In a previous game, I received a (iron?) key when I killed one of the cyclops on Cyclops Coast. Unfortunately, I didn't save before I got killed, and so lost the key. Now I have completely cleared out Cyclops Coast, including the cave at the northern end, but no key. Did I do something wrong? I'm figuring this key may unlock the crypt I found up north recently (don't tell me...), but now I'm stumped as to how to get it again. Help!