so long became like monasteries, with cowed, constrained crews laboring endlessly over tasks they barely understood, seeking to preserve a purpose set down by unimaginably remote ancestors, all for the benefit of descendants who would not be born for millennia more.

And some ships went on even longer.

Given enough time the brutal scalpel of natural selection cut and shaped the ships’ hapless populations, as always working to make its subject populations fit for their environment. And in the closed spaces of a generation starship there was always one common sacrifice, cut away by that pitiless scalpel: mind.

After all, on such a ship, what did you need a mind for? The ship would manage itself, more or less, or it wouldn’t have made it so far anyhow. With mind, the crew would only get restless, start to wonder what was beyond the walls — or, worse, start to tinker with the plumbing. In the first generation such activity would be against ship’s rules. In the hundredth it would be a sin, a taboo. By the thousandth generation it would be a selection pressure.

This was the origin of the Shipbuilders. Their ships had sailed on, even though the descendants of the first crew had long lost the intelligence that had enabled the ship to be launched in the first place. They maintained their ships’ essential systems, if only by rote. They even grew inventive over such fripperies as external superstructure. Their ships became gaudy, impossibly impractical creations, their purpose being to attract other such crews — and to mate.

And they remembered how to make weapons, for piracy — or rather, since piracy implies a conscious purpose, parasitism. It was necessary. No closed ecology was perfect; any starship required some replenishment. The Shipbuilders simply took what they needed.

“They are brutal,” Alia said to Reath, “because they are mindless. They launch themselves on missiles that just rip through the fabric of their targets, scooping up stuff indiscriminately.”

“And so they shot up your Nord, ” Reath said.

Alia said, “The Shipbuilders are the stuff of nightmares to us.”

“Because they might come out of the dark to attack you at any time. An arbitrary horror.”

“Not just that. The Shipbuilders come from the same place as us. We could have fallen, as they did. They are like us.

Unexpectedly Reath folded Alia in his arms. “No,” he said. “They are not like you. Never think that.”

For a heartbeat she was rigid with shock. Then she softened against his musty robe, and the tears came at last.

She spent the night with Drea, in a small compartment in Reath’s shuttle, orbiting the wreck of the Nord. They shared a bunk. Sometimes they held each other, and sometimes they just lay together, back to back, or nestling.

Alia wasn’t sure if she slept at all. Her head was full of pain, of inchoate longing and guilt and regret. She was still working through her muddled feelings about her mother and brother, the pain of the loss, her guilt over not being able to resolve their final argument. Underlying it all, though, was the simple flesh and blood reality of the loss. A family was never a fixed thing, she thought, but a process. Now that process had been cut short, leaving nothing but a bloody splash on the floor. It wasn’t just her mother who had died, not just a brother, but her family, too.

It seemed strange that such things could happen in a Galaxy governed by a superior form of consciousness. And while the Transcendence agonized over the loss of all the ancestors of mankind, here she was trying to grieve over her own mother. Perhaps, in her anguish and muddled pain, she felt some ghost of the higher, more exquisite regret that had impelled the Transcendence to attempt the Redemption.

And of course, she thought reluctantly, the Transcendence must be cognizant of the disaster, as it was of all of the past. The Transcendence must already, in principle, be seeking to redeem the suffering inflicted on her, as they did every scrap of pain and anguish right back to the dawn of human consciousness.

If she wished, Alia could Witness the Nord’s disaster. She could, through Hypostatic Union, live through it. She could even ride around inside her own mother’s head, for instance, and live out her death. But this was her family, her own mother. Even the idea of delving into the Transcendence and using its superhuman powers to inspect their suffering made her recoil.

And it wouldn’t be enough, she saw immediately. It could never be a true atonement for her, no matter how many times she lived through her mother’s life. For her mother’s suffering would still exist, for all Alia’s minute inspection of it.

This must be the heart of the Transcendence’s dilemma over Redemption, she realized. But if it was not enough to watch the past, not even to live it out through Hypostatic Union, not even if that process were driven to infinity — then something more must be sought.And the Transcendence must know it, too. But what more could there be? Curiosity burned in her, and a vast longing for a relief from her own pain.

Drea stirred in her half-sleep. Shame laced through Alia. In her Transcendental scheming she had once again forgotten her simple humanity. She held her sister, until Drea was still.

At the start of the next day the six of them — the three Campocs, Reath, Alia, and Drea, gathered in Reath’s shuttle, and shared hot drinks.

“Just like old times,” Seer ventured. Nobody responded.

They talked desultorily of the menace of the Shipbuilders.

“It’s hard even to resent them, hard to hate them,” Alia said dully. “Because they have no minds, no purpose. This is just what they do. But the menace is getting worse.”

“It is?”

“This is a time of peace, Reath. Once the Galaxy was full of warships; in those days the Shipbuilders were kept in their place. But now there aren’t so many weapons around.”

“They will have to be dealt with,” Bale said.

Drea said coldly, “Or welcomed into the family of mankind, to become a part of the awakening of the cosmos. Isn’t that how your friend Leropa would put it, Alia?”

Alia studied her sister, shocked. Alia had never seen such a hard expression on her sister’s face. “What’s wrong with you?”

Drea stared at the Campocs; they avoided her eyes. Drea said, “I’ve been doing some thinking. Alia, doesn’t it strike you as strange that just as you swim off into the Transcendence, this horror should be inflicted on the Nord?

“I don’t understand—”

“I don’t believe in coincidences,” Drea said.