Ulbus Vespius was the Professor of Light during the Rook Trilogy.[1] He, along with the Professor of Darkness, Tallus Penitax, deserted the evil Guardians of Night and formed an allegiance with the Librarians.[1] He was a member of the Council of Three[1], and later, the Freeglades Council.


  1. 1.0 1.1 1.2 The Last of the Sky Pirates, Chapter 3: The Announcement Ceremony