Yun Aoxia let out a "huh" and grabbed the heavy iron and held it in her palm.

"I've seen this thing..." She frowned slightly, as if thinking about where she had seen it: "But I can't remember..."

"It's the key..."

Feng Qingcheng suddenly said in a deep voice: "This piece of heavy iron is the key..."

Mu Chenxiao twisted Shen Tie on his fingertips and frowned slightly: "It's indeed the key...you see..."

He pointed to the dense irregular grooves around the sinking iron: "This is a characteristic key, and it is probably a unique one, because it is difficult for anyone to carve this slot to create the same second groove pit of the same depth..."

Feng Qingcheng glanced at the lamp oil and smiled unconsciously: "The Demon Emperor's method is good. Putting the sinking iron in the lamp oil will not attract other people's special attention, but also protect it from rusting..."

Mu Chenxiao looked at Yun Aoxia with strange eyes: "But the stone room where my grandfather was in seclusion...didn't it mean that once it was closed, it could only be opened from the inside? Why..."

"Leave it to fate..." Yun Aoxia sighed helplessly: "Now we can do it now, we can only leave it to fate..."

...

In Feng Qingcheng's understanding, as the Demon Emperor of the Demon Clan, the place where he practices in seclusion must be a place where heavy troops are guarding, but unexpectedly it is a wilderness.

Looking at the tall stone chamber surrounded by weeds, Mu Chenxiao immediately breathed heavily and held the key in his hand tightly.

Yun Aoxia slowly knelt down in front of the stone gate and kowtowed three times with the two.

"Dad, my daughter came to see her several times, but she didn't see her father. Now things are imminent. We have to disturb my father's retreat and invite her father out of the mountain..."

She raised her hand to take the key from Mu Chenxiao's hand, kowtowed again, and walked to the stone door, put the key into a space at the top of the stone door.

"Click..."

A slight sound made the three people look shocked, and they all looked at the key.

After a click, the key was sunk again, and a continuous click sound came out.

Just as the key stopped rotating, the stone gate suddenly heard a dull sound of axis movement.

A crack was finally opened on one side of the stone gate, and the dull air instantly formed convection and whizzed out.

And it is also mixed with a faint smell of blood and a rotten smell.

This smell appeared at this time, and all three of them knew what this meant.

Yun Aoxia's body trembled very significantly, and she staggered and almost fell down.

Feng Qingcheng supported her and said in a faint voice: "Maybe things are not what we imagined..."

Mu Chenxiao took off the key, lit the torch he brought with him, and took the lead in entering the stone gate.

When the stone door closed again, the smell of rottenness in the air became more and more obvious.

As he walked along, Mu Chenxiao lit the torches on the stone walls on both sides in turn.

Under the light of the fire, the decayed corpses were shocking.

After checking several corpses, Mu Chenxiao said in a deep voice: "Each one should be killed within three moves... It means that the person who attacked the attacker has much more martial arts than them..."
Chapter completed!