The part of the Halknovian goverment that is in charge of arcane casters.  It only has any power becasue of one of the Darkov daughters.  If a child shows magical prowess they are taken from the home and inducted into the Nyass as a hatching where they get magical traning.  Most parents are all to happy to give up their 'gifted' children.  members of Nyass are concederd part of the Halknovian military.