The Thirteen Treasures : 1 by Michelle Harrison
While visiting her grandmother's house, an old photograph leads Tanya to an unsolved mystery. Fifty years ago a girl vanished in the woods nearby - a girl Tanya's grandmother will not speak of.
Fabian, the caretaker's son, is tormented by the girl's disappearance. His grandfather was the last person to see her alive, and has lived under suspicion ever since. Together, Tanya and Fabian decide to find the truth.
But Tanya has her own secret: the ability to see fairies. And, after disturbing an intruder in the night, it emerges that someone else shares her ability . .
The manor's sinister history is about to repeat itself.