Father Sebastiaan is Master Fangsmith; The Sabretooth Clan, Impresario; Endless Night Vampire Ball Author of Vampyre Magick, Sanguinomicon, Black Veils : The Vampire Lexicon and Mysteries of Paris. Joining the community in 1992 he is considered to be one of the most influential figures on modern Vampyrism and vampirism with his contributions in the areas of philosophy, spirituality, fangmaking and nightlife.