From No. 1 bestselling childrens author, David Walliams comes his biggest and most epic adventure yet! Illustrated by the artistic genius Tony Ross. This is the 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 shes determined to discover more. A chance encounter brings Elsie face to face with the creature, and sparks the adventure of a lifetime from London to the heart of the Arctic! Heroes come in all different shapes and sizes in David Walliams biggest and most epic adventure yet!