Storyline
Fleeing enemies, Merlin and Arthur take refuge in The Valley of the Fallen Kings. There, the sorcerer Taliesin cures the wounded Arthur and shows Merlin the Crystal Cave, which provides a disturbing vision of the future in which Morgana stabs a sleeping Uther. Come her birthday, Morgana, given a dagger by Arthur, steals into the king's room to kill, secretly followed by Merlin, who uses magic to thwart her. She is temporarily put into a coma, during which time Uther confides in Gaius that she is his natural daughter - a fact of which she is also aware. Gaius believes that Arthur should be told as now Morgana is a legitimate heir to throne and he stands in her way.
