Chu Luochan brought Lin Fei to a deep mountain cave thousands of kilometers away.
The surrounding mountains were deserted, but the environment was quite pleasant, filled with the sounds of birds, fragrant flowers, lush vegetation, and gurgling clear springs.
The outside of the cave was guarded by a very advanced isolation and protective array. At least with Lin Fei's current proficiency in array formations, he could not break it.
Chapter 431