Monsters of Thay
Red Wizard Zerthas
Red Wizard rival of Oshar. An elderly wizard who has worked hard to convince Thay to accept summoning as the superior way to enhance the Thayan army. He threw an assortment of devils and demons at the party at various times, but most recently helped them sneak into the Ziggurat in Thay’s former capital (Eltabar) in order to put an end to Oshar.