Ratchet the Reluctant Witch

Be careful what you wish for. Fourteen-year-old Rachel Hollingsworth ('that's Ratchet, you eejit') is sick of living in foster care. Desperate for her independence, she runs away. But unaware she's a witch, she accidentally travels back in time to the notorious Essex witch trials, along with her social worker-witch mentor Bryony and Oscar the cat. They all face execution, but their powers are fail...