"Knock knock" A quick footstep came from downstairs.

Cao Xi was so frightened that she hid again, and Shi Wei picked up a chair and prepared to hide at the door of the laboratory.

The footsteps stopped at the staircase, and then a head poked out, which turned out to be Xiao Jing, which made everyone breathe a sigh of relief.

Shi Wei put down the chair in her hand and said, "How is it?" Did you find anything? ”

Xiao Jing shook his head: "It's nothing, there are several stones on the ground, it should have been thrown in on purpose." ”

"Stones?" Everyone was puzzled for a moment.

"Yes." Xiao Jing continued, "When I chased to the door, I didn't see anyone's shadow. ”

"Who could that be?" Shi Wei thought for a while, "Could it be Guan Yang?" ”

"No, it won't." Xiao Jing vetoed, "If they find us, why don't they come in directly, but instead throw stones in, what does this move do?" ”

So they fell silent.

Cao Xi felt that something was wrong: "But don't you think it's strange? ”

They set their sights on Cao Xi.

"We've been here for so long, and we haven't met a single person, except for the dark shadow last time...... Now someone throws stones in, why? ”

Shi Wei thought for a while: "Could it be that black shadow?" ”

"The fog outside has lifted, and it should have nowhere to hide." Cao Xi pointed out the window.

"And it's trying to lure us out?" Shi Wei asked.

But Cao Xi couldn't guess anything else, so he could only shake his head and say he didn't know.

Xiao Jing looked at them, and then said with a solemn expression: "You'd better come downstairs with me, there is a strange thing." ”

"Huh?" They glanced at each other, then followed Xiao Jing down the stairs.

When they reached the first floor, they all noticed the stones thrown on the ground, and as Xiao Jing walked all the way to the door, there was no trace of strangers coming here, and the rusty door was only the angle they pushed open when they first entered. Xiao Jing came to the courtyard, pointed to a piece of plant and said, "Look, what can you find?" ”

Shi Wei and Cao Xi walked forward, this plant was noticed by Cao Xi when they entered here, when they urged Cao Xi to walk quickly, so that she accidentally scratched her hand on the leaf.

"What's ......" Before Shi Wei finished speaking, she saw a blooming flower in the green grass. This one? Did you just have one? ”

Shi Wei glanced at Cao Xi, and Cao Xi was also surprised.

"I didn't ...... No, I don't. ”

The flower bloomed on a vine, and it was wrapped around the stem of the plant next to it, and it produced a yellow flower, and under its vine, there was a purple flower, the same form, different colors.

"Why are there two different colors on the same plant?" Shi Wei took a closer look, but found that such a flower had no stamens, only rolled petals.

"It's weird." Shi Wei couldn't help muttering.

"When I first came down to look, I looked around carefully, and I happened to find this one, very strange, only that one." Xiao Jing said, then looked at Cao Xi, "This is where you just looked, right?" Did you really find out at the time? ”

Cao Xi was a little sluggish, recalling what happened here just now.

"I noticed this vine just now, but it didn't bloom at that time......," Cao Xi said, "I looked at it because I had seen such a vine in a dream." ”

"Dreamed?" Shi Wei confirmed.

"Yes." Cao Xi looked at Shi Wei, "Not only that, but I also dreamed of such flowers, one yellow and one purple, blooming on the same vine." ”

Shi Wei looked at Cao Xi's eyes, she naturally believed in Cao Xi.

"How many strange dreams have you had?" Xiao Jing asked suspiciously, "Since you weren't born here, why do you carry a lot of memories here?" ”

"I don't know." Cao Xi became scared, "I really don't know. ”

Shi Wei suddenly picked up Cao Xi's hand and swiped it lightly on the leaves next to her.

"Ahh Cao Xi didn't hurt, but was taken aback: "Shi Wei, what are you doing?" ”

"You just scratched your hand here, didn't you?" Shi Wei said, "What about after that? ”

Cao Xi looked at the red blood droplets on his fingers, then shook his hand and sprinkled the spilled blood droplets on the plants next to him: "I...... I just shook my hand and put on a band-aid......"

Shi Wei squatted down and watched as the blood she sprinkled slowly left on the leaves of the plant, flowing into the tangled vines, they seemed to absorb blood, quickly stretched the leaves, and then slowly grew a bud from one side, so it seems that it will not be long before another flower will bloom......

Cao Xi didn't understand how this happened, but it really happened in front of her eyes.

Shi Wei stood up again, but her face was not good-looking,

"Shi Wei, is Cao Xi ......" Xiao Jing had something to say, but he didn't say it clearly in front of Cao Xi.

Shi Wei didn't answer, and was silent for a while.

Then she looked back at the lab, which was lit up in front of the dark mountain.

"Xiao Jing, how long can this spare electricity last?" She asked.

"I don't know if it's been used before, it's as long as three days, as short as one day, and it will definitely be completely gone."

"Then let's close some of them first." Shi Wei said, "As long as I have electricity on the third floor, I don't know if this electricity can run these devices." ”

"I can try it." After Xiao Jing finished speaking, he walked into the building, turned off the power on the first and second floors, and only the window on the third floor was left with white light.

"What are you going to do?" Cao Xi asked.

Shi Wei turned her head, glanced at Cao Xi's fingers, and asked, "Is it still bleeding?" ”

"Huh?" Cao Xi picked up his finger and saw that the wound had been closed as before, and there was no trace of scratches.

She was also surprised, what did all this portend?

"Cao Xi." Shi Wei suddenly looked at her with a solemn face and said, "I want to use your blood, I want to study it, is it okay?" ”

"Mine?" Cao Xi was surprised, but on the vines behind him, the flowers slowly opened unconsciously......

"Just a little bit, maybe your doubts can be solved."

Looking at Shi Wei's sincere eyes, Cao Xi actually had no reason to refuse, maybe it was just a drop of blood, and being able to understand herself was what she had always hoped for.

"Okay."

Cao Xi followed Shi Wei back to the building and went up to the third floor together.

On the first floor, which was already dark, they didn't have time to pay attention to the rooms that were already hidden in the dark, and after the darkness was restored, what was hidden was about to move......

……

Luo Xin looked at the darkness in front of him, feeling that countless eyes were also watching him, and just when he felt that he was about to break out in a cold sweat, a yellow point of light slowly rose beside him, changing his line of sight.

Immediately after, more and more yellow points of light appeared around him, one after another.

"What is this?" DL-03 is full of questions.

"It's a firefly." Luo Xin finally breathed a sigh of relief, and looked at the fireflies in the dark night happily, this was the first time he had seen so many and such big fireflies in so many years.

"Fireflies?" DL-03 was stunned for a moment, "I'm sorry, Mr. Luo, because I can't connect to the Internet, I can't update the data, and I can't understand this thing." ”

"It's okay." Luo Xin stretched out his palm, and a firefly flew obediently above his palm. "Such creatures have been gone in the city for decades, so you won't learn about them."

"So what exactly is this?" DL-03 asked, "Are they dangerous?" ”

"Of course not." Luo Xin replied with a smile, "They are just an insect that likes to be nocturnal, and they have a luminous device on their abdomen that emits a yellow-green light. ”

"I see."

DL-03 also followed Luo Xin's example, reaching out and trying to make them dock in the palm of his hand, but they flew past it and had no intention of stopping.

"Mr. Luo, why don't they stay in my hands?"

"Haha." Luo Xin replied with a smile, "Maybe they didn't feel your temperature and ignored you." ”

"Really?" It says, "So can I raise my temperature and let them stay?" ”

"No, no." Luo Xin put down his hand, "That's not what I meant, they don't stay because of the temperature, the stay is just accidental." ”

"By chance?" DL-03 looked at Luo Xin, "Then they stay on you, is it also an accident that situations like this are happening?" ”

"Huh?" Luo Xin was stunned for a moment, only to find that there were countless fireflies staying beside him, illuminating his whole body. It was as if the fireflies that had just come from all around had gathered around him, and they surrounded him, as if they were observing him.

"Mr. Luo, do you need my help to get rid of them?" DL-03 asked, "I detected your heart racing, is it scared?" Are they aggressive? Need my help? ”

"No, wait a minute." Luo Xin stretched out his hand and politely rejected its suggestion, "They don't attack people, they may feel our strange ......"

As he spoke, a dark shadow quickly passed behind him, and the speed of a gust of wind dispersed the fireflies at once, leaving only the darkness of the night.

"What's that?" Luo Xin could feel the movement as he passed, but because he was behind him, he didn't notice that the shadow had already disappeared.

"It's a figure." DL-03 replied to him.

"Do you see clearly?" He asked.

DL-03 stares through the fragments he had recorded in his mind, then slows it down, freezes it - but all it finds is a dark shadow.

"I'm sorry, Mr. Luo, because the surrounding environment is too dark, all I saw was a black figure."

"Are you sure it's a person?" Luo Xin asked.

"It should be, in terms of body characteristics."

Luo Xin pondered, who was this uninvited guest, and what was his action just now? But suddenly I felt a tingle on the back of my hand, and with a twitch of my hand, a firefly fell to the ground and gradually extinguished the light on my body. Luo Xin raised his hand, only to feel that his arm was a little numb, but it was too dark to see clearly.

"Mr. Luo, you seem to be bleeding." DL-03 said, and then his eyes lit up a little, shining on the back of Luo Xin's hand, and indeed a small red dot appeared, as if it had been stung by an insect, and a small blood spot flowed out.

Luo Xin carefully squeezed out a piece of blood, and then wiped it clean with his cuffs, such a small wound was nothing. I just don't know why this little thing stung itself.

"Mr. Luo, didn't you say that they don't attack people?" DL-03 asked, "But you do get hurt." ”

"It's nothing." Luo Xin replied, "In the wilderness, this kind of thing is very common, it's okay." "But, on second thought, was this little thing sting itself by accident? What is the purpose of just surrounding themselves in them? What would happen if they all stung themselves just now?

Luo Xin suddenly felt a little grateful in his heart for the sudden black shadow, was he saving himself?

"Mr. Luo, do you want to keep going?" DL-03 reminded him.

"Yes, yes." Luo Xin rubbed his head, "Let's keep walking." ”

They continued to walk in the darkness, illuminating the path ahead with only the light of DL-03. In the darkness, the plants beside them made a "zig" sound, like the sound of desperately growing in the night, they rubbed and alternated, but they didn't see it.

"Will you run out of power?" Luo Xin asked softly.

"Yes." It replied, "Sixty-three percent of the electricity is still expected." ”

"And how long can you hold out?" Luo Xin couldn't help but worry.

"It should be no problem until dawn." It replied, "If there is the sun tomorrow, I can make additions, but ......"

DL-03 looked up and looked at the dark sky with no stars or moon.

"There's a 90 percent chance that tomorrow will still be cloudy."

Luo Xin looked at the sky, it should be.

"Then you turn off the lights, don't waste extra energy, I can follow your indicator light, there should be no problem."

"Okay, Mr. Luo." DL-03 dimmed the illumination of his eyes, and the small orange lights on both sides of his arms swayed back and forth, guiding Luo Xin in the direction.

In such an environment, he realized that the unknown environment brings unknown feelings, and the confusion and fear are unpredictable. It's just that fortunately, there is a hard backing by my side.

"Mr. Luo." Suddenly, it spoke again.

"What's wrong?"

"Are you feeling sick?"

"Huh?" Luo Xin was surprised why he was asking, and suddenly realized that his right hand had lost his intuition.

He struggled to lift his hand, but couldn't control it.

"What's going on?"

DL-03 turned around, helped lift his arm, and pressed the back of his hand with his fingers, "Do you feel it?" ”

"Nope." Luo Xin became nervous, did the little thing sting him just now, did he react in any way? But recalling what I've learned, fireflies are not poisonous.

"What about here?" DL-03 moved to his forearm and pressed.

"Not either."

"And what about here?" It pressed its upper arm again.

"No......" Luo Xin realized that the problem was far from as simple as he thought, and the paralysis had begun to spread to the top of his arm, perhaps soon with the blood to his heart...... Luo Xin just wanted to use something to control its spread, but suddenly his eyes turned white and he fell into a coma......