After leaving bonegnasher's lair(i didn't take the "emissary" with me), the emissary showed up in a random encounter, revealing himself to be an imposter. After defeating him, I headed to Old Owl to speak to callum, hoping to tell him about the guy I just defeated. He didn't want to speak to me until I found the real emissary and I realized I was at a dead end. Looking on the internet, I found out that I was supposed to meet the paladin Casavir during the encounter. I was just sitting there wondering who on earth casavir was, cause I didn't see him at the random encounter. Since I have saved well over a dozen times since that random encounter, and I have no back up saves, I'm stuck. I have no way of retriggering that encounter, and yes i've tried. I'm now trying to figure out how to fix this without completely starting the game over.
EDIT: Nevermind