There was more disruption here. Blood. Tools and containers in disarray. Whatever had happened, it had happened here. No, it had started here. And it had ended behind that locked door.

It took two hours with a torch and prying tools from the machine shop to cut through the hatch to engineering. With the hydraulics compromised, she had to crank it open by hand. A gust of warm wet air blew out, carrying a hospital scent without the antiseptic. A coppery, nauseating smell. The torture chamber, then. Her friends would be inside, beaten or cut to pieces. Julie hefted her wrench and prepared to bust open at least one head before they killed her. She floated down.

The engineering deck was huge, vaulted like a cathedral. The fusion reactor dominated the central space. Something was wrong with it. Where she expected to see readouts, shielding, and monitors, a layer of something like mud seemed to flow over the reactor core. Slowly, Julie floated toward it, one hand still on the ladder. The strange smell became overpowering.

The mud caked around the reactor had structure to it like nothing she’d seen before. Tubes ran through it like veins or airways. Parts of it pulsed. Not mud, then.

Flesh.

An outcropping of the thing shifted toward her. Compared to the whole, it seemed no larger than a toe, a little finger. It was Captain Darren’s head.

“Help me,” it said.

Chapter One: Holden

A hundred and fifty years before, when the parochial disagreements between Earth and Mars had been on the verge of war, the Belt had been a far horizon of tremendous mineral wealth beyond viable economic reach, and the outer planets had been beyond even the most unrealistic corporate dream. Then Solomon Epstein had built his little modified fusion drive, popped it on the back of his three-man yacht, and turned it on. With a good scope, you could still see his ship going at a marginal percentage of the speed of light, heading out into the big empty. The best, longest funeral in the history of mankind. Fortunately, he’d left the plans on his home computer. The Epstein Drive hadn’t given humanity the stars, but it had delivered the planets.

Three-quarters of a kilometer long, a quarter of a kilometer wide—roughly shaped like a fire hydrant—and mostly empty space inside, the Canterbury was a retooled colony transport. Once, it had been packed with people, supplies, schematics, machines, environment bubbles, and hope. Just under twenty million people lived on the moons of Saturn now. The Canterbury had hauled nearly a million of their ancestors there. Forty-five million on the moons of Jupiter. One moon of Uranus sported five thousand, the farthest outpost of human civilization, at least until the Mormons finished their generation ship and headed for the stars and freedom from procreation restrictions.

And then there was the Belt.