Destroying the Supply

From publisher blurb: Inoculations are underway and progress is being made against the narcotics syndicates run by the cults. But the syndicates are not lying down in the face of adversity. Maybe it is time to do something about the supply in addition to treating the results. A D&D 5th edition adventure for 1-8 6th level characters. The fourth episode in the Green in Odill Arc.