As Halloween approaches Ocracoke Island, Billy, Daniel, Stefanie, and Mark are helped by the ghosts of Blackbeard and the eccentric Mrs. McNemmish when they are held captive by the local scoundrel Zeek, who is searching for a hidden treasure.

In this new leg of a wild adventure, the kids follow the trail of the loot under hot pursuit, a trail that leads halfway around the world and to the bottom of the Atlantic Ocean. But this adventure uncovers a far deeper mystery, which begins with the discovery of a strange sandstone in the secret tunnel on Ocracoke Island.

In this third Blackbeard book, a madcap adventure tale of four teens' journey across the Atlantic and into Westminster Abbey to return some very old pirate loot, the deeper questions surrounding the strange sandstone with mysterious powers are gradually revealed. This novel's masterful weaving of history, intrigue, adventure, the supernatural, and humor has created a book with a broad appeal to readers of many genres.