I defeated all of the monsters to unlock each of the three mysteries. Two locks disappeared from the big double door, but I can not get rid of the third lock no matter what I try or how many times I repeat this dungeon because the alligator skull obelisk will not give me the option of pressing x to light it up. This is not fair! If the game doesn't let me light the obelisk, how do I find the last monster and go through the door, and complete this dungeon? This is messed up. My membership is paid for.
