บท 4775: The mountain-protecting formation (3)

Zhao Hai nodded and didn't say anything. Of course, he wouldn't tell Hu Yuan. Magic arrays weren't that simple. If you only learned the magic symbols but didn't understand The Rules of Magic arrays, then it wouldn't work. However, he didn't think that there was any use in telling Hu Yuan about this. Hu Yuan was old, and it was impossible for him to learn magic arrays. He wouldn't understand even if he told him about this. He just had to teach him properly when he was teaching.