The Spells of Caer Colur is the seventeenth chapter of The Castle of Llyr. Here in a confrontation with all the major protagonists the villainess reveals her plans, with the theme of unfortunate magical enchantments coming to a head, as does the minor theme of the bumbling accident. This page contains spoilers. If you do not wish to be spoiled, do not read further. File:Achren-and-Eilonwy2.jpg