A body waits atop an Adirondack mountain.
For New York State Police detective Sarah Barney, the discovery should be the beginning of an investigation. Instead, it is the beginning of a game.
Someone has been watching her.
Someone knows the mountains she climbs, the places she goes, and the people around her. And soon, carefully staged crimes begin drawing Sarah deeper into a hunt designed for an audience of one.
Each new victim comes with a challenge. Each clue starts another clock. And every decision Sarah makes carries a price someone else may have to pay.
The deeper she digs, the more impossible the question becomes:
Is Sarah hunting a killer-or has the killer been hunting her all along?
Across the isolated peaks of the Adirondacks, a deadly battle of wits has begun.
And somewhere in the mountains, someone is waiting for Sarah to make her next move.