From the EQ Atlas:
The Tower of Kurn is a place of dread for all of Kunark. It was here that the Iksar Empire of Old took their most hated of enemies to torture and kill. Now all that remains of this legendary, feared place is a crumbling, dilapidated tower and a large dungeon complex that exists beneath the tower. Rumors of vast treasure abound - but few are foolish enough to investigate their validity.
The tower itself used to be four stories high, but the ceiling has collapsed, rendering only the first two and half floors accessible. A trap door in the outer regions of the tower leads to the suterranean dungeon complex, constructed of brick and mortar.
The first floor of the tower includes a great hall with large storage rooms on either side. There is a locked door here that leads into the dungeons. The second floor has served as barracks for the jailers. Only half of the 3rd floor is accessible and consists of a pantry, kitchen, and dining hall.
The frightening dungeon is large and srpawling, consisting of various cells and rooms of torture and execution. Undead of all kinds roam the halls as well as giant spiders and other assorted creatures.
The leader of the Burynai, Bargynn, can be found in the Cave of Wishes - a temple to Innoruuk that contains a large dark gem on display. Bargynn is a powerful shaman and is always attended by necromancer consorts as well as personal warrior guards.
Notable NPC's: Kurn
During the height of the Iksarian Empire of Old, Kurn was one of Venril Sathir's most loyal subjects. Obsessed with torture, Kurn was the perfect choice for an imperial executioner and interrogator. Not wishing to fill the walls of sebilis with the screams and tortured cries of their enemies, Venril ordered the construction of a great tower beyond the city walls where Kurn could perform his grim duties. For decades, Kurn perfected his art on the most hated foes of the Iksarian Empire, with many individual cases lasting years.
Kurn's obsessive nature led to the tower's downfall. One evening, while engaging in the torment of his mosted prized subject, another prisoner escaped and descended into the nethermost depths of the dungeon, which Kurn had been using as a storage place for several obsolete and failed torture devices. From there, the prisoner managed to dig a tunnel, escaping the confines of the nightmarish tower. Unfortunately, the route the prisoner carved opened up a portal for the Burynai Race.
Enraged at their discovery, the Burynai invaded the twoer through the prisoner's tunnel, vowing to destroy the threat they deemed the tower of torture posed to their culture. Within days, the tower was overrun by Burynai necromancers and shamans. Kurn was captured, his execution only stopped when the tribal elder became fascinated with the discovery of his torture infrastructure. The tribal elder ordered the tower sealed and guarded, assuring that any who dared to enter the domain would be swift to die.
His own torture devices used against him, Kurn was subject to the Burynai's experiments. Eventually, over a year later, the Iksar would finally perish, only to be resurrected as an undead servant by the disappointed Burynai elder. To this day, the undead remnants of Kurn lurk in the innermost depths of his dungeon, existing only with the savage will to torment any that enter the confines of his chamber.
Yeah, Kurn never existed as an NPC in the tower itself, but that's the history of the tower.