When Yannick Azizi put out the call to kill orcs and investigate the Stone Tooth, Lazarus was incredibly eager to accept the task, and joined Bialwa Norgalt, Morgran Frostbeard-Axethrower, and Wurgym Caurakril in Forge Of Fury. While ridding his home of those who occupied it, he encountered Lazarus Mk. I, who in a sense was his younger brother. He took this poorly-programmed Lazarus with him, now reduced to just a head, and began to develop a relationship with him despite his inability to see Mk. II as anything other than an orc. The adventurers eventually defeated the undead guarding Durgeddin's body and slaying the Ghost of Arundil that stalked the halls, assisted Lazarus with a bit more of his memory.
Through the quest, their party found extreme riches and magic items; though Lazarus cared little for the coin, he felt whole when wielding the weapons forged by Durgeddin. They eventually made their way below to the Black Lake, which was inhabited by the young Black Dragon Zyrmintyl. Their party of dwarves planned to slay the dragon and take her horde, but found themselves overwhelmed by her power. In the battle, Lazarus Mk. I was slain Bialwa eventually parleyed with the dragon, giving away all of their valuables, and Lazarus left Khundrukar poorer than he started, though made sure to keep the acid-ridden head of his brother.
On returning to Khazalet, their group mostly split up, but Bialwa identified that Lazarus Mk. I resembled the Epochal Artifact stored in her home kingdom of Brazenthrone. With no other leads, the two eventually decided to travel together back to her homeland to investigate the Mantle of the First Forge.