Once upon a time, in a big forest, there was a grumpy old bear. He lived alone in a dark cave. One day, he found a big skull near his home. He did not know what it was, but he thought it was very fun to play with.
One sunny day, a little bird came to the bear's cave. The bird saw the bear playing with the skull and said, "Mr. Bear, why are you so grumpy? You should enjoy the beautiful day outside!" The bear looked at the bird and thought about it. He decided to take the skull and play outside with the bird.
As they played, the bear started to feel happy. He was not grumpy anymore. He enjoyed the sun, the fresh air, and his new friend, the little bird. The bear learned that it is good to share and play with others. From that day on, the bear was not grumpy and enjoyed playing with all his new friends in the forest.
