Conversation so far:
whats at the end of the yellow brick road
The Yellow brick road in the 1900 children's novel The Wonderful Wizard of Oz leads Dorothy to Emerald City.
who wrote the wonderful wizard of oz
The Wonderful Wizard of Oz is an American children's novel written by author L. Frank Baum.
where else does the yellow brick road appear besides the wizard of oz
The road also appears in the several sequel Oz books such as The Marvelous Land of Oz (1904) and The Patchwork Girl of Oz (1913).
does the wizard of oz film include the road
The road's most notable portrayal is in the classic 1939 MGM musical movie The Wizard of Oz, loosely based on Baum's first Oz book.

Question: which chapter of the book introduces the road
Self-contained rewrite: which chapter of the book wizard of oz introduces the road