A hairy mammoth takes a cheeky little baby on a thrilling ride through a moonlit landscape populated by a sabre-toothed tiger, a leaping hare, a laughing hyena and even, just maybe, by a big brown bear. But where are they going? And what has it to do with the baby's scribblings on the cave wall? Created by the critically acclaimed author Julia Donaldson, and Kate Greenaway medal winner Emily Gravett, Cave Baby is a future classic picture book.