Sid Jones and her best friend, Zen, like to play in their local graveyard--but they never expected their ghostly games to suddenly turn real. When Sid accidentally frees the spirit of Ezekiel "Bones" Kittow, a pirate who died nearly three hundred years prior, he asks her to help him find his long-lost treasure so his soul can finally be at rest. The only problem? He can't remember where, or even what, the treasure is.

With nothing but a spectral hand-drawn map to help guide their search, Sid, Bones, Zen, and an annoyingly loud ghost parrot set out to complete their quest. But haunting their every step is Old Scratch, a creepy specter who runs the eerie graveyard prison keeping Bones, his crew, and many other spirits trapped. Old Scratch won't let Bones be free without a fight, and in the end, there may be much more sinister threats to face down. . . .