"Rumble!"
Massive thunderclouds gathered along the Yellow River, bolts of lightning streaking across the sky.
"What's going on?"
Sui Ren Shi, who had just stepped out of the Great Hall, halted and looked up at the sky.
You Chao Shi and Zi Yi Shi were also alarmed by the thunderclouds and came to Sui Ren Shi's side.
"Big Brother, I heard from the Witch Clan that whenever something defying heaven appears in the Prehistoric Era, tribulation clouds will form."
The Prehistoric Era had not yet entered the age when Haotian controlled the Heavenly Court. Without the Heavenly Rules to restrain it, ordinary breakthroughs would not trigger tribulation clouds.
Only when Innate Divine Beings had taken form in the distant past had the Heavenly Dao sent down trials. In all these years, such a sight had scarcely appeared in the Prehistoric Era.
"Could some Spiritual Treasure of our Human Race have emerged and alarmed the Heavenly Dao?" Zi Yi Shi muttered.
"No, look over there. Isn't that the direction where Xiao is in seclusion?"
You Chao Shi pointed toward the center of the tribulation clouds and shouted. Nearly everyone in the Human Race knew where Xiao was cultivating in seclusion.
Could Xiao have created something that defied heaven?
"Big brother, quickly order the clan members to evacuate. The more living beings beneath the tribulation clouds, the stronger the lightning will become. It could end up harming Xiao."
"Right, right, right. I nearly forgot. Move, quickly!"
Sui Ren Shi slapped his forehead. The matter with the Witch Clan had enraged him so much that he had forgotten even this bit of common sense.
The three Human Ancestors hurriedly gathered the clan members and led them away from the Yellow River banks. Yet as the tribulation clouds grew larger and larger, the thunderclouds