A shocking discovery on a honeymoon in paradise changes the lives of a picture-perfect couple in this taut psychological thrillerfrom the author ofMr. NobodyandThe Disappearing Act.

ITW THRILLER AWARD FINALIST NAMED ONE OF THE BEST BOOKS OF THE YEAR BYGLAMOURANDNEWSWEEK

If you could make one simple choice that would change your life forever, would you?

Erin is a documentary filmmaker on the brink of a professional breakthrough, Mark a handsome investment banker with big plans. Passionately in love, they embark on a dream honeymoon to the tropical island of Bora Bora, where they enjoy the sun, the sand, and each other. Then, while scuba diving in the crystal blue sea, they find something in the water. . . .

Could the life of your dreams be the stuff of nightmares?

Suddenly the