Above the nine heavens, amid the lingering clouds and mists, a giant dragon's shadow is winding and circling! Beyond the shadow of the giant dragon, there is darkness, lightning and thunder, like the claws of the devil. When you hear it faintly, it seems that you can still hear the sound of ghosts crying! Here is the dragon seal that has protected China for thousands of years!
This book is not a book, what is it?