Razing of Camelot

The city of Camelot was razed by the dragon Kilgharrah.

The dragon began attacking the city shortly after it was secretly released by Merlin, killing innocent men, women and children, and destroyed sections of the castle itself. In an effort to stop the attacks, Gaius suggested that King Uther Pendragon seek out the last surviving dragonlord, Balinor, but Uther refused. Arthur Pendragon instead opted to track down the dragonlord against his father's wishes, and Merlin accompanied him after Gaius admitted that Balinor was, in fact, Merlin's own father.

Arthur and Merlin found Balinor and managed to persuade him to return to Camelot, but the group was attacked on the return trip, and Balinor was killed in the fighting. Merlin and Arthur returned to Camelot, and Arthur launched one final stand against Kilgharrah, riding out with Merlin and a battalion of twelve knights. After the knights were decimated by the dragon, Merlin summoned the powers of his dragonlord heritage and commanded Kilgharrah to leave Albion and never return. The dragon obeyed (The Last Dragonlord).