"Reverse Locking Door Formation?"
Shangguan Yun furrowed her brows, a look of confusion on her face.
Previously, it had been the Nine Palaces Illusionary Formation and the Nine Palaces Killing Formation; now, with the Reverse Locking Door Formation that Chen Yang mentioned, it was the third Formation that Shangguan Yun had never heard of.
She truly didn't know what Chen Yang's mind was filled with, how he seemed to know everything, even more capable than the old masters from the Kunlun Sect.
Chen Yang, holding a flashlight in his hand, walked towards the copper mirror and observed it closely, a serious expression on his face; he nodded and said, "Indeed, it is the Reverse Locking Door Formation."
Having said that, he glanced around the walls of the cave and then turned back to look at Shangguan Yun.
Unexpectedly, this glance almost made his nose bleed.
