Oromassi

Oromassi was the High Priest of Ancient Aran. An incredibly powerful alchemist whose body and mind alike had, at some point, been distorted by an imperfection in the process he used to ensure his immortality. At some point, created the Eyes of Oromassi to augment/replace his natural sight. Despite his great power, he was eventually locked away to rave forever alone... until he was discovered by Masque in the Central Asian ruins of what was Aran, and brought in chains to the Citadel of Saint Haven. Although Masque did not trust Oromassi, he interrogated him about the secrets that he believed were essential to the triumph of his cause, and the ancient alchemist, wily even in madness, had encouraged his interest in immortality to the best of his ability. Masque gained additional leverage when he managed to acquire (most of) the body of Oromassi's son; Oromassi promised to work for Masque in exchange for his son being restored and a few other concessions, but Masque was still wary of what the magician might do if unbound.

However, in due time, all of Masque's efforts to achieve the desired effect on his own had fallen through, while the Centurions he antagonised cornered him like a rat. In despair, Masque ordered some of his men to fetch the prisoner. The grotesquely deformed Oromassi was led to the Citadel's Inner Sanctum in the middle of a confrontation between Masque and his opponents. This time Masque accepted all of Oromassi's terms and the high priest got to work on the immortality elixir, taking advantage of the lull in fighting brought about by his hideous appearance and highly unnerving voice. By the time he was done, however, Masque was dead and the current wearer of Oromassi's eyes, Else Rommel, had arrived.

Being the reasonable sort, Oromassi politely asked for his property/organs back. Else refused. Oromassi grew understandably agitated and began to attack everyone, both himself and through powerful summoned monsters. He was delayed by a special device conceived by Jacob London and constructed by Herschel Babbage, which both briefly froze everyone around it and slowed his unnatural regeneration factor. Even so, it took multiple Centurions young and old, a political heavyweight of the Liberal Party and "Saint Haven" himself to bring him down.

And then Oromassi was no more, after millenia of mostly maddened, dark and confined existance. But his son had been restored, and managed to escape...