[Sassy Squatch]

Originally Posted by Buck

Are you sure? Do you come back to her later? I got something from an NPC in there called "Way of Blue" and then moved on and have been to 2 new zones since then without ever fighting her.

Are you on PC or Console? Talking bout that extra sword you have.

Sorry, shouldve clarified I'm on PS4

About the boss

Spoiler!

Once you've killed your third lord of cinder, either Aldrich or Yhorm, you will be instantly teleported to that church. The lady there gives you a basin and you use it on the statue behind her. Initiates a cutscene where the Dancer comes down and you kill her. It opens up Lothric Castle afterwards, which is effectively the climax of the game.