Aye, this is my first spot that I'm actually "stuck" in. I only did a quick run-through because it was late, collected bunch of those black orbs but I'm on the first level with no idea where to put em. Any help? I tried that door which seems the obvious place to go in the north but just get a screen saying "this door is shut" or some nonsense. The Brady Guide is no help here, it says "explore south then head north and through the door" but of course I cant get in!! argh..