A forbidden treasure awakens a centuries-old curse. An unexpected tropical threat. An ally hiding in plain sight. To celebrate Bradley's high school graduation, O'Connor takes the Detest-A-Pest crew to Club Niho'gula on the remote and beautiful Hawaiian island of Lanai. But trouble tends to follow O'Connor everywhere she goes... Strange creatures attack guests in broad daylight. The locals blame the attacks on the Legend of Pepehi Waapa - the boat killer. Someone or some thing has unleashed the curse behind it. Ignoring all warnings, O'Connor vows to find the culprit at any cost. But unseen by most, a clue lies just below the surface. When Sam disappears without a trace, it becomes clear that something larger - more nefarious - is at work. The Detest-A-Pest crew and their new Hawaiian friends realize that they must work together - and fast - if they want any chance of finding Sam alive. Because the evil forces at work could easily send them all to watery graves...