Mel is a trainee time-travelling angel. She's feisty, witty, streetwise and...dead! Melanie Beeby, just thirteen, has been permanently removed from the late 20th Century by a speeding joy rider. She is elevated to another place, where she attends the Angel Academy. When she is asked to join an elite trouble-shooting group, Angels Unlimited, she is sent on a trial mission to London during the Blitz to help save another young person. Mel breaks the only rule -- she materialises to a human -- yet still manages to come out top of the class! She is given her angel name -- Helix -- and comes up with her perfect teen outfit. 'To me this look says committed, it says now, it says ready for action. I mean, I'm an angel, so I should look divine, right?' Hilarious, fast-moving, other-worldly adventure!