"Chaos Burying Heaven Coffin, deduce the [Ancient Desolate Demon Scripture]."
Returning to the ground and finding a quiet, secluded spot, Beigong Yu deployed a restriction formation disc. His consciousness then plunged directly into the Chaos Burying Heaven Coffin while instructing it to conceal all auras as he began deducing the [Ancient Desolate Demon Scripture].
Since he was building an invincible army of demonic beasts, he certainly wasn't going to just slap something together carelessly.
Chapter 189