Sixteen year-old Kara Nightingale's ordinary life is suddenly turned upside down when she dies and wakes up in a strange new world with a new career—as a rookie for the Guardian Angel Legion. Kara is pulled into the supernatural, where monkeys drive the elevators, oracles scurry above giant crystal balls, and where demons feed on the souls of mortals. With the help of her Petty Officer and friend, David, Kara hurtles towards an adventure that will change her life forever…