In Curse Of Strahd, Adrian fled with the rest of his family to the woods beyond the vineyard after the Wizard of Wines was besieged. There, they schemed for days until Pack arrived at Urwin's behest. It did not take long for Adrian to trust this party of strangers, and the adventurers re-took the winery from the druids. Afterwards, they learned that the last of the three stones had been stolen by the druids of Yester Hill, intended to be made into an effigy to Strahd von Zarovich.
Davian denied Adrian from volunteering and decided to accompany the party, as he ultimately felt responsible for losing the last of his family's treasure. Their mission was successful, and they were able to restore life to the soil with the green gemstone; Adrian immediately began the process of shipping to their beleaguered communities, taking on the responsibility of delivering to the Village of Barovia himself.