A mutating plague struck near Frontera, turning its victims into horrifying, murderous mutants. Commander Fraya believed Thulsa was somehow involved. Her aide, Ibar, sent you to investigate. You defeated the Legion of Thulsa, who were using Thulsa's necromantic magic to create the plague.
No sign of Thulsa was found, but you uncovered plans for mass-producing the magic stones that cause the plague.