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When Tammith and the slave caravan arrived in Delhumide, they were taken through a magical portal that transported them to an undead manufactory hidden underground in the Sunrise Mountains. The atropal Xingax was the overseer of the stronghold, which was where he and Red Wizards of Necromancy continually created a large number of various undead creatures, including types that became extinct centuries earlier and entirely new ones. After Xingax watched Tammith strike a guard, he had her magically transformed into a unique and formidable type of vampire. Xingax also magically bound Tammith to serve the necromancers and their cause against her will.