Castus Candentis was a member of the covenant Insula Sagittarius in the Normandy Tribunal. A strict follower and enforcer of the Hermetic Code, it was Castus' goal to become an Archmage and enforce the rules that govern the Order of Hermes. Castus was particularly interested in the form of Ignem. Castus was later murdered by a member of his own house, a corrupt Quaesitor named Hadrimon.