This is really cool. If you don't mind, I think I have a place fir your OC and species in the world I started developing around this prompt. The Thermavox, like another species my sister and I created, spawn from the volcano in the center of the magi-circle where anthros and the like exist.
Normally Thermavox are agressive to the Bloorfs (small creatures made of condensed mana with a simpathy towards the humans ihabiting the world) and humans alike, but Velkern doesn't mind the pressence of these other species. If anything, it's intrigued by them.

Even if you don't want your OC and species involved this way, thanks for participating. I had fun reading about them. :)