Chapter 237: No Way Out

The essence of the Beast Spirit Codex lay in using both ocular cognition and telepathy together, achieving the ultimate goal of controlling animals through methods like deterrence, subjugation, temptation, and domination.

Of course, there were other uses for the Beast Spirit Codex beyond the control of beasts and animals, such as what Xia Fei was doing now, using his ocular cognition technique to do a thorough inspection of his surroundings.

A bright glow exploded from Xia Fei's black pupils the moment he lifted his eyelids. This was already the most powerful execution of the Beast Spirit Codex's ocular cognition, allowing him to penetrate through the thick walls wherever he looked.