The mechanism that opened the door was not hidden, and it was very easy to find, even making the three of them think that it was deliberately designed to be easy to find. Seeing the small door slowly opening, the three of them were a little hesitant, looking at each other, hoping that someone would stand up and explain.

However, time waits for no one, and it even runs behind you with a whip. Two seconds after the door opened, a red glow suddenly appeared in the room, and a female electronic voice was saying something, while a string of characters was constantly beating on the wall above the door. It took another two seconds, and the three of them roughly understood the meaning of the characters, which were a string of numbers, and the countdown was normal. And the electronic sound is easy to understand, it just prompts the three to speed them up. Although the three of them didn't know what would happen if they walked slowly, no one wanted to give it a try, and they all rushed out of the small door like rockets.

Outside the door is a passage filled with traps of all kinds, including sweeping lasers, sudden balls of death, machine guns hanging from the ceiling, and pools of liquid filled with radiation on the ground. The Yuan Dou running in front of it is easy to navigate the traps, some traps can be avoided, and if they can't be avoided, they are destroyed with air bombs, and it moves forward while opening the way. In this way, it didn't take long for him to find the end of the line, a slowly descending dragon stone, there was a small room, similar to the room he came, and there were similar mechanisms on the floor. When Yuan Dou stood on top of the mechanism, the Broken Dragon Stone still couldn't stop, and when Yuan Dou was still wondering, Ye Xi followed and rushed in. Yuan Dou glanced at her, and then looked at Lian Yan, who was still advancing, she seemed to be a beat slower at the start, and many organs seemed to be aimed at her, just blocking her path, every time she encountered this kind of misfortune, she needed to wait a little longer. On the whole, it's like disrupting the flowing dance moves, becoming stiff and soulless. Of course, this can't be said about Lian Yancai, it can only be said that she is not lucky. In the end, Lian Yan still rushed to the destination, and slid in with the broken dragon stone that was only fifty centimeters high, looking a little embarrassed, which made her stomp in anger.

"Damn, these agencies are aimed at me," Lian Yan said, "I could have come in a long time ago, and I'm not slow at all." "Actually, this is a trivial matter, as long as the three of them have arrived at their destination, Yuan Dou and Ye Xi will not talk about her. But she is really strong and competitive, which makes her a little embarrassed and angry.

"I know you're good, you're fast, it's just bad luck this time," Yuan Dou said, "Let's not talk about it, let's see what the hell is going on here, right?" When Yuan Dou pulled his face to the mechanism on the floor, the mechanism that had borne the weight of the three people suddenly activated. The Broken Dragon Stone rose from anew, and the red light that had been visible all along, and the room was dark again. In addition, a door is angry at the back of the entrance, and although there is no light inside, Yuan Dou can still see how gorgeous it is. If the exterior decoration is a public bathroom, then the interior decoration becomes a private theater, and the nature of the two is different, and the difference is very obvious.

"Treasure! Could it be that this is the legendary secret room, where lost ruins await someone to visit? Lian Yan swept the space in front of her with a flashlight, and the gorgeous decoration here instantly rejuvenated her, and at the same time changed to another desire, from anger to greed.

Of course, not only Lian Yan, but Yuan Dou is not qualified to take charge of her, and he himself has some inexplicable expectations. "What are you doing standing, let's go in and have a look, shall we?" As soon as she finished speaking, Lian Yan couldn't wait to nod, but Ye Xi calmly observed the surroundings before nodding. Perhaps it was Ye Xi's vigilance that reminded the two of them to be cautious, realizing that this is not a safe place, "There should be no problem, let's be careful!" Yuan Dou said this, suppressing the curiosity in his heart.

In fact, there is no danger here, and at the same time there is no treasure. Or rather, the treasure does exist, but it's not something that the trio need. In the innermost room, a small room with a secret room pattern visited a circle ball in the middle, emitting a blue-black light, and the circulation room was mysterious. Seeing this, the three of them didn't know what it was for, but Xiaoyin confirmed the origin of this thing with a very positive result. This thing is called a mathematical theorem, and the specific role Yuan Dou doesn't understand very well, in short, it is not something they can use, but a precious material similar to scientific and technological research, which may be very precious in useful hands, and worthless in their hands. Yuan Dou looked at this round ball and couldn't help but smile bitterly, "All in all, we didn't work in vain, didn't we say that this thing is very precious?" We've found the treasure. Besides, even if it's useless to us, but its appearance is good-looking, and it really can't be used as a decoration, right? ”

"Hmm~~" Lian Yan pondered for a long time, and finally accepted Yuan Dou's explanation, "That's it, you put it away!" From her expression, Yuan Dou couldn't see anything, and he didn't know if she was happy or not, but after thinking about it, she should have reluctantly accepted it. He thinks this way because he is like it himself.

Coming out of the room where the math theorem was placed, Mototo found another door. Going out through that door, you will arrive at the starting room. The locked door had been opened, and the three of them walked out of the narrow passage they had come from.

The script for the three of them to go back was fast, and it didn't take long for them to come to the point of divergence. This time, the three of Yuan Dou did not stop and directly entered the road where the lights were still on. They hadn't forgotten the goal they had come for, after all, Augur was still waiting for them to bring back the energy core.

The road is much easier than the dark paths, it is very safe to walk in it, and the lights always inadvertently bring a sense of security to humans. The passages crisscrossed and led to various unknown places, but Yuan Dou had no choice but to test the forks in the road, which took them the time they looked at, and in a blink of an eye, the time of the day passed. Before they knew it, they had been going deep into the ruins for two days, and although the past two days were a bit inexplicable, they still had a harvest. Yuan Dou got the information he wanted, and unexpectedly obtained a mathematical theorem. Also, they are closer to their target, and it won't be long before they are back on the ground. After a busy day, the three of them found a suitable place to rest, and the three of them were together, always comforting each other when they were lonely, and with each other's voices in such an environment, the three of them would not be too uncomfortable, and soon the night passed like this.

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