Easiest to read Game Source Code you've ever seen. This compiles
   to an interactive game using Inform7, which I am just starting
   working with.

   ''Cave Entrance''

   The Cobble Crawl is a room. ''You are crawling over cobbles in a
   low passage. There is a dim light at the east end of the
   passage.''

   A wicker cage is here. ''There is a small wicker cage discarded
   nearby.''

   The Debris Room is west of the Crawl. ''You are in a debris room
   filled with stuff washed in from the surface. A low wide passage
   with cobbles becomes plugged with mud and debris here, but an
   awkward canyon leads upward and west. A note on the wall says,
   'Magic word XYZZY'.''

   The black rod is here. ''A three foot black rod with a rusty
   star on one end lies nearby.''

   Above the Debris Room is the Sloping E/W Canyon. West of the
   Canyon is the Orange River Chamber.