When mysterious fires begin to burn atop the towers of a nearby citadel long ago abandoned by an order of Hellknights, a group of local heroes heads out to investigate. What they discover within the ruined castle and in the dungeons below its foundation will not only reveal an unexpected invasion and a long-forgotten magical wonder, but will propel the heroes forward into a continent-spanning conflict against cultists, slavers, and a fiery draconic devastation that could unleash an Age of Ashes upon the world!