Stuck in the Raw Fade

[Dashl]

I have finished all the rooms except this one. I have all forms, I see in the room with the viking ship it is supposed to have a hidden door, but I can not find it. Can't find anywhere (looked all over with google) that will help me. Am I bugged? Or is it just something simple and I am stupid?

Nevermind, just got it. I am stupid.

[OniZuka311]

All you have to do is use the spirit door and then you have to fight the purple haired demon girl again

[Pixi]

I'm kinda wondering about this one too. On the map there's a marker that says "Hidden Door" next to the viking ship - right where the mannequin (or whatever) is that you get +1 dexterity from. I've already fought the boss.