one of the little rooms in the end of lost road. not sure the exact that place was
confusing wen i tried to read the walkthru

you go to lost road(not warp gate),and run left and do not turn.then go through the
door.and keep going not turning until you see a little room with a girl a chest a big blue
thing(troll).i didn't kill the troll.i waited until he was a little bit away from the
girl.talk to her and return to guild for reward.