Lily is 9. Her sister Daisy is 1. And she's no ordinary baby. Somehow, when she was born, something went rather wrong... and now Daisy is a Witch Baby. Nobody knows this but Lily - she's the only one who can see when Daisy makes the fridge float in the air, or turns people into slugs, or summons up her very stinky dog Waywoof...

The sisters have now settled into their new home and so it's time for Lily to start at her new school. Can she survive being the new girl? Will Daisy be a help or a hindrance...?

Debi Gliori is the author and illustrator of many books for children, including the very popularMr Bearseries. She won the Children's Book Award picture book section, and was shortlisted for the Kate Greenaway Medal in 1997. Her backlist in Doubleday/Corgi includesTell Me Something Happy Before I Go to SleepandThe Very Small.Pure Dead Magic, which introduced the Strega-Borgias, was her first novel. It was followed byPure Dead Wicked,Pure Dead Brilliant,Deep Trouble,Deep WaterandDeep Fear.

Debi lives in Scotland, near Edinburgh.