They walked to the frozen river. The fox said, "Put your tail in the water and wait. The fish will bite!" The wolf followed the fox’s advice, but little did he know, the fox was very clever. As the wolf waited, the water began to freeze around his tail! After a while, the wolf tried to pull his tail out, but it was stuck! The fox laughed and ran away with the basket of berries. Finally, the wolf managed to free himself. He learned a lesson: never trust someone who is too clever with a sly smile.