The Taking of Annie Thorne - C.J. Tudor

The haunting new thriller from the Sunday Times bestselling author of The Chalk Man.

It arrived in my inbox just over a month ago. Surprising really that it didn't get shunted straight into junk.

Sender: MSG@hotmail.com

Subject: Annie

'I know what happened to your sister. It's happening again.'

Because when my sister was eight years old, she disappeared. At the time, I thought it was the worst thing that could ever happen. And then she came back.