Chapter 58 - The Forge of Four Worlds (Prince of Undeath - Part 3)

In the chaos ship Shevaithan, the adventurers descend to an ancient island·mote hanging deep within the Abyssal void. Known as the Forge of Four Worlds, it acts as a conduit for elemental and arcane energy-energy that Orcus plans to use to restore Timesus and convert the primordial into one of the undead.

As the party arrives, the Forge has been seized by Orcus's demonic horde but is under attack by a force of raging devils. The adventurers bypass the brunt of this conflict by way of a portal dock, but as they explore the Forge, they find themselves caught up in the three·way battle between demons, devils, and the forgeborn - immortal guardians created to defend the site.

The adventurers have the opportunity to make a deal with the devils as they fight the fiendish invaders, during which they learn that the demons have transported Timesus to an area called the Soul fire Furnace. However, after fighting their way through to the heart of the Forge, they face not Timesus but two lesser fragments of the Black Star. The primordial has already been restored and is traveling to the depths of the Abyssal Nadir where the Heart of the Abyss lies.