The Keerilth are one of the vampiric clans of Valenwood. They have the ability to transform into mist to avoid danger. Movarth Piquine, once a famous vampire hunter, went searching for the Valenwood vampires and managed to kill a member of this clan. In 2E 582, the Keerilth had one of their lairs in a swamp in Greenshade, near the town of Longhaven. It was cleared by the Soulless One and Mel Adrys, a Dunmer vampire hunter, in the same year.