The origins of the Shadow Wardens can be traced back to the time of the slave uprising on the prison moon of Lycaeus. Before he was reunited with the XIXth Legion, Corax served as the leader during the slave uprising. Corax's peers insisted he was watched over by a bodyguard lest the overlords or some other rogue element attempt to assassinate him. While he resented this, Corax allowed it, as much for his followers' peace of mind as for his own safety. Having joined his Legion, the bodyguard followed, being formed into an honour guard known informally as the "Shadow Wardens." It was said that they were ever present, though often unseen when their Primarch went to war, and that none could avoid their gaze. Indeed, only one individual was ever able to do so, and that was Corax himself, givin