The three continued their journey and arrived at the Flowing Sand River. The water in this river was very rapid, and there was a monster in the river who specialized in blocking passing travelers. Sun Wukong and Zhu Bajie jumped into the river and fought fiercely with the monster.
The monster was highly skilled in martial arts and fought evenly with Sun Wukong. Guanyin appeared again and told them that this monster was the General Curtain-Roller, who had been banished to the human world for accidentally breaking a glazed lamp. He had lived in the Flowing Sand River for a long time, suffering greatly.
Guanyin subdued him and let him follow Tang Sanzang to fetch the scriptures. She named him Sha Wujing. Sha Wujing was honest and hardworking, becoming a good helper in the team. Now, the scripture-fetching team was finally complete.