"That's right, eyes!"

Lin Chen suddenly thought of something, those red eyes might be able to tell Lin Chen the answer!

Thinking of this, Lin Chen took out his mobile phone again and threw it at the back of the moon again in the same way as before, and when Lin Chen flew in the air, he found that the red eyes at this angle were indeed closed.

"Really?"

Lin Chen thought with some surprise, and then he tested it in all corners of the room, and the results showed that except for the position that Lin Chen originally recorded, the rest were all with their eyes closed, so obviously, the problem was on the wall that could make the red eyes open!

Lin Chen was very excited now, he hurriedly walked to the side of the wall, stretched out his hand and carefully touched it, except for the slightest coldness, there was no difference.

"Knock knock..."

Lin Chen knocked on the wall like knocking on the door, and then-

"Knock knock..."

There were three knocks on the wall again, but this time it wasn't Lin Chen's sound, but more like an echo, or was there really someone knocking on the wall on the other side?

Then, Lin Chen tried to knock on the wall again, just like just now, only after about three seconds, the wall responded to Lin Chen's knocking sound again.

And Lin Chen knocked a few times, and then he would respond a few times, so either the wall itself has a special material that can replicate what others are doing on it, or someone is deliberately playing tricks on Lin Chen.

But if you think about it carefully, the possibility of the latter is too slim, and in this world, except for Lin Chen who is so boring, who else has nothing to do and comes here to play with others?

"Ten Thousand Flame Divine Fist!"

Lin Chen didn't care about thirty-seven twenty-one, if the wall could really replicate what Lin Chen did, then if Lin Chen used martial arts, it would definitely have the same effect.

After a loud bang, before Lin Chen could give any response from the wall, he was violently bounced away by an inexplicable gravity.

And this power Lin Chen is no stranger to, it comes from the Ten Thousand Flame Divine Fist he just used!

"I'm going to go! This wall is really godly, wouldn't it be invincible if I could use it as a defensive item?"

Lin Chen muttered in surprise, he knew very well what kind of terrifying power his punch could bring, even if he hid the Tai family, he might not be able to hit Lin Chen's strength, so the wall could bounce damage in an instant, what does this mean?

Lin Chen didn't dare to try his other martial arts after that, if he used the Five Elements Explosive Bomb, to be reasonable, whether Lin Chen could live or not was a question, if he died under his own martial arts, Lin Chen's old face really didn't know where to put it.

"It's hard work! Walls can reflect your damage, so why can't they reflect light sources?"

The middle-aged man has been completely defeated by Lin Chen's IQ, and he has already solved it to this point, Lin Chen still knows nothing at all, which really makes the middle-aged man not know what to say.

"Oh~~~"

Lin Chen let out a long sigh, and his heart was particularly embarrassed, this was indeed a problem of his negligence.

"But how does this wall reflect light?"

Lin Chen had completely given up, for these things, Lin Chen was really a little difficult, if this was a mechanism designed by these cultivators, Lin Chen would definitely be able to solve it quickly, but this did not belong to Lin Chen's domain.

"You don't care how it reflects light, have you ever thought that you've always followed the moon, so it keeps moving with you, so why don't you try to go the other way around?"

The middle-aged man's words almost made Lin Chen want to drag the other party out of his body and beat him, and the reflection light of the middle-aged man who had been talking there for a long time completely distorted Lin Chen!

"Why didn't you say it earlier?"

"Did you ask me? Besides, the reflection of the moon is indeed the work of this wall, and I didn't say that the answer to the secret of this room is also in it!"

The middle-aged man's explanation, Lin Chen almost wanted to say, 'There's nothing wrong!', but Lin Chen was really angry and unintentionally laughing at the moment.

After remaining silent, Lin Chen, according to the middle-aged man's words, turned his back and began to move around the moon.

Sure enough, the middle-aged man's method was indeed effective, when Lin Chen's back was moving, the moon was indeed stationary, and when Lin Chen walked behind the moon, he also saw those eyes.

"Huh, closed..."

Lin Chen was stunned for a moment, and then immediately reacted.

"I see, I should go along first, let the back of the moon move to that strange wall, and when its eyes open, I'll turn back!"

After figuring this out, Lin Chen followed this method and let the eyes behind the moon face the wall that would bounce everything, and then when Lin Chen turned his back, those red eyes also opened.

"That's it!"

Lin Chen was already sweating after doing all this, this kind of decryption method, if there was no reminder from the middle-aged man, Lin Chen was afraid that it would take a lot of time, and he would not even be able to unravel it until he died.

At this time, the familiar cave earthquake struck again, and Lin Chen understood that he had solved the puzzle in the fourth gate.

Soon, after the tremor, the moon in front of Lin Chen's eyes disappeared again, replaced by the Sifang Cave, and the murals on the stone door in front of him changed their appearance again.

"Have you finally reached the fifth gate..."

Lin Chen felt that he was about to collapse, but fortunately, he was already halfway to the last stone gate.

Fixed, Lin Chen set his eyes on this fifth mural, the main body of this painting is a table with a sense of science and technology, the whole is blue, there are several silver-white dots on the table, these dots are connected by electronic wires, it seems to be chaotic, in fact, every point is connected.

As if these electronic wires were the root of making them shine, Lin Chen tried to spell these dots into some kind of word from different angles, but after trying for a while, Lin Chen found that it was not a word at all, nor was it any letter.

"What exactly is the connection between them?"

Lin Chen didn't plan to continue to investigate, and then charged the divine power again on the twelve fragments, and at the moment when the fragments lit up, a scene appeared in the background of that table, Lin Chen knew that this was the background map of the Milky Way, but the time that appeared was only one second, making it impossible for Lin Chen to verify.

"Could it be that the dots represent the stars?"

Lin Chen guessed in his heart, and after a pause, Lin Chen stepped into the fifth door.

As soon as Lin Chen walked in, he was stunned by the scene in front of him, this was no longer a cave, nor a wooden house, but Lin Chen was standing in the clouds.

Look closely, there are some terrifying thunderbolts hidden in the clouds.

"Here?"