The Legend of the Seven Worlds was a very popular online fantasy novel written by Tian Can Tu Dou. The novel was about the intersection of heaven and earth, and the story between spirit beasts and humans. It was divided into seven realms, including the human realm, the ghost realm, the immortal realm, the divine realm, the demon realm, the demon realm, and the ghost realm. The novel has been updated to more than 4000 chapters. If you need the complete collection, you are recommended to search online or buy a physical book. However, it should be noted that the novel is relatively large and may take some time and effort to download or purchase.