Emperor and prince fantasy novels usually involved various magic and mythological elements, some of which might include: 1. Mages: In fantasy novels, mages are often seen. They can use all kinds of magic to fight and solve problems. Emperors and princes might have some special magical abilities such as controlling elements or summoning creatures. Divine Beasts: Divine Beasts are mysterious creatures that usually appear in myths and fantasy novels. The emperor and the princes might receive the help or protection of some divine beasts. 3. Shrine: In fantasy novels, temples are mysterious facilities that are usually used to store and transmit magical energy. Emperors and princes might build their own temples to store magical energy or use special magical tools to transmit magical energy. Apocalypse: Apocalypse is a mysterious document or record that is usually interpreted by mages or other people with special abilities. Emperors and princes might have some apocalyptic powers that could solve some mysterious mysteries or obtain special magical abilities. Treasure: In fantasy novels, treasure is a mysterious item that is usually hidden somewhere. Emperors and princes might obtain some treasures that could be used to obtain special magical abilities or defeat enemies. These are just some of the possible elements. The specific plot of a fantasy novel will vary according to different authors and works.