The Vanishing by Sophia Tobin
9781471151606 Simon and Schuster
On top of the Yorkshire Moors, in an isolated spot carved out of a barren landscape, lies White Windows, a house of shadows and secrets. Here lives Marcus Twentyman, a hard-drinking but sensitive man, and his sister, the brisk widow, Hester. When runaway Annaleigh first meets the Twentymans, their offer of employment and lodgings seems a blessing.
Only later does she discover the truth. But by then she is already in the middle of a web of darkness and intrigue, where murder seems the only possible means of escape...