Title: Banqiao Sanniangzi
First published: 1993
Description: Madam San was a witch.  Whenever someone ate the cakes she sold, they'd soon trun into a donkey.  A clever merchant accidently discovers her evil trick, and secretly switches her cakes.  Madam San eats the wrong one, instantly becoming a donkey herself.
Subjects: Folklore, Juvenile literature
Places: China