"This is Yayi River!" Zhu Donggao glanced around at the three of them and said affirmatively.

"If we only knew about this river, we wouldn't be able to find the Remnant Cave, this river is too long, and it still winds around the valley. Fortunately, there is also a Katajiao Mountain. Hong Yingcui said happily.

"So what are you waiting for? Gong Wankun frowned and said impatiently.

After another hour of flight, they have come to the upper reaches of the Yayi River.

"This is Pianjiao Mountain!" Zhu Donggao took out the map and compared it, and said slowly.

Between the Pianjiao Mountains and the Yayi River, this search range is already very small. It didn't take the four of them an hour to identify a suspicious location, which was likely to be the location of the Cave Mansion.

This site is on the stone wall of Pianjiao Mountain, which was originally very flat, but there is an abrupt extra stone slab, which is very close to the water surface, and looks like a table top is embedded in the stone wall, and it is especially suspicious that the material of this stone slab is different from the material of the stone wall, and it is not a stone.

"Is this for fishing?" asked Gong Wankun.

"This stone slab is probably the key to entering the cave. Hong Yingcui finished unsure and looked at Zhu Donggao. She didn't expect Jin Yu to say anything, after all, he was still in the Qi refining period, even if his strength was good, his knowledge was definitely limited, and it was impossible for him to be proficient in the art of the formation mechanism at the same time.

"This slate is supposed to be a trap, it's meant to be touched. As soon as we touch this stone slab, the defensive formation in the cave will be opened. Zhu Dong said with a deep groan.

"If you don't touch it, you can't get in, and if you touch it, you can open the formation?" Gong Wankun's head immediately became big when he heard it, he didn't know anything about the art of the formation mechanism, and thinking was not his strong point, but fortunately, there were three people here.

Jin Yu stared blankly at the stone slab, as if thinking about how to open the cave.

In fact, he had already released the ice bee and let it drill into the gap between the stone slab and the stone wall, and the image that the ice bee saw came into Jin Yu's mind, and as the ice bee moved, Jin Yu gradually mastered the mechanism on the stone wall and understood how to open the cave.

But Jin Yu didn't plan to say it, he wanted to see what Zhu Donggao would do. He always had a feeling that this Zhu Donggao had a deep relationship with this cave.

At this time, Zhu Donggao glanced at the three of them, and said slowly: "I have a way to open this cave, I will pull this stone slab out of the stone wall, and when I pull it out, the formation will start to attack me, and the three of you will help me stop it." ”

Jin Yu sneered in his heart when he heard this, the correct way to open the cave is to push the stone slab inside, this Zhu Donggao definitely wanted to kill the three of them. Jin Yu knew that if the three of them really went to protect Zhu Donggao, then they would all die, no exceptions. But Zhu Donggao will be fine, that stone slab can't be damaged lightly by any magic weapon, and he can use the slate to block the attack.

Gong Wankun and Hong Yingcui both felt that there was no risk in this matter, if it was dangerous, it must be the danger of the person who pulled the slate. The two of them just blocked the attack for it, and if they couldn't stop it, they could retreat.

Gong Wankun took the lead and said: "Okay, I'll block it for you, you can pull it out with confidence." ”

Hong Yingcui also nodded, indicating that there was no problem.

Jin Yu smiled weirdly and said, "It's really ashamed that Brother Zhu is so ashamed to let Brother Zhu take such a dangerous job as pulling the stone slab. ”

Zhu Donggao's heart was sudden, could he see it? Immediately said: "If Brother Jin feels that danger can stand aside, it is enough for the three of us to open it." ”

Jin Yu said with a smile: "The junior brother is just cultivating in the Qi refining period, and I am really afraid that Brother Zhu's good deeds will be ruined, so I will watch from the sidelines." ”

At this time, Hong Yingcui also felt that something was wrong, this Jin Yu was definitely a bold person, but now he said such words of weakness, could it...

Zhu Donggao's face was a little ugly, but he still said calmly, "Then let's start with the three of us, and the life and death of me after pulling out the slate will depend on the two of you." With that, he hugged his fists at Gong Wankun and Hong Yingcui, and then slowly walked towards the stone slab.

Gong Wankun couldn't wait any longer, and as soon as he raised his hand, he took out his spear magic weapon and stood on the left side of the stone slab. Hong Yingcui also simply took out an ice shield, and with a pinch, the ice shield enlarged to the size of a human body, protected it in front of her, and then stood on the right side of the stone slab.

At this time, Zhu Donggao had already grasped the slate with both hands, and no one present knew the value of this slate better than him, this was a piece of Gengjing! Gengjing was the essence of gold, and its main purpose was to refine magic weapons. The magic weapon is added to the Gengjing, not only the sharpness and toughness are greatly improved, but also the true element that can be contained is also greatly increased, if the true element and divine consciousness are constantly tempered, its power is much greater than the magic weapon made of ordinary materials, it is the dream of monks above the Jindan period.

When Zhu Donggao first saw this stone slab, he was already ecstatic in his heart, a piece of Gengjing with a big fist was worth a fortune, how much was the big piece of the table in front of him worth? A poisonous plan was quickly formed, but unfortunately Jin Yu was not fooled. At this time, Zhu Donggao didn't dare to delay any longer, and maybe the two of them would see it after a while. He knew that this piece of Gengjing was extremely heavy, so he directly used all his strength, and the three of them only heard him shout-

"Open!"

Zhu Donggao instantly pulled out the slate, and at the moment when he had just pulled it out, there was a "poof" sound, and a piece of yellow sand erupted from the hole inlaid with the slate!

"Huangquan Sha!"

Gong Wankun's soul flew into the sky, and he knew that his spear would never be able to stop the 'Huangquan Sand', which was a poisonous thing that specialized in breaking magic weapons, and it was also a strange thing that was difficult to find in heaven and earth, and it was actually used to defend the cave!

Gong Wan Kun suddenly retreated backwards! But Huang Quansha's speed was much faster than him, and the spear magic weapon in his hand was corroded into scrap metal by Huang Quansha in an instant!

"Zizi..."

The only thing Gong Wankun could do was to turn his head away and not let his face be sprayed with yellow spring sand, although it was pointless to do so, he did it instinctively, and as he turned his head, he heard the sound of his body being corroded.

Then, he saw the last scene of his life: there was only a skeleton left in the position where Zhu Donggao was standing, and the flesh and blood of his whole body were corroded clean! He wanted to sigh, but nothing came out, and he became a skeleton...

......