URI: 

        ============
        Hyper Cube =
        ============
       
        This is a cube with 4 dimensions.
        It is contributed by SUPER DIMENSION FORTRESS.
        The exit is on the diagonal other vericle 
        of the hyper cube.
        You can crawl along the edges.
        You con go
       
   DIR  right
   DIR  up
   DIR  forward
   DIR  high
       
   DIR  back to the main hohle