The woman's name was Chief Ash. Noah had learnt a bit about her during her questioning. She was a member of a guild that served the Sailbrird family and provided its structures with guards.
Noah wanted to ask more about those organizations, but Chief Ash never gave him the chance to question her. The line behind him also grew annoyed with his negative answers, so he preferred to cut the conversation short to enter the building.
"Since you have no affiliation whatsoever," Chief Ash announced once her interrogation ended, "I need you to pay the entire fee to enter the library. One hundred Soul Stones will grant you access to most structures belonging to the Sailbrird family for a whole year, but you can pay five of them if you desire a simple visit."
Noah had no idea what she was talking about. The cultivators before him didn't pay to enter the library, so the currency of the Immortal Lands was something that he had yet to see.