The Return of Ishtar/Barrel Vault


 * Ki and Gil will enter this room through either the door at the top-left of it (if they had came from Jailer Chamber) or the one at the top-right of it (if they came from Barracks). It contains one Mage, one Druid, two Golden Hyper Knights (which take 1300 hits) and four Black Lizardmen (which take 602).
 * The second key at the centre of the room opens the aforementioned door at the top-right of the room, and the third third key at the centre of the room opens the aforementioned door at the top-left of the room. Neither of the other two keys (which are only there to confuse room's first-time visitors) do.
 * The aforementioned door at the top-right of the room leads back to Barracks (Room Pass: 9V9 - same as Temple of Chaos), and the aforementioned door at the top-left of the room leads back to Jailer Chamber (Room Pass: SF9 - same as Chapel of Evil). You should not remember either of these...