As an archaeological team cares for the Indian Shell Mounds on Dauphin Island, they discover a strange metal key-in a skeleton's hand! Questions loom about the key's origin and what mysteries it might unlock. Could it be an artifact left behind by Spanish explorers, the first people besides the First Nation People to reside on the island? Or is the skeleton one of the unfortunate Casket Girls who died when the island was called Massacre Island?
After a few days of study, the key demonstrates strange characteristics and one archaeologist, in particular, is concerned that the activity surrounding the key could be paranormal.
Midas and the Gulf Coast Paranormal Team accept the case and head to the island to see for themselves the key, the skeleton, and a strange box that will not unlock.
Are they prepared for the ghosts of Massacre Island? Will the ghosts of the First Nation's people rise up in protest?
