Ouyang Changkong let out a long sigh and spoke in a solemn tone.
With a tremendous RUMBLE, a tall and majestic building rose from the ground. The building's exterior was pitch-black, yet it glinted under the moonlight! It was truly astonishing that it could remain in such a state after being buried underground for tens of thousands of years!
It was unknown what material this tall building was constructed from, but it was clear that nothing like it existed anymore!
It resembled a massive castle, its highest point soaring more than three hundred meters above the ground! The spire was like a sharp bone spur, piercing straight into the heavens!
"Who wants to test it with an attack?"
Sikong Yang proposed this to the crowd. According to records, these castles, built during the Ancient Era specifically to fight the Demon Race, could withstand a full-powered blow from a Sword Saint with their outer walls alone!
Back then, many powerful human experts had escaped disaster this way.
