Ki and Gil will enter this room through that first door at the centre of it. It contains three Orange Bats (which take ten hits to kill), six Black Knights (which take twenty-two hits to kill and have red visors) and one Blue Eye Knight (which takes a total of eighty-two hits to kill and has a blue visor).
The key at the top-left of the room opens the aforementioned first door at the centre of the room, and the key at the top-right of the room opens the second door at the centre of it. (The three Orange Bats, along with the seven Black/Blue Eye Knights, may make them difficult to collect, however).
The aforementioned first door at the centre of the room leads back to Chieftain's Room (Room Pass: Y3Y), and the second door at the centre of the room leads to Pupil's Room (Room Pass: QC7). You should remember the second of these Room Passes, as the first one will be of little use to you.
