Baby-sitters' Haunted House — Ann M. Martin

America's favorite baby-sitters are detectives, too!

Kristy, Claudia, Mary Anne, and Dawn are off to Maine to help take care of Karen and Andrew and the four Menders kids, whose parents stand to inherit the huge seaside house where the whole group will be staying.

The Baby-sitters have seen some spooky houses before, but nothing half as scary as this place: screams in the night, mysterious light from a locked attic, a ghostly figure in white....How can the BSC take care of six kids for ten days, when they aren't sure they'll survive even one night?