The Secret of Shark Cove

Eleven-year-old twins Ted and Monica Brewster didn't fly all the way to Hawaii just to be told they're "too young" for the excitement. While their big brother Biff chases grown-up clues about a kidnapped scientist, the twins stumble onto their own secret - a torn scrap of an old treasure map, a whispered menehune legend, and a mysterious midnight light blinking from a sea cave nobody's supposed to know about. Teamed up with Pua, a sharp-eyed local girl who knows every tide pool, coral reef, and outrigger canoe trail on the island, the twins paddle straight into adventure: sneaking past smugglers, decoding a secret message, riding out a tropical storm, and diving for answers in the warm Pacific surf.
Between luau feasts, shave ice, and hula lessons, danger is never far - because the same men hunting for Dr. Weber are hunting for what's hidden in Shark Cove, too. Can two eleven-year-olds crack the case before the tide - and the bad guys - get there first? A junior detective mystery bursting with Hawaiian color, sibling teamwork, and coral-reef danger, perfect for readers who love island adventure with real stakes.