Blake’s father never reported her missing. Now he is dead, in a suspicious car accident, and Detective John Byron has been asked to investigate. But the new arrival has given him another mystery to solve. The family seem desperate to prove she isn’t Blake.... So what are they scared of? And what really happened all those years ago?

ME: Staring down at the sweet baby in my arms, I feel panic instead of love. Because this isn’t the child I gave birth to. My husband whispers to the midwife. They all think I’m going crazy. But the tiny boy in my arms is crying again. I’m certain: he knows I’m not his mummy. And I’ll do whatever it takes to get my son back.

FBI special agent Mercy Kilpatrick has been waiting her whole life for disaster to strike. A prepper since childhood, Mercy grew up living off the land — and off the grid — in rural Eagle’s Nest, Oregon. Until a shocking tragedy tore her family apart and forced her to leave home. Now a predator known as the cave man is targeting the survivalists in her hometown, murdering them in their homes, stealing huge numbers of weapons, and creating federal suspicion of a possible domestic terrorism event.

I am on my way home, thinking only of the quiet, happy evening to come, when I see something completely impossible, and my heart stops dead. I would recognise those gorgeous pale blue eyes anywhere. It’s him. The high-school boyfriend I adored… Until the day he vanished without a trace. I run towards him, my pulse racing. He turns, politely, a puzzled look on that familiar face. ‘I’m sorry,’ he says. ‘Do I know you?’ I need answers. I’m certain he’s lying. I just have to prove it.

We loved our new neighbours straight away. They seemed so normal and friendly. Especially their bubbly teenage daughter Rachel. My partner Aaron and I soon doted on her and our teenage boys took quite a liking to her, too. But that was before I found my sensitive son Jacob comforting Rachel, tears running down her frightened face. They wouldn’t tell me what was wrong, and soon afterwards, Rachel fell from her bedroom window.