Sophie is a witch and Katy is a witch-hunter, so they really shouldn't be friends! Somehow they brought their families together, but now disaster has struck and Katy's parents are on the run. When Katy suddenly disappears too, it's up to Sophie to find her. She's never had to face an adventure without her best friend before, and this one will be the most dangerous yet! Can she use her magic to bring everyone back home safely?