Beyond the Spheres
On the island of Kalva in Golarion, the native cannibals respect and fear this yellow mold almost as a manifestation of some strange god. The term for it in their language “bikal-a-gualu” roughly translates in common to “body of the king” thus botanists from the civilized nations of Golarion who have studied the mold have taken to calling it Sovereign mold. The mold itself shares a single consciousness allowing it to communicate with other molds telepathically over great distances.
Sovereign mold seeks humanoid hosts, parasitizing them even as it manipulates them into serving whatever strange agenda the mold possesses.