"Not water?" Shui Qing's face reflected the flowing sparkling waves, and it looked bloodless. "What do you mean by that?"

"No, I mean—not liquids... Certainly not solid. Chu He explained a little sluggishly, "but a kind of substance that originally belonged to outer space and did not exist in the natural state of the earth, separated from the three states of matter,...... Do you know what I mean? ”

"Different temperatures, different pressures, different composition of the gas environment... A celestial body completely detached from the primordial environment......" Zhuo Ying slowly narrowed his eyes and nodded thoughtfully, "Slow and complex changes in the state of matter...... Meteorites that were originally in solid form have been transformed into fluids with metallic luster, which are the atmosphere and the ...... of the earth."

"—Enough! Have you finished your analysis? Everyone's thoughts were shattered in an instant, and everyone looked at the sudden eruption of Jinbi, "I don't care about the crater and cave, and I don't want to know about any new fluid and substance!" I just want to know how we can get the little gift back! He's been sucked in by this for almost half an hour! ”

The chill in the heart suddenly intensified a lot, as if the blood had also coagulated into ice crystals, scraping through the blood vessels inch by inch to grind the fragile ventricles.

Xiaoli, our Xiaoli is still unknown in life and death. Every minute and second we waste may be the last moment of his dying life, struggling to survive. And we, there seems to be no other way but to gather around this silver lake and watch this precious time tick by.

"Let me go down," Chu He suddenly strode towards the shore of the lake, "We can't let Xiao Li just wait for us, I'll go and see what the hell is at the bottom of this lake!" ”

"Chu He, what are you doing! You are crazy! ”

In Zhuo Ying's piercing and sharp shout, Mo Yunxia had already rushed forward, hugged Chu He's waist, and pulled back desperately. Shui Qing and I came to our senses for a while, and immediately stepped forward to pounce on Chu He's struggling body.

"Let go! What's the use of what we're waiting here! The later it is, the less hope there is for safety! If he drowns at the bottom of this lake, he will never be saved after thirty minutes! ”

"Chu River, calm down, this is not an ordinary lake, if you go down, you will be sent to death at all!"

"I don't care—I can't watch Xiao Li die!"

With a dull sound of flesh and skin clashing, Chu He was beaten out of balance and staggered to the side. Mo Yunxia pulled me up who was almost retreating to the lake, and when he was breathing, he saw Zhuo Ying standing in front of Chu He, looking angrily at his face that was a little stunned by the beating, and his hands trembled violently uncontrollably.

"Xiaoli is your brother, and you care about him. But you're also our brother, the only boy left of us! If you want to jump for help, who will save the lives of the rest of us! Zhuo Ying's hoarse voice was extremely low, as if a rope was tightening Chu He's body, "You have also seen Mo Yunxia's windbreaker, such a shallow lake, Xiao Li is far from being as simple as sinking." If you jump, not to mention our safety, don't you want your own life! ”

"Otherwise, what do you want me to do! Go out into the mountains and find someone to help! Chu He sat on the ground and shouted, "Who can help us rescue Xiao Li!" You are calm, you have a way, I will stand here with you and think of the dawn, can you want to come back! ”

Zhuo Ying seemed to be choked by the throat, and his face swelled into the color of pig liver, and the white light was particularly terrifying. For a moment, there was only a desperate dead silence in the air, except for the trembling sobs of Jinbi huddled alone in the corner.

I felt a tired ache in my body, and my brain seemed to refuse to digest what had happened in that short hour, faintly telling me that it was just a terrible and real dream. After all, at this time yesterday, I was still lying deep asleep on the warm, soft bed at home.

And at this moment, whether it is physical or mental, everyone has undoubtedly suffered a serious change.

And the most terrifying thing is that you wish it was just a dream at the moment, but you can't wake up at all.

"No one knows if Xiaoli is dead or not, but I think he may come back."

Silence, Mo Yunxia's voice fell silent like this. Zhuo Ying frowned, and glanced at Mo Yunxia in hindsight-

"What are you talking about? If a person is really dead, how can he come back? ”

"Then it's going to look at this meteorite."

"Yun Xia, what do you mean by that?" I pressed Zhuo Ying, who was about to talk back, and slowed down my tone to the boy who was involved in tonight's predicament for me. "Do you think there's anything else strange about this meteorite?"

"It's too obvious, it's just that you're messing around, and you're ignoring it." Mo Yunxia nodded at me, and then turned to Zhuo Ying with a confused expression, "Think about it, apart from the change of the state of matter, haven't we seen other unexplained phenomena of this meteorite?" ”

"You mean—" I pondered, and my heart suddenly lit up, "—the light?" ”

"There may be scientific evidence to explain the changes in the physical state of meteorites, but when an object is thrown into the lake, the beam of light reflected in a straight line towards the sky is a truly supernatural phenomenon. And this phenomenon is something I have only learned about in science fiction books in the library. Mo Yunxia looked around at everyone's stunned expressions, and bit every word very clearly, "Zhuo Ying, maybe you have also heard of the gravitational field equation, Einstein-Rosen Bridge." ”

I was full of doubts, and when I turned my head to look at Zhuo Ying, I bumped into Shui Qing's equally confused eyes.

"What ......"

"Wormhole!" Zhuo Ying suddenly raised his voice, and his round eyes were almost overflowing with shock. "This meteorite is... It's dark matter! ”

"Zhuo Ying, what are you talking about?" Shui Qing interrupted weakly, "What wormhole, what dark matter?" Does this have anything to do with Xiaoli's whereabouts? ”

"—It's the space-time hole, the passage that connects the two space-times! It's incredible......" Zhuo Ying bulged his eyes, a little almost crazy excitement and excitement, "The unknown immense momentum has derailed the star... The debris that fell on the earth... The repulsive effect of positive energy and negative mass... So the tunnel will remain connected on Earth as well! So that's how it was... Everything makes sense! ”

I didn't seem to understand, and I didn't have time to think about how Mo Yunxia, as a philosophy student, could have so much understanding of astrophysics and try to capture intelligible information from Zhuo Ying's upside-down words.

"This meteorite is dark matter, the key to the mirror universe! Oh, my God... This is actually true, I always thought it was just an imaginary fallacy! But now it is right before my eyes, and it is not a known substance that is made up of celestial bodies, but it is real! Zhuo Ying's gaze was fanatical and excited, as if he had forgotten that Xiao Li was in danger, "It didn't change its form at the beginning of its fall, so all the previous expeditions didn't notice the anomaly, just an ordinary meteorite!" But as time slowly passed, it also returned to its original wonderful form, and it happened to be discovered by us as the medium of connecting time and space! ”

"You say, did Xiaoli cross over......?" Jin Bi's voice came from a dark corner where the moonlight could not shine, faintly revealing the fear of shrinking.

"That's probably what it means, but it's not sure that everyone knows it." Mo Yunxia overwhelmed the noisy voices of Shui Qing and Chu He who asked Zhuo Ying again and again, and explained to everyone carefully, "From a scientific point of view, time travel is not a simple two-dimensional shift in time as shown in film and television dramas. Wormholes connect distant regions of the universe, and there is no pattern to follow. More often than not, we think that the travel terminal of the time-traveler is far away in a parallel universe, or even a baby universe, where there is most likely no life, no civilization, no atmosphere necessary for human survival. If... If there is really a possibility of one in a billion, starting from the earth civilization and traveling back to the earth civilization at a certain time, it is the blessing of Xiaoli. ”

"It's... How could it be ......" Shui Qing's body went weak and sat down on the ground.

Mo Yunxia's last sentence was like cold ice water poured on my fragile heart at the moment. His explanation was clear—no matter how unbelievable and unbelievable it was, Xiao Li had indeed been transported to some unknown time and space. Untraceable, life and death unknown.

No one can accept this statement, but the facts are cold in front of them, and there is no room for denial and refutation.

"But, why did you just say that Xiaoli still has the possibility of coming back?" Mo Yunxia eased his stunnedness, glared at Mo Yunxia and said in a cold tone, "Do you have a way to save him back!" ”

"—Are you crazy, he just said that just to calm you down." Zhuo Ying replied coldly, "Yes, since the wormhole can realize the connection of two space-times, theoretically that space-time will also have a port to come back. But we don't even know what the environment is on that side, so how can we be sure that Xiaoli will find that port alive? ”

I looked at Mo Yunxia, and he just looked at me apologetically with discouragement. In the corner, Jin Bi twitched strangely, like an uncontrollable trembling sob. The sound stopped instantly, and calm returned.

"There is little hope... But I can't say for sure. Mo Yunxia whispered with a bitter face, "Not to mention the environment, the concept of time in mirror time and space is also different." For example, forty minutes have passed since the accident of Xiaoli on our earth, and it may only be a microsecond of work on that side, and Xiaoli may also be saved... It's just that we don't know anything about that time and space, and we can't calculate the conversion rate of direction and time in a short period of time, so we ......"

In the end, Mo Yunxia only sighed softly.

The rain had already stopped, and Chu He also sobered up and froze in place. Shui Qing and I looked at Zhuo Ying who was wandering around every corner of the cave, and didn't know what to say.

There seemed to be countless insects and ants biting and wriggling in my heart, and I felt indescribably anxious and sad. The cave was dead silent, so quiet that you could hear the sound of time ticking and trickling down the moonlight. Suddenly, a commotion came from the dark corner on the edge of the cave, and before there was time to turn back, Zhuo Ying's screams full of horror had filled his eardrums-

"Jinbi!"

Everything happened too fast, and when I turned around, I saw that Jinbi had already rushed forward and jumped onto the silver-white mirror-like lake.

Shui Qing didn't have time to think about it, almost subconsciously rushed forward and grabbed one of Jinbi's feet that had fallen on the surface of the rippling lake. Faster than fear spreading to every pore of the body was the snake-like silver thread that wrapped around Jinbi's body. It was about that Jinbi's momentum was too great, and those beautiful and strange silk threads almost strangled Jinbi to immobilize in just a second. What's even more terrifying is that before everyone can react, the silk thread gushes out of the lake and climbs up to the periphery of the lake, and Shui Qing tightly holds Jinbi's ankle arm.

My heartbeat seemed to have stopped for a moment, and my throat seemed to be frozen and I couldn't scream like Zhuo Ying and Shui Qing. All the blood rushed to my brain, and I watched as the bodies of my two best friends were swept into a huge beam as strong as the sun, roaring up and piercing through the breach at the top of the cave—

"Shui Qing!"

The pillar of light was instantly annihilated, and only my dull shout echoed in the entire empty cavern.

Silence returned;

Probably hell is so silent.