The adventurers destroy an infestation of strange mushroom creatures but days later one of the PCs develops an odd sickness impervious to traditional cures. Within weeks mushrooms sprout from the afflicted's back, and far stranger, the sporecaps speak. The 'umamish' claim to be helpful symbiotic fungus, merely hoping to hitch a ride until they reach maturity—and their host feels stronger, more resilient, better than ever before. However the umamish are anything but benevolent, slowly gaining control of the PC's mind and releasing more spores to infect others. To be cured the party needs to track down a recluse rumored to know the cure for these unwanted fungal stowaways! This supplementary adventure for 4–5 PCs is best used in an ongoing campaign (introduced at 3rd level and ending by 6th level) but can be contained into a shorter quest for 6th level PCs.
Cunningly designed by Andrew Engelbrite, illustrated by Jeffrey Chen, and featuring the cartography of Dyson Logos.