THE SHERIFF'S LAST REPORT

Sheriff Arden Calloway sat in her office at 11:47 p.m., staring at a file she was supposed to have closed six weeks ago.

The coffee had gone cold hours ago. The heating system ticked and groaned the way it always did in December. Outside her window, Main Street Choteau was empty, the Christmas lights on the storefronts throwing multicolored reflections on the frozen puddles. She should be home. Her husband had stopped asking why she came home late because he already knew the answer.

The Matthews case.

She'd been a cop for twenty-seven years and she had never failed to close a case in her head. That was the thing people didn't understand about the work — the paperwork closed, the jurisdiction transferred, the file handed to whoever had the authority to take it from you, but the case in your head closed separately, on its own timeline, and it closed when you had an answer. An ending. Something that fit the category of things you already understood about the ways human beings came to grief.

Bron Matthews hadn't given her an answer. The federal agents who had taken her case hadn't given her an answer. They'd given her a national security directive and a flat voice and the particular indifference of people who had already decided that she didn't need to know.

So the case stayed open. In her head, where no one could close it for her.

For six weeks she'd been coming in after dinner, after Martin went to bed, and sitting here in the ticking quiet of the department building and going through the photographs she shouldn't still have. Trying to find the thing she'd missed. The thing that would make it fit somewhere, anywhere, in the twenty-seven years of categories she'd built for human disappearance.

She'd been finding nothing. Until tonight.