I've done most of shurugeon castle except i can't get through the two locked doors in the pool reflection room. I've tried all the keys and none work. What's going on? please help

I'm assuming you mean the north doors. They are for the final fight with the demon. Once you have performed the mask ritual, you can use the master key (same one that opens the armory door and go in for the final fight.

Thanks but I also can't get in the armory door ie. the third one as none of the keys work. Which key is it and where shoud it have come from?

Welcome to the board, jasecr!!!

ARMORY:

Shoot the skeleton - an arrow or a spell will do. The skeleton will fall and flip the lever to open the armory gate as he does! :D

Wyv

I guess I was referring to the upper east door in the reflecting pool area. This is the armory. To get to the barracks area, you have to shoot the skeleton. The key which opens all doors in the reflecting pool area is the master key from the kitchen wall. Are you finding this key not working for you when you use it?