Mo O'Hara grew up in Pennsylvania, USA, but now lives in south-east London with her husband, children and two cats. Mo began her writing and acting career by touring theatres and schools across the UK working as a storyteller. As well as writing books for children, Mo has written comedy sketches for Radio 4 and performed her own material in London and Edinburgh. Mo and her big brother once brought their own pet goldfish back from the brink of death. Marek Jagucki has been illustrating for over twenty years. His work has appeared in children's books and magazines, educational publications, jigsaws, games and packaging. Most recently Marek has created the black and white illustrations for Macmillan's My Big Fat Zombie Goldfish fiction series, and he is delighted to now be working on them in colour for the picture book. Unfortunately, Marek is allergic to cats, so if Fang scratched him he would probably swell up like a balloon! Marek lives in Harrogate with his wife and young son with whom he is rediscovering the joys of Lego.