An Incubus in King Arthur's Court

Synopsis
The sorceress Morgaine summons Dhiar to Camelot, to request his assistance for her son Mordred. Excited at the prospect of meeting the handsome Mordred, Dhiar goes to help him and finds out that his problem is with a certain knight of the Round Table, the insufferably pure Galahad. After Dhiar reasons out the situation with the clueless Galahad, he leaves it to its natural resolution.