The battle between Mab and Merlin continues and the disastrous love affair between Lancelot and Guinevere causes chaos. Mordred grows up and Morgan and Frik develop their relationship into true love. Naturally as the title suggests it leads to the end of magic but we learn of the thirteen treasures of Britain, one being Idath's horn which becomes more useful over time. Also Merlin uses his heart magic once more turning fairy illusion into reality and even becomes a wizard of pure thought.