Once upon a time, a princess arrived at a castle during a storm, seeking shelter. The queen wanted to test her true identity, so she placed a tiny pea under twenty mattresses and twenty feather beds. The next morning, the princess complained of a sleepless night, claiming she felt something hard beneath her. The queen was delighted, as only a true princess could be sensitive enough to feel a pea through so many layers. This test proved her royal lineage, and the princess and the prince soon lived happily ever after, celebrating her unique sensitivity.