To enhance his strength, Shi Lei decided to begin practicing a new Foundation Establishment Stage spell from the nameless manual within his Spatial Micro-World.
The reason Shi Lei had not cultivated this spell immediately before was that it normally required a very long time to master and was extremely difficult to learn.
To master this spell in a short period, Shi Lei had now thought of a solution: entering the Beast Sect Secret Realm to practice. Because the flow of time within the Beast Sect Secret Realm was much faster than in the outside world, Shi Lei did not yet know whether training inside the Beast Sect Secret Realm would cause any side effects to his body—that remained to be seen. However, in order to track down Murong Yunhai as quickly as possible, Shi Lei felt that taking a slight risk was worth it.
Chapter 421