I have completed the game on hard, and am now playing it through on very hard. I want to know where the two muse keys are. I have already gotten one (the one behind the giant statue of Atlas). I think the other one was in the Cliffs of Madness, but I can't remember. I didn't play the game for a while after I beat it the first time. Somebody please refresh my memory so I don't overlook the second of these two very precious keys!