The Echelon

The Mothfolk of Orogast take few pupils. Their most successful "collegiate society" is a mystic order of Theri led by Unknown, a knight-cum-sorcerer. Hailing from Orchalannon and having become disillusioned with The Reign of Eld and monarchism in general, he formed a mystic order of six sorcerers bound to one another by the "Rite of Undertaking". They are working to create an army of undead that would put an end to hereditary rule in the Six Kingdoms (reputations page).

They have conspired to conscript soldiers from Reux, binding the witless villagers as soldiers and servants. The rite transforms human souls into demonic spirits, then binds them to the bones of the decedent's body. In the process, runes of binding are added which constrict their behavior, such that the order and their converted underlings cannot betray the cause. 

With Orogast as their alma mater, the six founding members of the order excel in illusions, thaumaturgy, necromancy, and demonology.