The Books of Elsewhere: The Shadows (Jacqueline West)

Olive and her family have just moved into the creepiest house on the block. It feels weird, looks weird, and smells weird. Still, the family (known to have a hefty dose of weird themselves) moves in and begins to settle.

The weird thing is, the walls are covered with paintings...creepy, beautiful, sinister, and classic-looking paintings. Odder still, the paintings are fixed fast to the walls. Before long, Olive discovers that there is way more to this new house of hers...and its paintings...than meets the eye.