Huang Xiao and Qingfeng didn't think much about it, they walked through the sword formation on the periphery and walked to the central stone platform.

"This knife looks plain, but I think it should be a bit uneasy, why don't you pull it out and take a look?" Huang Xiao stood beside the stone platform, looked at the knife carefully, and said.

Qingfeng also nodded, these swords around him all exuded a fierce aura, and the knife in the center of this stone platform did not have any aura, which was a little surprising.

However, even if this knife didn't look unusual, it was inserted in the center of this 'Heavenly Great Array', which was obviously the most crucial.

Huang Xiao was sure that he had guessed correctly, this was the key to sealing the array, and it was also the key to unsealing the array.

At this time, the circular stone platform was also completely exposed to the eyes of Huang Xiao and Qingfeng.

The stone platform is not smooth, and there are many grooves crisscrossed by thin lines, and these grooves are not deep, that is, an inch deep.

"This knife shouldn't be easy, but it looks like it can't be pulled out!" Qingfeng said.

"Try it!" Huang Xiao stepped onto the high platform and walked towards the knife.

Here, Huang Xiao didn't worry about his own safety, Senior Li couldn't just lay out killing moves again and again, right? And in addition to the killing moves laid by Senior Li, it seemed that the original formation in the valley didn't seem to be dangerous, so it should be the same here, so Huang Xiao was very relieved in his heart.

Walking to the center, Huang Xiao held the handle of the knife with one hand, and then lifted it hard, not moving at all.

Seeing that one hand was not enough, Huang Xiao held the handle of the knife tightly with both hands, then applied his power to both hands, and then pulled it up violently.

"Up~~" Huang Xiao shouted, he continued to improve his skills, but there was still no movement in this knife.

"Haha~~" Qingfeng laughed.

With the laughter of the breeze. Huang Xiao let go of his hands and said with a slight smile: "Sure enough, this knife can't be pulled out by brute force!"

Huang Xiao was not surprised in the slightest, and he had no expectations for his attempt. If this knife can be pulled out, maybe Senior Li will pull it out when he comes. That is, the knife is stuck here. Even the masters of the martial arts realm are helpless.

"Good baby! I'm afraid that this knife can only be pulled out after this 'Heavenly Great Array' is unsealed, then this knife is a treasure in the secret of the 'Seven Spirit Knife'." I don't know how it compares to those four scriptures?" Huang Xiao said secretly in his heart.

"Senior brother, come down and look at that groove!" Qingfeng said, pointing to a key-shaped groove on the edge of the stone platform.

Huang Xiao walked quickly to Qingfeng's side, and then looked in the direction Qingfeng was pointing.

"That's right, this key fused with the 'Seven Spirit Blades' is exactly the same size. Huang Xiao took the key from his waist and said.

"It seems that this key is indeed needed to unlock this 'Heavenly Array'. Qingfeng smiled slightly.

Now they are all ready, although Li Bai has been here back then. But he didn't have this key, so naturally he couldn't unlock the big array, so he could only wait for the descendants.

"After unsealing this big array, this knife should be able to be pulled out, right?" Huang Xiao said with some expectation.

Qingfeng smiled and didn't speak, he was naturally curious.

So, Huang Xiao inlaid the golden key into the groove.

As the key entered the groove, Huang Xiao and Qingfeng saw a familiar scene again. The key was like the 'Seven Spirit Knife' in the 'Seven Spirit Plate' at that time, and it began to melt. Turning into golden water, it spread along the criss-crossing scratches on the stone platform.

Seeing that these scratches were constantly filled, Huang Xiao and Qingfeng knew that as long as these scratches were filled, this formation should also be unsealed.

The two of them waited for half an hour for the scratches to be filled. And at the moment when it was filled, Huang Xiao and Qingfeng both felt that this formation began to permeate a compelling coercion.

"This knife!" Huang Xiao and Qingfeng stared closely at the knife in the center of the large array.

With the appearance of this coercion, the knife also seemed to have undergone some changes, and the golden water in these scratches began to converge around the knife.

"All absorbed?" Huang Xiao exclaimed.

Qingfeng nodded, he didn't expect that the golden key formed by the fusion of the 'Seven Spirit Knife' would be absorbed by this knife in the end.

"Senior brother. The knife doesn't seem to be as rusty as it used to be, does it? The rust seems to have disappeared a bit. Qingfeng said.

Huang Xiao hurriedly took a closer look, and sure enough, as his senior brother said, the rusty knife body seemed to be better than just now, although it was still rusty.

'Boom~', Huang Xiao and Qingfeng only felt that the air shook, and then the two of them found that the momentum of the heaven and earth around them began to shake, and the two of them couldn't control it.

'Buzz~~' At this time, the stone chamber suddenly remembered the buzzing sound.

Huang Xiao and Qingfeng looked at the swords stuck in the ground in the stone chamber in surprise, only to see that these swords began to tremble, and the tremor of so many swords made this humming sound.

As the tremor became stronger and stronger, the murderous aura of the sword in the stone chamber also became more and more vigorous.

"Huh?" Huang Xiao and Qingfeng turned their attention back to the rusty knife in the big array.

This knife didn't tremble like other swords, but Huang Xiao faintly felt that this knife seemed to be absorbing the murderous aura in the stone room, the evil aura, which was the aura emitted by the sword.

'Bang la', in the shocked eyes of Huang Xiao and Qing Feng, all the swords around here were broken, and every knife and every sword was turned into several pieces and spilled on the ground.

"These are all swords and swords!" Huang Xiao didn't expect that such a sword and sword would suddenly all break, how could this be possible.

However, before Huang Xiao had time to think about it, he only heard a 'ding' sound in the big array, and the knife in the center finally began to tremble.

"This knife should have absorbed the evil aura of the swords around here, or the sword aura, right?" Qingfeng said, "This knife is a little weird!"

Huang Xiao nodded, he also noticed that the fracture of the surrounding swords obviously had a lot to do with the rusty knife in the center, although this knife still hadn't changed much.

With a 'bang', the knife suddenly bounced out of the center of the large array without warning, and then shot towards the passage of the hole.

Huang Xiao didn't hesitate at all, and at the moment when the knife popped out, Huang Xiao had already rushed forward.

Although the speed at which this knife popped out was fast, Huang Xiao was even faster.

Huang Xiao immediately grasped the handle of the knife, but when Huang Xiao grabbed the handle, his body trembled violently, and then his body slammed into the ground with a bang. (To be continued......)