"The Frog Prince" is a fairy tale about a princess who loses her golden ball in a well. A frog offers to retrieve it for her, but she must promise to be his friend. Reluctantly, she agrees, but when the frog returns the ball, she refuses to keep her promise. Later, the frog follows the princess to her castle. In some versions, she is disgusted and throws him against a wall, which transforms him into a handsome prince. The story highlights themes of keeping promises and looking beyond appearances to find true worth.