True North (The Girl in the Box/Out of the Box Universe #42; Out of the Box #32)

It's been a rough few months for Sienna Nealon. She's left the FBI behind and rejoined her friends at her own firm, the State of Minnesota has turned loose its law enforcement apparatus on her, and her boyfriend has left her.

What's a girl to do?

How about go on vacation with her friends to the north woods of Minnesota? But not all is as it seems when they arrive; quickly it becomes apparent that someone has been hiding secrets. And those secrets just might cost Sienna and her friends everything...