Raven's Revenge — Nikki Tate

When Jessa wins a trip for two to horse camp, she and Cheryl are so excited they can hardly think of anything else. But Camp Singing Waters may not be a blissful getaway. Feuding campers, a lame horse and drafty cabins are bad enough, but should they have listened more carefully to Mrs. Bailey's ominous warnings about Dr. Rainey's experiments with witchcraft? Or, are the late-night ghost stories around the campfire just fuelling their overactive imaginations?