In 2002, an unauthorized sequel to Harry Potter titled "Harry Potter and Bao Zoulong" appeared in China. It principally consisted of the text of The Hobbit but with most names changed to those of Harry Potter characters.
A chapter in the beginning, titled "A Sweet and Sour Rainfall", explains Harry's transformation into a Hobbit.
The book sold a few thousand copies but was quickly discovered. The publisher was fined $3,500.