This may come as a shock to some, but I think adventurer mode is bugged. First off, for my first quest, I was sent to slay a minotaur. I fast traveled to its relative locale and found myself out in the open with nothing but a river nearby. Suddenly, the dialogue of said minotaur popped on my screen, introducing himself and advising me to begin preparing for the hereafter. Great. Problem is... no minotaur. Anywhere. Further, when I fast travel back there, it lists a cave as an option, but there's no cave, either. I've scoured the area and there's nothing -- neither cave nor creature.
Oh well, probably a fluke. For my second quest I got referred to a bronze colossus. With trepidation, I traveled to its lair and found a cave! Things were looking up. Until it turns out there's nothing in there, except for a passage down to an expanse of caverns which abruptly ends because they're flooded with water. For my third quest, I needed to go slay a dragon. Again, I found the cave, completely vacant but for another opening to a cave system which I'm confident I'd get hopelessly lost in but nevertheless searched quite thoroughly, with no dragon in sight (I assume it has to be where the compass indicates; once I wander too far, it tells me to head back east, west, what have you).
So where are these creatures? Not in their caves anymore so much as those subterranean worlds where they presumably wander for miles off from where they're supposed to be? How would I find them, then?