The Countess of Bohemia's jewels have been stolen by a ghost. Not just any old ghost, but the ghost of Captain Scarletbeard, the scariest pirate who ever lived! Flynn and the crew of the Black Hound descend the murky depths to Davy Jones's Locker, where they uncover a ghoulish plot that threatens the survival of the Seven Seas...The final part of this middle grade trilogy for both boys and girls, with a strong female protagonist, and perfect for fans of Pocket Pirates, The Boy Who Grew Dragons, and The Storey Treehouse books