Xu Yan was doubtful of the man's claims.
He possessed a portion of Kong Xuan's memories and understood just how difficult it was for a formation to possess a Formation Spirit.
Even during the most glorious days of antiquity, he had never heard of the Formation Sect refining a great formation with a Formation Spirit. Still, since the Great Evolution Sect had faced annihilation, there was some chance it had accomplished this by pouring the strength of the entire sect into its refinement.
If the rumors were true, the enormous Blood-Colored Light Curtain visible outside might indeed be an unrivaled Slaughter Formation Diagram.
Could some supreme powerhouse have engineered the catastrophe that destroyed the sect, intending to use its strength to refine a terrifying Slaughter Formation Diagram?
The thought suddenly flashed through his mind, making him inwardly draw a sharp breath.
That shouldn't be possible.
He soon shook his head again. The idea was simply too absurd.
But when he remembered how the Ancient Demon Race, one of the foremost powers in the ancient Azure Spirit Realm, had been exterminated in an exceedingly short time, uncertainty returned to Xu Yan's eyes. For the first time, he felt afraid of this world.
The Azure Spirit Realm must be hiding an enormous secret!
A sharp light flickered in Xu Yan's eyes.
After suppressing that thought, Xu Yan turned his gaze to the others and noticed glimmers of keen interest in most of their eyes. Like him, they seemed to have let their imaginations run in all manner of directions.
Only when Li Changfeng spoke again were their wandering thoughts drawn back.
"The Slaughter Formations on either side are terrifyingly powerful. Even Golden Core experts will be killed if they touch them. Following this passage through the Mining Area toward the Inner Region