Answer:
The Theme of the Boy Called wolf is about Lying.
Step-by-step explanation:
The boy lies about a wolf coming and stealing sheep. After days of people praising him for "defeating" the wolf they stop. When a real wolf comes and steals his baby brother the people dont come to help him. The boy's baby brother is taken and eaten by the wolf. So the lesson of the story is dont tell lies.
Hope this is helpful!!