One day, a big dog named Max felt an enormous pain in his leg. He didn't know what to do, so he went to find his friend, a little cat named Lily. Max urged Lily to help him because the pain was so bad.
Lily thought of a plan to help Max. They went to the park and found a big tree. Lily told Max to hit his leg on the tree to make the pain go away. Max was scared, but he trusted Lily.
Max hit his leg on the tree, and something unexpected happened. The pain went away! But, it was not because of the tree. Max saw a small rock fall out of his shoe. The rock was what made his leg hurt. Max and Lily laughed and played in the park, happy that the pain was gone.
