The Haunted Burial Ground — Francine Pascal

Haunted . . . or tricked?

The Unicorn Club is throwing the best Halloween party Sweet Valley Middle School has ever seen! Lila Fowler's dad has lent the girls a run-down shack in the woods -- a perfectly spooky place for the party.

But as the Unicorns are fixing the shack, strange and scary things happen: Ellen Riteman discovers a human skull, Jessica Wakefield gets lost in a cave full of bats, and a mysterious girl appears out of nowhere to relay ghostly warnings.

Rumors are flying that the shack was built over an ancient Native American burial ground. Could the shack really be haunted? Or are the Unicorns the victims of a terrifying Halloween trick?