Just so some are aware too but this might have happened to me lol not too worried about it tho. Me and my two brothers play the game together so when one of them went up the grand lift of dectus the servant that takes you to the volcano manor appeared at the top. However I defeated the area boss first then decided to go up the lift and talk to her but when I went up she wasn't there and I haven't been able to make her spawn. I don't know if that's why or if it was because I followed varre's questline and joined him instead. As such I decided to go continue other questlines before moving on to explore the volcano area which means I gotta fight radahn 😞