The Christmasaurus by Tom Fletcher
The magical, moving and bestselling first children's novel from Tom Fletcher.
Forget everything you thought you knew about the North Pole, and set off on a Christmas Eve adventure with boy named William Trundle, an elf named Snozzletrump, Santa Claus (yes! The real Santa Claus!), a nasty piece of work called the Hunter, and a most unusual dinosaur . . .