In short, there’s no quest marker, the cave itself isn’t marked, and Terynne doesn’t mention where the cave is. Not necessarily a ‘bug’, but I had to teleport to him after he made his way into the cave.
hm, there was for sure a quest marker when I tested, type sqv terynnequest and see if any of the alias aren’t filled
I’ll add a mapmarker as well, I just didn’t want it showing up on the map normally until the quest is in progress so it’s a “new” location (even if you can find it)
Ah, looks like I switched the quest marker to the wrong book (the one I added later), will fix
The quest marker would correctly point to the cave on a new game technically, but that alias wouldn’t be filled on an old game since I added that quest marker later on in the process