Petyr

The Thulian Cult found Petyr sleeping in the deep passages of a forgotten cave in the Crystalspine Reaches. The cultists chiseled him out from a stalactite that had formed around his hanging body. He seemed grateful for the chance to spread his wings again. Cyn communicates with Petyr in the ancient languages, but he has no desire to learn modern speech. Petyr is a primitive being, and even now spends most of his time asleep. His three or four waking hours each day are spent hunting or watching what the other cultists are up to. When pressed, Petyr displays a primal ferocity that is unmatched by any other member of the cult.

Soon, the cult began noticing that having Petyr nearby had strange effects on other dragons. These effects are not well understood, and are actively being studied.