章 137: Chapter 34: Sound Killing Magic Knife_3

"Yan" transmitted a wealth of information into Fang Han's sea of consciousness in a single breath, instantly informing him of the various mysteries of the "Sound Killing Magic Knife."

"Blood Refinement Technique, Law Refinement Technique, I do know them well."

Fang Han communicated with his spirit.

Blood Refinement is a superficial method involving blood sacrifice; when encountering Mystical Realm experts, they can easily seize the flying swords and magical treasures. On the other hand, the Law Refinement Technique, which uses mana for sacrifice, is much more stable.

This Sound Killing Magic Knife was initially Law Refinement by the White-haired Demoness Great Asura, so it couldn't be taken away, but it encountered "Yan" and the Netherworld's Holy Water.

The two exchanged information purely through spiritual communication, as quick as lightning. If spoken out loud, they would have probably been killed seven or eight times by others.