A defending force of Empyrean (Yalaini) , serving Asheron and trained to defend the Halls of Knorr and the Lyceum. Members were recruited from the ranks of the Order of Heiromancers and of the Medi; they were supposed to be masters of all paths and marshalled for the purpose of maintaining order where corruption would attempt to gain footholds. When the Olthoi invaded, they were the last ones standing and trying to prevent the breakthrough.