| Category | Heroes |
| Region | Tribe Steppes |
| Race | Night Hag |
| Gender | female |
| Title | Queen |
| Alignment | neutral evil |
| Deity | none |
| Born | 6 Brightstar 955 HE |
An exile of the Gehenna System, the nigh hag Thryunkian aided Graz'zt and Demogorgon in the murder of Orcus. On Orcus's re-birth as an undead, minions were dispatched to hunt down Thryunkian. She was saved by trading her true name to a mortal wizard named Flay. In return for information on dark rites and the true names of others, she was released from Flay's bondage. She made her new home in the cold fens of Ilorath.
Thryunkian helped Flay for nearly four decades; all the while searching for a way to get rid of him. A break came when she learned the workings of Flay's Prismatic Cells at Tridrak. The most powerful to be freed was a death slaad named Groggumblus. Together, the two captured Flay, then slowly tore him to pieces.