The perfect couple. The perfect crime? A summer blockbuster read, this is an unmissable, fast-paced, jaw-dropping thriller.

* THE INTERNATIONAL BESTSELLER AND REESE WITHERSPOON BOOKCLUB 2018 PICK! *

‘Deftly paced, elegantly chilly thriller … a proper page-turner’New York Times

‘A wild, page-turning ride! It’s the perfect beach read!’ Reese Witherspoon

‘Worthy of Hitchcock’ Sunday Times

‘A fascinating moral dilemma’ Gillian McAllister

Erin is a documentary filmmaker on the brink of a professional breakthrough; Mark a handsome investment banker with a bright future. They seem to have it all. But do they?

On a dream honeymoon to the tropical island of Bora Bora, Mark takes Erin scuba diving. Everything is perfect. Until they find something in the water. Something that will change their lives forever.

Erin and Mark decide to keep their discovery a secret. No one else need know; they trust each other implicitly.

But someone else does know. And in situations like these, it is far better to trust no one, not even those closest to you …

‘A thriller for our times’ Louise Candlish, author ofOur House

‘Pure adrenaline: I swallowed this book whole’ Erin Kelly, author of He Said, She Said

‘A stunning debut. Superbly written, clever and gripping’ BA Paris, author of Behind Closed Doors

‘It was the relatability of Erin's voice that set it apart from so many other thrillers as it automatically got me thinking ‘What would I do in her position?’ Caz Frear, author of Sweet Little Lies

‘A delicious page-turner’ New York Post

‘Catherine Steadman bursts onto the thriller scene with this exceptional debut psychological thriller, written in the vein of Paula Hawkins and Gillian Flynn... Deftly plotted and told with lightning-quick pacing... Something in the Water is psychological suspense at its absolute finest' Book Spy