Stranger: The unputdownable psychological thriller with an ending that will blow you away

Under the hot summer sun, she's working her way into your family . . .

Pre-order the gripping new psychological thriller from the Sunday Times bestselling author of Girl Unknown

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Abi and Mark couldn't be prouder of their teenage daughters - but after an awful year, they dearly want to see sweet younger sister Beth with a smile back on her face.

So when she's paired up with glamorous Corinne in a French exchange, it's a relief to see the pair getting on so well.

But as Beth starts to misbehave, they begin to wonder how much they know about the girl they've welcomed into the heart of their family.

They're sure things will improve when they all travel to France for the summer. But under the hot sun passions flare, and tragedy strikes.

And they won't all make it out alive...

Praise for Karen Perry

'Slick, engrossing, twisted and addictive. Domestic crime drama at its best. Highly recommended' Jo Spain

'Truly remarkable...Grips your heart from the first pages and simply never lets go' Jeffery Deaver

'If you're a fan of menacing psychological thrillers that chill to the bone, this book is for you' Sunday Times