Roddy Hyde is the daughter of two court wizards, on the King's Progress she lives with the court and with travelling all the time. Presiding over all is the Merlin, a honorary title for the most powerful wizard, a person who is entrusted with the magical health of the Isles of the Blest. Nick Mallory lives on the ordinary earth. He's been to other worlds and wants to explore more. Events happen that bring the two of them together to save several worlds. It's interesting and fun and the characters are well drawn and while they make mistakes it's true to life.