Fight the enemies in this room...

...and in this room. Enemies in both rooms will be alarmed when you open fire. Find more missiles and health in both rooms. Locate the secret door marked by the painting on the northern wall of this room. Get the gold key.

Go through this room where you find the captured girl. Deal with the ghosts.

Open the locked (silver) door to the veranda, go backwards and alarm the armour preferably with a missile, switch to the axe, the ghost from the outside is coming. Then collect one cross at a time...

...for the two death chalices in this room. Deal with the guard first.

Open the door to the east. Hit the Super Officer ahead before he hits you.

Continue.