Prologue

The rain had stopped an hour ago, but the trees hadn't gotten the message yet. Water still came down in fat, unhurried drops off branches a hundred feet up, landing on the hood of his coat with a heavy thud.

He had been tracking it since dusk.

Not by sight. He gave up relying on that hours ago, when the light started dying, and the trail turned to guesswork. He'd found it the old ways, the ways the old masters insisted worked better than any of the modern equipment issued: a smear of resin at shoulder height where it had brushed a trunk. A depression in the moss too deep and too wide to be deer.

He stopped at the edge of a clearing and let his breathing settle into a steady four-count his instructor had drilled into him twenty years ago. In, hold, out, hold . The clearing held a fallen cedar, and beside it, a shape in the dark, the thing he had walked eleven miles to find.

It was smaller than what the field report suggested. That was usually true. The reports came from people who'd seen it once, from a distance, the kind of sighting that grows a foot taller every time it's retold around a campfire. This one stood maybe six feet when it was upright, though it wasn't upright now. It crouched over something in the leaf litter, head down, and in the stillness he could hear it eating.

He didn't feel what he once had, the first few times. No hammering pulse, no bright animal fear standing his hair on end. There was only the quiet, procedural readiness of someone doing a job they'd done enough times. He unshouldered the rifle. Checked the round out of habit, though he'd already checked it twice. Aconite-loaded, the tip a sharp, compound gray, nothing like the bright brass of ordinary ammunition. It would kill outright. The aconite was only a backup. A little something extra in reserve if he missed his mark.

He raised the rifle.

The thing lifted its head.

For a moment… half a second, or less, its eyes caught what little light the clearing held and threw it back silver, and he had the unwelcome thought that it looked less like a predator interrupted than like a man startled mid-meal, embarrassed to be seen at his worst. Then the half-second passed, and it was simply the shape again.

He fired. Its shoulder exploded.

It went down easier than the last one. That was something, at least. A small mercy, if you believed in the word, which he mostly didn't anymore. He gave it the full ten minutes the protocol specified, standing at the tree line with the rifle still up, watching the great ribs stop their slow work of rising and falling. When he was sure, he came forward.

Up close, the wrongness thinned out. There was a leather cord around its neck, the kind you'd find in any outdoor supply store, and threaded onto it, half-buried in matted fur, an ordinary house key. Cut for an ordinary door. He crouched beside the body for longer than the job required, looking at that key, turning over the two or three questions he'd trained himself a decade ago not to ask.

He radioed it in using the number, not the word. The organization had a great many words for what they did, and he'd found, over the years, that the numbers troubled him less.

"Claimed neutralized. Peninsula sector, designation forty-one. Requesting custodes by zero-four-hundred."

There was static on the other end for a few seconds.

" Confirmatum , seven-six-two. Custodes are en route. Ad domum ." Then the voice on the other end crackled.

He shouldered the rifle and started walking back toward the trail, leaving the target, the key, and the questions about existence exactly where he'd found them.