There's something strange happening in Jackson Park!
Wishbone, Joe Talbot, Samantha Kepler, and David Barnes start hanging out with some new kids in a cool clubhouse. Then mysterious things begin to happen. Soon, some of the kids begin to suspect that the clubhouse is haunted. Wishbone and his friends set out to prove that someone is trying to scare them away. The culprit is finally found, but the haunting continues... and the real mystery is just beginning!
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