What is the subject of fable boy and wolf?

The subject of the fable "The Boy Who Cried Wolf" is the dangers of lying and the loss of trust.

Here's why:

* The boy's repeated lies: The boy's actions of crying wolf when there is no danger are the central theme of the story. His deceitful behavior demonstrates the consequences of lying.

* The villagers' initial trust: The villagers initially believe the boy and rush to help him, showing their trust in him.

* The loss of trust: After the boy's repeated lies, the villagers stop believing him. This loss of trust has disastrous consequences when a real wolf appears.

The fable teaches a valuable lesson about the importance of honesty and the consequences of losing trust.