Kate Shugak is a native Aleut working as a private investigator in Alaska. She's five foot, one inch tall, carries a scar that runs from ear to ear across her throat, and owns a half-wolf, half-husky dog named Mutt.

Resourceful, strong-willed, defiant, Kate is tougher than your average heroine – and she needs to be to survive the worst the Alaskan wilds can throw at her. Somewhere in twenty million acres of forest and glaciers, a ranger has disappeared: Mark Miller. Missing six weeks.

It's assumed by the National Park Service that Miller has been caught in a snowstorm and frozen to death: the typical fate of those who get lost in this vast and desolate terrain. But as a favour to his congressman father, the FBI send in an investigator: Ken Dahl. Last heard from two weeks and two days ago.

Now it's time to send in a professional. Kate Shugak: light brown eyes, black hair, five foot one with an angry scar from ear to ear. Last seen yesterday...