One of the most fervent followers of the Unknown faction, Tyrus’ power-armoured form has left untold thousands burning in his wake. The Inquisitor particularly abhors witches of any type. This includes alien psykers, and he readily attacks xenos forces if he suspects they use Warp-powers, or any he suspects of harbouring such deviant beings. Tyrus is fond of ancient trials and ordeals to establish guilt, believing that it is the Emperor that brings final judgement on his captives. He also actively watches over his fellow Inquisitors, and can be as terrifying to those he finds to be heretic as he is to any witch he captures.