From the world's favourite author, David Walliams - ten cautionary tales and a delightfully dreadful cast of characters; all in a gorgeously gifty FULL COLOUR format!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.