The trilogy begins seven years after the events of the original Septimus Heap series, Alice TodHunter Moon—who insists on being called Tod—has grown up a PathFinder, one of an ancient seafaring tribe. Her mother, who died when Tod was young, had a very different history. She was from a mysterious magykal desert-dwelling family. Tod must choose which of her pasts will help her to survive: PathFinder or Magician. Magyk will allow her to fight like with like, but her PathFinder heritage gives Tod something special - the edge.