Ellie is the rudest, most spoilt child her grandma has ever met and it's time that she learnt a lesson! So with a little bit of magic and some help from Jolly the cat, Grandma's going to make sure that Ellie changes her ways. Can Ellie work hard to prove that she can be good? Or is she destined to spend the rest of her days trapped in the body of a mean old cat?

Malorie Blackman was the eighth Children's Laureate and is one of the UK's most popular children's authors. She has won, amongst a raft of other prizes, the Children's Book Award and is the force behind YALC. In 2005 she was honoured with the Eleanor Farjeon Award and in 2008 she received an OBE for services to children's literature. She has been described by The Times as 'a national treasure'. She lives in Kent.