Great game but I honestly do not know how to use the key! The game doesn't tell you how and when you try, it only responds with "the door is locked", and the key is CLEARLY in my inventory! Please tell me how because I want to enjoy the rest of this game but the one thing that's in my way is a door all because the game does not tell you how to use the key! Sorry if I sound mad I'm just unable to finish this game unless I know what to do.