这个故事来自一本很好看的图画书，作者汤米·狄波拉是美国知名的图画书作家。这个故事里虽然有城堡、武士、大龙，可是和孩子们听过的古代童话完全不同，充满幽默，而且，故事的主人公都爱读书，和喜欢书的小朋友们一样。

This story comes from a very interesting picture book authored by Tommie de Paula, a well-known American picture book writer. Although the story features castles, knight, and a big dragon, it is completely different from the ancient fairy tales children have heard. It's full of humor, and moreover, the main characters in the story all love to read, just like the book-loving children.