Abby Spencer and the Book Bunch love the annual Holiday Sleepover at Evergreen Library. But flickering lights and strange noises have the library staff spooked. Can a librarian spirit really be haunting the library? When ghostly happenings and a newspaper report threaten to cancel the annual sleepover, Abby and the Book Bunch jump into action! Can they solve the mystery in time to save their favorite holiday program? Calico Chapter Books is an imprint of Magic Wagon, a division of ABDO Group. Grades 2-5.