The Night She Disappeared - Lisa Jewell

It's nearly midnight and you're home alone with only your baby grandson for company. Your daughter and her boyfriend have gone out to a party; the first time they've been out since their son was born. And now you are waiting for them to come home.

But they don't.

The next morning, frantic, you ring your daughter's friends, and you're told that she was last seen heading to a party in an isolated village known as Dark Place ...

An unsolved mystery, family secrets, a boarding school for difficult teenagers, and an unidentified body