Cause of the Favored

Most days, Favored Peleguin and Healer Beliam get along well. Sure, priest and physician have their differences of opinion, but their friendship was always based on a sense of respect and mutual tolerance.
Today, Father Peleguin presides over Beliam's execution.
As if watching his friend die were not enough to bear, Father Peleguin fears Beliam may be in the right after all. The death toll rises in Dawnshire, and the church's magical supply of Kes grows thin.
What if faith in the Divine Mother isn't enough to hold back the Rasping Plague?
What if the only way to save the people, is to rely on the same magic Beliam is being executed for using?