So after the first room I tried everything in the Main Hall (apparently that's where you unlock the next area) with the bell, the armour, the sword, the shield, can't do anything to the "wind", window, or wall. I have a feeling the bell does something, but after trying it with the dog there's nothing. I tried commands like "use" "move" "get" and "open" to no effect. Yeah, I'm stumped and starting to think there maybe a bug in this game preventing something from working, or there's something really hidden that I wouldn't find unless I do something random and illogical.