Number one bestselling author David Walliams presents this explosively funny space adventure for children of 3 and up. Illustrated by artistic genius Tony Ross and hilariously read by the author himself. Warning: very silly sound-effects included! Two big hippos. One ENORMOUS dream. Who can make it to the moon first? 3 ...2 ...1 ...BLAST OFF! Introducing a wonderfully charming and funny new picture book from two superstars!