From the world's favourite author, David Walliams – ten cautionary tales and a delightfully dreadful cast of characters; all in glorious FULL COLOUR! Are you ready to meet the World's Worst Children? Five beastly boys and five gruesome girls! Like Sofia Sofa – a TV super-fan so stuck to the sofa that she's turning into one! Or Dribbling Drew – a boy whose drool gets him into trouble on a school trip! And not forgetting Blubbering Bertha – a girl who bawls and tells terrible tales! Also featuring a special appearance from fan-favourite Raj! From Number One bestselling author David Walliams comes this collection of wickedly funny, deliciously mischievous tales, illustrated in glorious colour by the artistic genius Tony Ross.