Welcome to the irresistible world of Greenglass House, where thirteen-year-old Milo is spending the winter holidays stuck in a house full of strange guests who are not what they seem. There are fresh clues to uncover as friends old and new join in his search for a mysterious map and a famous smuggler's lost haul.

Sure to thrill both fans and newcomers, this smart, suspenseful tale offers ghosts, friendships, and a cast of unforgettable characters, all wrapped up in a cozy mystery.