In a serene forest, there lived a clever panda named Pandy. He was known for his quick wit and problem-solving skills. His black and white coat always gleamed in the sunlight, and his keen eyes sparkled with curiosity.

One sunny afternoon, Pandy was strolling through the forest when he heard a loud, sorrowful trumpet. He hurried towards the sound, and to his surprise, found a gigantic elephant named Elly, trapped in a muddy pit.

Elly looked hopeless and scared. Pandy wanted to help her, but he was unsure how to measure the depth of the pit without falling in himself. He sat near the pit, deep in thought.

As Pandy pondered, he remembered the story of Cao Chong, who had weighed an elephant using the principles of displacement. He wondered if he could apply the same principle to measure the depth of the pit.

Pandy decided to test his idea. He collected pebbles and began dropping them into the pit, carefully listening to how long it took for each one to hit the bottom.

He noticed that the bigger pebbles took longer to reach the bottom. He then estimated the pit's depth based on the time taken by the largest pebble. With this new information, Pandy began to devise a plan.

Pandy realized he needed more help. He rushed to the heart of the forest and gathered his friends: a family of beavers known for their exceptional dam-building skills.

Pandy explained the situation to the beavers and shared his plan. They eagerly agreed to help and followed Pandy back to the pit where Elly was trapped.

Together, they started to construct a ramp using branches and mud. Pandy directed the beavers, ensuring the ramp was sturdy and safe for Elly to climb.

It took them a few hours, but finally, the ramp was ready. Pandy called out to Elly, encouraging her to step onto the ramp and make her way out of the pit.

With a little hesitation, Elly started moving. Each step was slow and careful, but she made steady progress. Pandy and the beavers cheered her on.

Finally, with a triumphant trumpet, Elly stepped out of the pit. She was free! She thanked Pandy and the beavers for their kindness and ingenuity.

Pandy was happy to see Elly safe. He reminded his friends about the importance of helping others and the power of creative thinking.

That night, the forest buzzed with tales of Pandy’s cleverness. And from that day forward, Elly made sure to avoid muddy pits, and Pandy became an even greater legend in the forest.

Pandy's story teaches us that no challenge is too big when we use our intelligence and work together. After all, even the smallest pebble can create ripples of change.