The bedrooms section:

Move through this passage. Finish with the guard. Take the health chalice at the far end if you need it.

Enter this hallway and take on the next guard.

Know that the ghost in this bedroom will come for you the moment you enter the hallway.

Wade through the water puddle and finish with the ghost in the bathroom. Otherwise it will come at you the moment you enter the purple room the the west.

Go back here for a full ammo clip.

Kill the guard in this room. Don't get surprised by the Super SS behind the mirror to the south.

Shoot the mirror and the Super SS and enter this little room for the bronze key. Open the secret closet and find a cross.

Continue.