============
        Hyper Cube =
        ============
        
        You are crawling along the edge with caution.
        If you slip, you will be lost in HYPERSPACE forever.
        At last you reach the next vertex.
        There is a wheele on the wall. 
        You can go
 (DIR)  backward
 (DIR)  right
 (DIR)  low
 (DIR)  up
 (DIR)  examine wheel