Lu Nan has already gone to explore the road ahead. Xiao Lintian had said before that the underground palace's mechanisms were very complicated and told him not to take risks easily.

Lu Nan walked to the corner and saw a door, so he followed Xiao Lintian's instructions and did not dare to go in.

He stood a few meters away from the door, trying to see if there were any traps around him.

But the road at the door was the same as the road where he was standing. They were both paved with bluestones, so there seemed to be nothing wrong with it.

And that door seemed to be embedded in the tunnel wall, without any gaps, and the two heavy doors were also closely connected together, without any gaps.

Lu Nan moved slowly, and only walked one meter. Suddenly, his feet were empty, the bluestone suddenly separated, and Lu Nan felt that his body was sinking.

He was so frightened that he jumped up and hit his head on the roof of the cave. Several hidden arrows shot out from the walls on both sides.

Lu Nan had quick eyesight and quick hands. He tilted his body and slid back dangerously.

But even so, Lu Nan was still hit by an arrow in the shoulder.

He quickly turned over and sat up, turned around in shock, and saw that the walls on both sides were closed, and the bluestone slab where he had sunk just now was still open.

There was a popping sound, and a hole appeared on the roof of the underground palace, and a child fell down, laughing strangely.

Lu Nan immediately raised his sword and looked defensive.

"This is just a warm-up. There is no poison on the arrows. It is intended to remind you that the following levels will become more and more difficult. You may lose your hands, arms, or even die!"

"Those who dare not challenge will find their way back again!"

“Quack, quack…it’s safe to turn around!”

The child laughed strangely a few times and then shrank back.

But Lu Nan had already seen clearly that the child was not a real person at all, just a puppet the size of a child.

It opened and closed its mouth just now, revealing the metal machinery inside.

This is a mechanism that the old palace master of Xingluo Palace has arranged long ago, and these sounds are also set in advance.

But how did he do it? After hundreds of years, he can still apply it freely?

Lu Nan was curious and wanted to hit the cave roof again, grab the puppet and study it.

But he didn't dare to take risks easily.

Hearing that there was no poison on the arrow, Lu Nan breathed a sigh of relief, pulled out the arrow himself, and quickly took out the wound medicine given by Ling Yu and applied it on it.

As soon as he was bandaged, Xiao Lintian and the others came over.

"Lu Nan, are you injured?"

Zhao Xuan asked with concern when he saw that Lu Nan had not yet put on his coat and there was blood on his inner coat.

Lu Nan quickly told a few people what happened just now.

Qin Shan learned weapon refining at Qinglong Academy, and Xiao Lintian gave him the mechanism skills collected by the Silver Wing Palace Master.

Qin Shan studied hard and although he did not dare to say that he had become a master, he still understood some general mechanisms.

"It's a pity that I didn't see the puppet with my own eyes. If I had, I might know how it was made!"

Qin Shan saw that the bluestone slab below was still open, so he slowly walked forward.

"General Qin, be careful not to fall!" Lu Nan quickly reminded him, worried that he might touch the mechanism.

"It's okay, the puppets will come out to remind you that the next levels will become more and more difficult, which proves that as long as you are willing to keep moving forward, the next level will open!"

Qin Shan walked to the open bluestone slab, looked down, and saw a disc changing hands one meter below.

He was about to reach out and turn the disc, then thought about it and shouted: "Pei Yu, give me your sword!"

Pei Yu saw that Qin Shan was not in danger, so he quickly walked up and handed him his sword.

"You step back first!"

Qin Shan waited for Pei Yu to retreat, then took his own sword and Pei Yu's sword and stretched it out.

The two swords took the place of hands, and when the disk was turned, the door in the middle slid open to both sides silently.

"Success!"

Qin Shan retracted his sword excitedly and saw the bluestone board closed.

This level represents passing.
Chapter completed!