It's weird, is this the mechanism for opening doors? But it's not quite like it, because this flat wall has no angle, it is completely perpendicular to the ground, and it is very inconvenient to touch it with your hands.

So, what exactly is it used for?

Gao Chao was thinking, but the fat man was already crouching down, and he was also attracted by the flat wall, and was shining on it with a diving lamp.

Under this photo, I saw the fat man's body trembling, as if he was startled, Gao Chao was also shocked, and quickly pulled the fat man, thinking that there was some danger.

The fat man patted his chest, pointed to the wall, and pointed to himself, meaning that he wanted to tell Gao Chao that the stone wall was like a mirror, and when he looked at it just now, he saw what he looked like now, so he was startled.

Gao Chao was helpless, glanced at the fat man, and really didn't know what to say.

But he also wondered, why did he have to make a mirror on this uneven wall? Do people here like to look in the mirror at the door? Or is this supposed to be an open-door mechanism?

So he also squatted down and used a diving lamp to shine, and sure enough, as the fat man said, this flat wall is like a mirror, but the color is black, if you don't use the light to shine, you really can't see your own reflection.

It's just that Gao Chao looked at it but suddenly found that he used the diving lamp to look in the mirror, and the mirror slowly lit up, and the fat man also felt strange behind him, so he quickly shone his diving lamp again.

The two diving lamps shone on the mirror, and the mirror was strangely unreflective, but its own brightness really increased, from a black flat mirror, gradually turned into a mirror that gradually turned white and showed light.

Gao Chao was amazed, could it be that this mirror was absorbing light, he had never seen such a device before, what would it do if it absorbed light?

It was only as soon as this thought came to me that a muffled sound sounded in the passage.

Both Gao Chao and the fat man were startled, because the sound traveled more clearly in the water, and the muffled sound sounded as if it was happening next to him.

The two of them quickly looked back, and the diving lamp shone at the other end of the passage, where there should have been an open door, but now they looked at it, and somehow the door was so tightly closed, just like the one in front of them, that there was not even a crack in the door.

Gao Chao and the fat man glanced at each other, and they both felt bad in their hearts, could it be that they were going to be trapped and die here?

However, the pessimistic thoughts of the two of them had just appeared, and there were some other changes in the passage.

Only the sound of "gurgling" was heard coming from all directions, and bubbles were constantly released from the uneven wall, and for a moment the passage where the two of them were in a mess, and even their vision was obscured by the bubbles that came out.

Due to the suddenness of the incident, Gao Chao and the fat man had no preparation at all, let alone any countermeasures, and the two of them could only watch the changes in the passage, but suddenly found that the water surface in the passage was falling rapidly.

It didn't take much effort for the two of them to have their heads exposed to the water, and then the fat man first spit out the respirator in his mouth and tried to catch his breath.

"I'm grass, I'm tall, there's air here." The fat man couldn't help but scream.

Gao Chao also took off the respirator, and looked at the water surface that was still falling in surprise, and gradually, all the water in the passage was discharged from the channel, and the two of them stood at one end of the passage, both looking at a loss.

"What the hell did we do?" Gao Chao glanced at the fat man.

The fat man grinned and said, "I remember we just looked in the mirror." ”

They suddenly came to their senses and looked at the mirror on the wall.

Gao Chao said excitedly: "It must be because the light of the diving lamp is shining on the mirror, and some mechanism has been activated, hurry, continue to shine, and see if there can be any surprises." ”

The two of them hurriedly used the diving lamp to look at the mirror again, and it was strange to say that the mirror was getting brighter and brighter, as if it had absorbed the light, and even it was lit up.

The fat man suddenly laughed and said, "Old Gao, I don't think this thing should be solar, right?" How can it turn into a flashlight itself when you shine another flashlight on it, what the is this? ”

Gao Chao was also observing the mirror in front of him, and suddenly said, "Why do I feel that it suddenly dimmed?" ”

The fat man exclaimed: "Don't say it, it's true, it was very bright just now, why is it dark again?" ”

Gao Chao was puzzled, suddenly turned his head slowly around, and then glared in surprise.

Seeing him like this, the fat man hurriedly turned around to look, and then he was stunned for a moment, and then said in surprise: "My grass, when did you turn on the light?" ”

It turned out that the passage where the two of them were located was lit up at some point, and the device used for lighting turned out to be the uneven walls on the two sides around it.

They emit a faint yellow light, a warm light source, giving people a warm and comfortable feeling in this cold seabed.

"It really works!" Gao Chao said excitedly: "Quick, keep looking, I probably already understand how this mirror works." ”

The fat man didn't dare to slack off, grabbed the diving lamp with his hand and pasted it on the mirror, and said, "I also understand, this mirror has absorbed the light source in our hands, and then it has become the light on the wall, right?" ”

Gao Chao nodded and said: "That's probably what it means, but I think our little light is just a catalyst, isn't there such a poem, the spark of the stars can start a prairie fire, and our two diving lamps are just the sparks of the stars." ”

"Awesome." The fat man smiled at Gao Chao and said: "You kid is quite educated, I admire you for being able to write and martial arts, really, it seems that I want to marry my sister to you, that's right......"

As the fat man spoke, the topic was distorted again, but before he finished speaking, the tightly closed door beside them suddenly made a "snort", as if the ball was leaking, and scared the two of them again.

"I'm grass, Lao Gao, are you farting?" The fat man almost jumped up, took a step back, and covered his nose.

Gao Chao didn't have time to take care of the fat man, and stood up and looked at the door in front of him.

As he expected, the door then changed rapidly, and he saw that the three round door panels, like blooming lotus flowers, moved in three directions instantly, and in the blink of an eye, the door was opened. (To be continued.) )