Shepherd, Kat. Babysitting nightmares #4

"Tanya has always been the unflappably cool and collected one in her friend group. 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 one of the dolls, Tanya realizes it might be the incarnation of a supernatural threat she and her friends have faced before. It's up to Tanya, Maggie, and Rebecca, and Clio to save their town...or the nightmares will take over"--