Sha Wujing
Chapter 22, where Sha Wujing is introduced, also provides a geographical boundary, as the river that the travelers cross brings them into a new "continent." Chapters 23–86 take place in the wilderness, and consist of 24 episodes of varying length, each characterised by a different magical monster or evil magician. There are impassably wide rivers, flaming mountains, a kingdom with an all-female population, a lair of seductive spider spirits, and many other scenarios. Throughout the journey, the four disciples have to fend off attacks on their master and teacher Tang Sanzang from various monsters and calamities.