36 Hours: A completely unputdownable crime thriller

You have 36 hours. If you follow the instructions, no one will get hurt...

Detective Kim Stone's blood turns cold when she reads the note. She has 36 hours to follow a trail set by an anonymous challenger. If she fails, people will die.

Kim's gut tells her this is no hoax. She summons her team, and with minutes to spare, they solve the first cryptic clue. It leads to a box hidden deep in the woods, containing a second clue and a tape. As she listens to the recording of a heart-wrenching scre...