Resident Evil Village - castle: how to escape, piano, where to find the statue masks

How to get Mask of Joy; fight with the third daughter of Dimitrescu

Go to the Upper Hall (level 2F). You will get to this room through the Courtyard. There is a door by the staircase (8) that you can open with the key: Iron Insignia Key.

This way you will enter the Library, where you will fight the last, third daughter of Dimitrescu. Just like last time, you need to let some fresh air inside. Use the golden handle (9) to open a hole in the roof.

When you do that, the daughter will try to close the window, so don't waste any time, approach her and deal damage with your firearm. If she manages to close the roof, turn the handle again and start attacking.

On the other side of the library there is a door to the Hall of Joy, where you will find the Mask of Joy. In this room, you will also unlock the door that leads to the corridor along which you will go down to the Main Hall (1F).