"Soul Essence!"
Following Zhou Ping'an's gaze, Tang Yu initially didn't notice but then looked closely and exclaimed in shock.
"This formation is extraordinary; it actually utilizes Soul Essence."
"What is Soul Essence?"
Zhou Ping'an and Bai He looked at each other; they both had never heard of it.
Zhou Ping'an, however, hazily guessed that this was the "Soul Crystal" he had heard of when he was using the Jade Tablet to communicate.
But as for how it came to be and what its uses were, he wasn't too clear.
"This thing, alas..."
Tang Yu's face changed expressions, holding a semi-transparent bead and scrutinizing it for a while before he sighed and said, "According to legend, when the world formed, all things had spirits, but later rumors claimed that the strongest spiritual beings were those of the Human Clan.
The key to this rumor lies in the soul."
