Other Side of the Wall

About the Book:
When Sylvia looks out her bedroom window and sees a child face down in the pond next door, she races into her neighbour’s garden. But the pond is empty, and no-one is answering the door.
Wondering if night feeds and sleep deprivation are getting to her, she puts it out of her mind - until a week later, when she hears the sound of a man crying through her bedroom wall.
Sam is the man living next door to Sylvia. He hoped the new house would fix everything, but it’s off to a bad start. And for him, it’s about to get unimaginably worse.
Kate is Sam’s wife. She’s fed up with his late nights at work, until a letter brings everything crashing down around her.
A local child goes missing, then Sylvia’s own daughter wakes one night screaming that there’s a man in her room. Sylvia’s husband insists it’s all in her mind, but she is increasingly certain it’s not - there’s something very wrong on the other side of the wall.