However, he doesn't drop any loot.
I checked the known named dragon list for vanilla Skyrim and he doesn't appear there. But neither can I find any mod with a named dragon called Vahlokmir.
I have several creature mods in my game, so I'm unsure where he could have come from. I'm also unsure if I might have killed a quest NPC or something. Anyone heard of this dragon before?
He did give a dragon soul though, but no scales or bones.