I, Strahd: The War Against Azalin

For more than a century, Strahd von Zarovich has ruled Barovia with an iron hand, feeding on the blood of his vassals and fearing no one. In all the years of his tortured rule, none have dared defy him.

But now the Vistani have returned to Barovia, bringing with them a warning for the dread Lord of Barovia. One is coming to oppose Strahd, an opponent who may not only bring the existence of the vampire to an end, but may destroy all of Barovia as well.