Erika learns this from a mysterious stranger named Airic O 'Fory. He warns her and her future companions of another shadow crusade, an approaching threat that took countless lives in Solitas 24 years ago. Only the descendants of the clans of elements have the power to avert it - Descendants like Erika. And so she embarks on a journey into the unknown, which will lead her through all of Solitas and perhaps even beyond.