Keristrasza

After slaying his consort and luring him into battle with elements of the red dragonflight, Keristrasza is captured by Malygos, who makes her his new consort. Malygos abused her constantly, branding runes into her body and using his powerful magic to bend her will, until she finally went insane. Those who had once aided her now must enter the Nexus to release her from her tortured existence - an unfortunate but necessary end to a sad and tragic tale.

Reference from Meltys