Volcano Manor is an optional area in Elden Ring, located on Mt. Gelmir, home to some interesting quests and characters.
This includes Volcano Manor’s proprietress Lady Tanith and her intimidating Crucible Knight bodyguard, and if you’ve taken a shine to recurring FromSoftware character Patches, you’ll also want to come here at some point.
More importantly, Volcano Manor is home to one of Elden Ring’s demi-gods Praetor Rykard, even if, like Starscourge Radhan, you don’t have to defeat him in order to progress the main story.