Once upon a time, in a small village, there lived a young boy named Peter. He was in charge of taking care of his grandfather's sheep which were grazing in the meadow. One day, while he was playing his flute, he saw a wolf lurking nearby. Knowing that wolves can attack the sheep, he quickly ran to warn his grandfather and the villagers.

However, no one believed him, thinking that he was just playing a prank. The next day, when he saw the wolf again, he tried to warn the villagers again, but they still didn't believe him. The wolf continued to come closer and closer to the village, and one day it finally attacked the sheep.

This time, the villagers realized that Peter was telling the truth and they all came running to help. They chased the wolf away and saved the sheep. From then on, the villagers learned to trust Peter and his warnings.

The moral of the story is that it is important to listen to the warnings of others, even if they seem unlikely or unbelievable at first.