Eleven-year-old Ailsa Craig is always late! To everythingher own birth, school and even her own house exploding! Although it is certainly better to be late for that than early ... But then one day, Ailsa discovers the secret of a lifetime: An extra hour in the day. The Magic Hour, which exists in a fantastical, parallel Edinburgh, accessed at twilight. As she explores this extraordinary place where anything seems possible, Ailsa can't believe her luck. Her grades improve and life seems to be on the upeven the popular kids start liking her. But messing with time, can have desperate consequences. When Ailsa discovers that the extra time comes at a terrible cost, she must battle the sinister forces at work and save herself, her parents and the world. What would you do with an extra hour in the day?