Hailed as &;the heir to Roald Dahl&; by The Spectator, the UK&;s #1 bestselling children&;s author, David Walliams, will have fans of Stuart Gibbs and Gordan Korman in stitches! David Walliams burst on to the American scene with his New York Times bestseller Demon Dentist, and now he&;s bringing his signature humor to this story of a ten-year-old orphan and a 10,000-year-old mammoth. When Elsie, an orphan on the streets of Victorian London, hears about the mysterious Ice Monster&;a woolly mammoth found at the North Pole&;she&;s determined to discover more.... Luckily, a chance encounter brings Elsie face to face with the creature, sparking the adventure of a lifetime&;from London to the heart of the Arctic!