The Great Fox revealed

Flick is a magician out of tricks. Every attempt to find her father has so far failed. Now the police have accused him of stealing the Crown Jewels - and they want Flick's help to work out how he did it. Flick and her best friend, Charlie, travel to Cornwall, where they believe her father may be hiding in an abandoned museum of magic. There they find master illusionist the Great Fox, also hot on the trail. But something else is hidden at the heart of the museum - the Bell System, the most dangerous magic trick the world has ever seen.