The Thirteenth Tale by Diane Setterfield
We read this for our book club (which we haven't had yet). It's a gothic mystery about the secret, tragic past of a world famous author, Vida Winter. There are some pretty ugly skeletons in this woman's closet, and it gets a little weird for my taste, but overall it was a pretty entertaining book. I couldn't guess the ending, which ties up most of the loose ends pretty nicely and surprisingly. Illegitimate children, insane woman in the attic, devastating fire, twins... lots of juicy stuff to keep you guessing until the very end.