The vampire doll

"Tanya has always been the unflappably cool and collected one in her friend group. So when she begins babysitting for her neighbor's great-niece, she's surprised to find herself super freaked out by the doll collection in the house. They're just toys right? But when her babysitting charge becomes a little too attached to the doll, Tanya realizes the doll might be the incarnation of a supernatural threat Tanya and her friends have faced before"--Back cover.