"A deadly, dangerous, beautiful nightmare." — Chris Whitaker, New York Times bestselling author of We Begin at the End

For readers of Rachel Hawkins and We Were Never Here comes a searing vacation thriller set on a remote island in Thailand following two mysterious women, a charismatic group of expats, and the one murder poised to bring their paradise crashing down.

Welcome to paradise. We hope you survive your stay...

There are three rules to survive a dive at the famous Koh Sang Resort

1 - Breathe normally if something goes wrong.

Scuba diving instructor Cass leads her students out for their first dive off the beautiful coast of Koh Sang, Thailand's world-famous party island. It's supposed to be a life-changing experience, but things quickly spiral out of control...

2 - Always dive with someone you trust.

By the time she's back on the shore, Lucy, one of her students, is dead, another critically injured, and she knows the new and idyllic life she has built herself is about to be smashed to pieces on the rocks.

3 - Don't panic if your oxygen is running out.

Because someone has discovered Cass's dark secret, and on an island as remote as this, there aren't many places to hide. There is a killer waiting, and whoever it is will stop at nothing until Cass's life is ruined and justice is finally served.