The Poison Dragon is an expansion for both Arcadia Quest, and Arcadia Quest inferno. It all started with the smell. At first, it just seemed like something had gone off, but it soon grew worse and worse until … Rotwailer the deadly Poison Dragon made her epic entrance at the gates of Arcadia! Unless the Heroes of the city can stop fighting among themselves long enough to focus on this vile monster. Arcadia's future doesn't smell good. Arcadia Quest: Poison Dragon is an expansion that extends any campaign in the Arcadia Quest line into a truly epic encounter against the sickening Poison Dragon! Divided into two scenarios, Heroes will first need to compete to bring down the dragon, and then cooperate to ultimately defeat it.