I'm on the Glowing Sea mission. I've entered his cave, but Virgil is nowhere to be found. I've restarted the game. I've done a few other missions and came back days later, and he is not there. I've read that if you kill his guards, that might trigger him being gone, so I went back and walked in there without killing them. He's still not there. This is a game breaking bug. I can't finish the game now. Please tell me someone know's a fix for this so I don't have to refund this game.

If you are on console, stop reading here.

If on PC:

Walk into cave, bring up console and type in:

player.placeatme 6b503