Mirrorland

One twin ran. The other vanished. Neither escaped...
DON'T TRUST ANYONE
Cat's twin sister El has disappeared. But there's one thing Cat is sure of: her sister isn't dead. She would have felt it. She would have known.
DON'T TRUST YOUR MEMORIES
To find her sister, Cat must return to their dark, crumbling childhood home and confront the horrors that wait there. Because it's all coming back to Cat now: all the things she has buried, all the secrets she's been running from.
DON'T TRUST THIS STORY...
The closer Cat comes to the truth, the closer to danger she is. Some things are better left in the past...