Zenon
Zenon was the 58th Lord Sorcerer of the Council of Mages for the city of Quellburn in the Shadow World history. He was seduced into being corrupted with the Unlife by the high priest of the Cult of the Snow Lion, aiding their secret order in the utter annihilation of the kingdom of Quellbourne. Zenon spent years planning his alliances with the trolls of the Kaldsfang mountains, the Ice Kral of the northern coast of the Seolfar Strake, his assortment of monstrous experiments, and pacts with ever more powerful Demons of the Pales. When his plan was finally executed in 5840 Third Era he opened portals to bypass the physical and magical defenses of the citadel, with the hordes plundering and destroying the coastal villages.
Unfortunately, Zenon was hit with a Spell of Amnesia True by the 66th Mystic Alladyre, which wiped out his memory of his role in the fall of Quellburn. Alladyre was soon slain by a Demon of the Fourth Pale. Zenon was still alive, wandering the ruined city seeking to return his memory, two centuries later in 6050 Third Era. Some refugees fled south and hid in a cave, which turned out to have a giant spider. They would give it sacrifices and eventually formed the Spider Temple.
In the fallout of the invasion his hordes sought out destruction of their own accord. The trolls spread throughout the forested regions north of the mountains, and the threks and manticores which Zenon had made went into the northern hills. His tergons from the High Plateau would spread west into the Coastal Cliffs. The Ice Kral raided these coasts and would end up settling on the island in the middle of the bay. By the time Kelfour's Landing was founded, the old kingdom was mostly wiped out. The lands were thus ripe with resources to be exploited, as the prior populations had been mostly destroyed. While Quellburn was founded by refugees of Zor, Zenon was clearly not human from his longevity.
Behind The Scenes
The lower level of the Coastal Cliffs is ruined from the invasions in the fall of Quellbourne from two centuries ago. This was established in a note that was found when the area was released in 1991, as reported in the Kelfour's Edition for that month. There was a note from Zenon in the box from which the black reaver was released, discovered at the tower in the northwestern corner of Danjirland (which would belong to the cult behind the Council of Light.) Zenon was also known to have had a magical labyrinth that wandered the countryside as an errant portal. The ruined city of Quellburn was only accessible as a quest area in the I.C.E. Age, and Zenon never existed in the modern history.