The Dollhouse Murders by Betty Ren Wright. It's about a young girl who finds a beautiful dollhouse in her aunt's attic. But then she discovers the dolls have been moving somehow, and it seems like they're trying to tell her something.

Even now as an adult, I feel creeped out reading it. Though parts of it haven't aged that well. It came out in the 80s, and the girl's sister has a mental disability, but she's described as "brain damaged." Yeah, that would never fly now. Regardless, still a creepy, exciting book! I think my mom got it from a garage sale, and I still have it to this day.