使用GPT生成一个简短的小说梗概。
Once upon a time, in a magical kingdom, a young prince discovered a dangerous secret that threatened to destroy his family and his entire kingdom. With the help of a clever young girl and a wise old wizard, the prince sets out on a perilous journey to save his people and uncover the truth behind the mysterious threat. Along the way, they face countless dangers and obstacles, but with determination and bravery, they ultimately triumph over evil and restore peace to the kingdom.