Cordelia of the Cataclysm

"The storm was looming from the West upon the Dawn Islands when the party realized their mistake. Pulled into a vengeance centuries in the making, they had unknowingly opened the way to the throne of the Dragon Empress - and paralyzed by their own hesitation, failed in preventing the death of an innocent child.
Daeva, daughter of Cordelia, was murdered. And the pain of her mother was about to come crashing down upon the Dawn Islands and upon those who, ignorant of their role, became accomplices in her murder."