The Christmasaurus and the Night Before ChristmasA second picture book Christmasaurus story from beloved children's author Tom Fletcher. A second picture book Christmasaurus adventure from beloved children's author Tom Fletcher, full of festive magic. It's the night before Christmas and all Christmasaurus wants to do is help Santa and the elves get ready for the big day. But everything he does goes disastrously wrong. Then, someone special shows him that things don't need to be perfect to be