Hall of Infinite Doors

You enter the world of white armed only with a marker. Most stick people you meet are very nice, even if their personalities are a little two-dimensional. This is pretty much a world of the middle ages, with stick horses, stick carts, stick huts and stick soldiers. Finally, after much asking and many shivered looks, you are told that the leader lives in a dark and magic castle way on the other side of the paper.