Only nine weeks left, he thought helplessly. Nine weeks.

The universe inhabited by the spacetime-defect fauna was quite unlike that of humans. There was no light, for instance, for the electromagnetic force which governed light’s propagation had yet to decouple from the GUT superforce. But the spacetime-flaw creatures, huddled around their black holes, could “see” by the deep glow of the gravity waves that crisscrossed the growing cosmos.

To them, of course, it had always been this way; to them the sky was beautiful.

The basis of all life in this age was the chemistry of spacetime defects, an interconnected geometric churning of points and lines and planes. Most life-forms were built up of “cells,” tightly interconnected, and very stable. But more complex creatures, built from aggregates of these cells, were not quite so stable. They were capable of variation, one generation to the next.

And where there is variation, selection can operate.

On some of the black-hole “worlds,” fantastic ecologies developed: there were birds with wings of spacetime, and spiders with arms of cosmic string, even fish that swam deep in the twisted hearts of the black holes. “Plants” passively fed on energy flows, like the twisting of space at the event horizons of the black holes, and “animals,” exploiters, fed on those synthesizers in turn — and other predators fed on them. Everywhere there was coevolution, as species adapted together in conflict or cooperation: “plants” and “animals,” “flowers” and “insects,” parasites and hosts, predators and prey. Some of this — the duets of synthesizers and exploiters, for instance — had echoes in the ecologies with which humans were familiar. But there were forms like nothing in human experience.

The creatures of one black hole “world” differed from the inhabitants of another as much as humans would differ from, say, Silver Ghosts. But just as humans and Ghosts were both creatures of baryonic matter who emerged on rocky planets, so the inhabitants of this age, dominated by its own dense physics, had certain features in common.

All life-forms must reproduce. Every parent must store information, a genotype, to pass on to its offspring. From this data is constructed a phenotype, the child’s physical expression of that information — its “body.”

In this crowded young universe the most obvious way to transmit such information was through extended quantum structures. Quantum mechanics allowed for the long-range correlation of particles: once particles had been in contact, they were never truly separated, and would always share information.

Infants were budded, unformed, from parents. But each child was born without a genotype. It was unformed, a blank canvas. A mother would read off her own genotype, and send it to her newborn daughter — by touch, by gravity waves. In the process, depending on the species, the mother’s data might be mixed with that of other “parents.”

But there was a catch. This was a quantum process. The uncertainty principle dictated that it was impossible to clone quantum information: it could be swapped around, but not copied. For the daughter to be born, the mother’s genotype had to be destroyed. Every birth required a death.

To human eyes this would seem tragic; but humans worked on different assumptions. To the spacetime fauna, life was rich and wonderful, and the interlinking of birth and death the most wonderful thing of all.

As consciousness arose, the first songs ever sung centered on the exquisite beauty of necrogenesis.

The senior representative of the Guild of Engineers at Arches Base was called Eliun. He arrived for the review of the failed test flight with two aides. The review was held in a shabby conference room deep in Arches’ Officer Country. Eliun immediately made his way to the head of the table and sat comfortably, hands folded over his belly.

Nilis bustled among his data desks and Virtuals, his movements edgy and nervous. The scratch crew of the lost Earthworm were here: Pirius, Torec, and Darc. All had survived the ordeal intact, save for Commander Darc, whose broken wrist was encased in bright orange med fabric.

Pila took her place beside Pirius. Even after working closely with her Pirius couldn’t read the expression on her beautiful, pinched face. Perhaps she thought that with this latest failure, this embarrassing and awkward project would be terminated at last, and she could return to the comforts of Earth, and her slow, complicated ascent through the ranks of the Coalition civil service.

And, in one corner of the room, a Silver Ghost hovered, a sensor pack strapped to its equatorial line. It was the Ambassador to the Heat Sink. Two blue-helmeted Guardians, who had been assigned to it since Sol system, stood at its side, weapons ever ready. Nobody commented, as if having a Ghost here at a Core base was an everyday event. But the Navy guards posted at the door couldn’t help but stare.

The Guild-master was sleek, only a little plump, and his skin glistened as if he treated it with unguent. He wore a peculiar outfit covered with pockets, insignia, and little readout displays. It turned out to be a stylized skinsuit, of a very archaic design. This commemorated a time when the Engineers had always been the first on the scene in case of some disaster. Those days were long gone, though, and Pirius Red learned that Eliun’s suit wasn’t even functional.

Though he was a master engineer, Eliun didn’t seem at all perturbed to be summoned to a review of a catastrophic engineering failure. But Pirius knew Eliun need defer to nobody here. The Engineers were independent of the Navy and the Green Army, and in particular of Training and Discipline Command, the powerful interservice grouping that ran this base. In fact, the Engineers were independent all the way to the top, to the Grand Conclave of the Coalition itself. And in the comfortable form of Eliun, Project Prime Radiant had found yet another institutional opponent.

Darc glowered at Eliun with undisguised hostility, and even Nilis seemed coldly angry. The atmosphere was tense, and Pirius suspected uneasily they were in for some fireworks.

He was restless himself. Since the test flight two more days had worn away, two days of no progress toward the goal.

Nilis called the meeting briskly to order. “You know why we’re here.” He clapped his hands to call up a plethora of Virtual displays — far too much information, Pirius thought; it was typical of Nilis. “Let’s start with the basics.”

Once again the doomed Earthworm slid past the patient face of the target. Once again it blew apart, three fragile crew blisters careening out of the wreckage only just ahead of the main fireball. Pirius winced from embarrassment at having lost a ship, and at the uncomfortable memory of the breakup itself. Two days later, he was still chipping bits of solidified impact foam off his skinsuit.

Nilis ran the failure again and again, at one-thousandth speed, then one ten-thousandth, then slower still. “You can see that the black-hole cannon did fire, successfully,” he said. “But the structural failure occurred at that moment of firing.” He nodded to Torec, the ship’s engineer.

Torec walked through key moments in Nilis’s Virtuals, picking out freeze-frame images and referring the audience to bits of technical detail. “Firing the black-hole shells places the greatest stress on the ship’s systems as a whole.” To provide a stable platform when the cannon fired, the greenship’s inertial adjustors had to keep the ship anchored in spacetime. But the recoil of these spacetime bullets put far more strain on the adjustors than they had been designed for. “Remember, each shell has the mass of a small mountain. The energy drain is huge, the momentum recoil enormous. And unless the structural balance is exactly right, you get a failure. As in this case.”