From the author of the million-copy bestseller The Girl with All the Gifts comes a heart-stopping high-concept thriller with a gripping supernatural twist that you won’t see coming.

She looks like me. She sounds like me. Now she’s trying to take my place.

Liz Kendall wouldn’t hurt a fly. She’s a gentle woman devoted to bringing up her kids in the right way, no matter how hard times get.

But there’s another side to Liz-one which is dark and malicious. A version of her who will do anything to get her way, no matter how extreme or violent.

And when this other side of her takes control, the consequences are devastating.

The only way Liz can save herself and her family is if she can find out where this new alter-ego has come from, and how she can stop it.