Antedulevian

In the Vampire: The Masquerade role-playing game, the Antediluvians are the most ancient of vampires (in excess of 10,000 years old) who founded the thirteen vampire clans, and who have remained in hiding or suspended animation from the time of the flood of Noah. They are the grandchildren of Caine, a mere three generations down from the first vampire. Their return is a sign of the end times known as Gehenna.