A Stone in My Pocket

Once upon a time, in a small village, there lived a little girl named Tilly. Tilly loved to run and play with her friends, feeling as light as a feather. One day, while playing in the meadow, Tilly found a peculiar stone and decided to keep it in her pocket. As soon as she did, she felt a strange heaviness, as if the stone was more than just a simple rock. Tilly didn't understand why, but she felt a bit sad and couldn't run as fast as before.