Lan Yu was stunned with her mouth slightly open.

He wanted to explain, but he was caught red-handed and couldn't explain. But Lu Rankong's smug expression and the look in his eyes that seemed to know everything made him feel very upset.

Seeing that the person in front had already climbed far away, he gritted his teeth in anger and chased after him.

The two crawled in the passage for half an hour, but still hadn't reached the end. With every step forward, my knees and elbows rubbed against the rough fabric of the prison uniform, causing a burning pain. The skin was probably broken.

But in this situation, he had to persevere no matter how painful it was, so he held back and didn't say anything.

Lu Rankong in front suddenly stopped what he was doing, turned his head and said, "There is a relatively large space in front, we can rest there for ten minutes."

The two of them quickened their pace and soon finished climbing this passage and came to a big cave.

This is a natural cave of about 100 to 200 square meters, spacious and tall. However, unlike the dryness in the passage, the air is very humid and the soil under the feet is very soft.

Lan Yu pounded her waist and sighed in her heart that she could finally stand up straight.

"It's very humid here, is there any water source?" he asked.

"Shh, listen, there is the sound of water." Lu Rankong raised his index finger and placed it against his lips.

Lan Yu listened carefully and sure enough, she heard the sound of dripping water coming from some unknown direction.

Lu Rankong stretched out his hand and pressed the cave wall beside him, saying, "There are water drops on the cave wall. There must be a water source in this section. If we find the source, we can follow it to get out. Even if we can't get out, we won't die of thirst here."

Seeing that Lan Yu was still pounding her waist, he took off the gas lamp tied to his back and placed it on the ground, "Rest for a while, and continue in ten minutes."

There are also large and small minerals distributed in this cave, and the surface is quite clean. Lan Yu found a big rock to sit on. Seeing that Lu Rankong was not paying attention to her, she turned sideways, lifted up her trouser leg, and checked her sore knee.

The two lumps on the knees had turned blue, and there were several broken spots with red blood and transparent oozing out.

He reached out and touched it, and shuddered in pain.

Lan Yu is the type of person who is very afraid of getting hurt and bleeding. If there are no scars, it's fine. But once there is a wound and bleeding on the surface of the body, the pain will instantly double in her consciousness.

When he was usually hanging on wires during movie shoots, his waist would be covered with bruises after he came down. His assistants would feel so distressed, but he would continue without caring. But if there are multiple small wounds, it would be better if you don’t see them, but if you see them, it will be unbearable.

"Are your bones injured?" Lu Rankong just turned his head and saw him shivering, so he asked.

Lan Yu said: "No..."

Lu Rankong didn't believe it and walked over.

Tears welled up in Lan Yu's eyes. He didn't want Lu Rankong to see them, so he quickly turned his head to look aside.

In Lu Rankong's eyes, it seemed like she was angry with him.

"Why are you still angry? Let me see." Lu Rankong squatted down in front of him.

Lan Yu quickly reached out to unbutton her trouser legs, but he held her down, "Don't move..."

The soft light of the gas lamp showed Lan Yu's two legs in Lu Rankong's eyes.

The fair skin and knees were covered in bruises and purples. Some places had broken skin, oozing bright red blood, which looked particularly hideous compared to the intact skin around it.

He looked at his knees and suddenly felt uncomfortable, thinking that the two bruises were particularly annoying.

"It's just a little purple, just let it dry for a while."

Lan Yu blinked her eyes, forcing back the moisture, turned her head and looked down at her knees, and spoke in a flat tone.

Lu Rankong looked up at him and saw that there was nothing wrong with him. But he was still worried, so he reached out and pressed his knee, saying, "Don't move. I'll press it down."

"Don't..." Lan Yu's voice changed in fear.

He was afraid that Lu Rankong would touch his broken skin, so he held his hands tightly.

Lu Rankong felt a sinking feeling in his heart when he saw that his fingertips had turned white from grasping.

K was trying to endure the pain, the bones inside must be broken.

He quickly recalled the scenes in the corridor and found nothing unusual.

I think it was broken by the rocks when the cave roof collapsed, and it was forced to crawl afterwards.

"Why are you so stubborn? You even endure being injured. Is face so important?" Lu Rankong's voice was filled with anger.

Lan Yu's voice began to tremble, "It's just a minor injury."

"Is this still a minor injury? In your eyes, what kind of injury would make you show a little weakness?" Lu Rankong said in a deep voice: "K, it is not shameful to be injured."

"Do you really think this is just a minor injury?"

Lu Rankong: "Of course not..."

Lan Yu calmed down and said in a nonchalant tone: "But in my eyes, this is not even a minor injury... a minor injury."

Just took a breath in the middle.

Lu Rankong did not expose him and said, "I just looked, the passage ahead is very spacious, there is no need to crawl, I will carry you."

Lan Yu insisted weakly, "I can walk by myself..."

Lu Rankong didn't say much. He lowered his trouser legs from his knees, squatted with his back to him, and said, "Come up. It's not like I haven't carried you before. Why are you being so pretentious?"

Lan Yu turned her head and glanced at his broad back without moving.

Lu Rankong did not urge him and just squatted quietly on the ground. After a while, he felt a hand slowly resting on his shoulder and a warm body pressed against his back.

He stood up with Lan Yu on his back, hung the gas lamp around his neck, and started walking forward.

Lan Yu whispered, "It's not that I'm afraid of pain, I'm just a little tired from walking. Who would not let me carry you when you're so comfortable?"

"Um……"

"I'm a very strong alpha."

"Um……"

The next passage was no longer narrow, as Lu Rankong said, but very spacious. Lan Yu lay on his back, feeling a little embarrassed. She insisted on carrying him even if her skin was broken, and struggled to get off.

Lu Rankong patted him on the butt twice and ordered, "Behave yourself..."

Lan Yu froze and became obedient.

Lu Rankong continued to hold his knee with that hand, but his fingers slowly curled up.

In the silence, neither of them spoke, only the sound of Lu Rankong's soles could be heard. The further we went, the more humid the air became. There was the sound of dripping water everywhere, and small puddles of water formed in the low-lying areas.

Lan Yu recalled the scene when the collapse began and asked, "Do you think it was one of them who did it?"

"If there are Longte people among them, then one of them did it." Lu Rankong replied.

Lan Yu asked curiously: "Why do you say that?"

"how?"

"You used the word 'if'. If there are people from Longte among them." Lan Yu said, "But Longte people are among them."

Lu Rankong looked down at the road under his feet and said, "Do you remember who said that the Longte people were among them?"

Lan Yu: "Military secrets..."

Lu Rankong said: "80% of the military secrets I know are false information."

He jumped over a puddle and continued, "We can't trust the so-called military secrets. We have to make our own judgments and investigate on our own."

Lan Yu leaned on his back and thought for a while, then analyzed: "They are indeed not similar. At least after my careful observation, I didn't find any flaws."

"Yeah..." Lu Rankong continued, "Qiu Dao and Wang Jin are fine. Liu Junjie is the one who took the blame. I have talked to Lin Lin and Qiao Fei about it. They are both completely normal. It's just Chen Zheng..."

"Chen Zheng is fine too." Lan Yu said, "He's a pianist by profession. I noticed that when he was daydreaming, his fingers would inadvertently strike the keys. Last night he played blindly on the bed sheet, and his fingering was very skillful."

Lan Yu waited for Lu Rankong to continue the topic, but he asked, "Can you play the piano?"

"Just a little bit, I can't say for sure."

Lu Rankong asked: "Did you learn this when you were a kid?"

Lan Yu responded vaguely.

One winter when he was seven or eight years old, he was taken to the police station by a kind-hearted person while he was rummaging through a trash can barefoot on the side of the road.

He was wearing a short-sleeved shirt and shorts that were not suitable for the season. He was so cold that his face turned purple and his whole body was shaking.

The police asked him nothing. He knew nothing. He had forgotten his home address, parents, name, and his own background. He just shook his head no matter what they asked him.

"Kid, do you really not remember anything?" the policeman asked in a low voice.

He said timidly, "I don't remember anything."

After a month of issuing a missing person notice without any results, the police station sent him to a nearby welfare home, where Director Lan gave him the name Lan Yu.

He grew up in an orphanage. Although he did not suffer from cold or hunger and received basic education, how could he have the opportunity to learn piano?

But he really liked the piano, so when he grew up he hired a private teacher and learned a little bit in his spare time during filming, but it was just the basics.

Now that Lu Rankong asked him about it, he just gave a vague answer.

After Lu Rankong asked a few questions, he continued the topic he had just started, "If this accident hadn't happened, I wouldn't have been sure if the Longte people were among them, but after this incident, I knew it clearly."

He lifted Lan Yu up and walked around a small puddle. He said, "When we were mining here yesterday, no one had the chance to apply corrosive oil on the cave roof, so it could only have been set up when we were away. All the prisoners acted as a group, coming together and leaving together. No one had this chance."

Lan Yu quickly asked, "You mean, the person who smeared the corrosive oil on the cave ceiling was not a prisoner?"

Lu Rankong said: "His identity allows him to enter and leave the prison freely. He came here alone when no one was here and smeared the corrosive oil on the top of the cave."

"He can enter and leave the prison freely, so is he a prison guard?" Lan Yu felt nervous and her hands around Lu Rankong's neck tightened unconsciously.

Lu Rankong hissed, "Be gentle, be gentle, do you want to strangle me to death?"

Lan Yu quickly let go of her arm.

Lu Rankong continued, "He may not necessarily be a prison guard. He could also be a cook, a handyman, a driver...any person with a free identity."

"There are a lot of people like this. The prison is so big. There must be dozens of handymen alone, right?" Lan Yu asked.

Lu Rankong replied: "There are 350 prison guards, and 97 odd jobs, cooks and drivers in total."

"And the warden..."

"Yes, and the warden."

Lan Yu was silent for a while, then asked, "Then the person who wanted to kill us is the Longte star?"

Lu Rankong said, "Originally, it could be that they are enemies of one of us, but the data shows that none of them have any grudges against anyone else in the prison, nor do they have any conflicts of interest. It should be that Longte guy, and he is coming for the two of us."

Lan Yu fell silent, and after a while, he let out a long sigh.

"What are you sighing for?"

Lan Yu said sadly: "I thought I played the role well enough, but in the end, that Longte alien saw through it."

"A perverted murderer?"

"Um……"

Lu Rankong looked around at the road and said, "You played the role very well, very perverted. I guess my acting skills were not good enough and I was discovered."

"What's wrong with you?"

"It's not obscene enough. A rapist has to stare at other people's butts every day." Lu Rankong said.

Lan Yu snorted, "If that Longte alien slept in the same bed with you, he would definitely not suspect anything."

Lu Rankong laughed and said, "Then he must have a chance to sleep in the same bed with me. He is not you, how can he get into my bed?"

As soon as the words fell, they both felt that there was something wrong with these words and they couldn't help but shut their mouths.

The passage was very long. Although Lu Rankong was carrying the person very easily and did not look tired at all, Lan Yu still wanted to get down.

After all, it's just a broken skin.

"Well, let me walk down by myself." He patted Lu Rankong's shoulder.

Lu Rankong said impatiently, "Are you done yet? Can't you just lie on my back obediently? You can't use force on your feet now, or you'll be a cripple with uneven legs when you grow up."

A lame man with uneven legs.

Can a skin break cause one to become lame or have uneven legs?

Lan Yu wondered if he had made a mistake and was about to ask for clarification when she saw him slowly stop.

Lan Yu followed his gaze and was also stunned.

I saw that a few dozen meters ahead of the passage, the place that was not illuminated by the gas lamp was no longer dark. There was a faint layer of blue light that fell on the wall of the cave like water ripples, gently swaying.

"There is water ahead..." said Lan Yu.

Lu Rankong hummed, "It might be a big pond, let's go and take a look."

After saying this, he quickened his pace and almost jogged forward.

The passage became wider and wider, and the edge of the end could already be seen. Farther away was a pool of water. I couldn’t tell how big it was, and I didn’t know why, but there was light there.

Lan Yu had an instinctive fear of this unknown scene and wanted to tell Lu Rankong not to get close, but this man ran to the entrance and stepped out.

The view suddenly opens up, without any obstruction.

At that moment, Lan Yu felt her breath was choked for a few seconds and her head was dizzy.

The scenery in front of me is as beautiful as a painting.

In the vast space, the boundless underground lake is pure blue, shrouded in a layer of white smoke, like a veil or a thread, floating in the air, quiet and deserted.

The lake water is like a piece of emerald, shimmering with light, reflecting on the walls and ceiling of the cave, casting a layer of soft light with scaly patterns inside the cave.

There were unknown fluorescent insects flying in the sky. Everything seemed unreal and was extremely beautiful.

Lu Rankong was obviously also shocked. He stood there silently. After a while, he came to his senses, walked slowly forward, and stood on a big rock by the lake.

Lan Yu held her breath and murmured, "I never thought there would be such a big lake underground, and it's so beautiful."

His voice was very low, as if he was afraid of disturbing the silence.

"This is Pelican Lake, the disappeared Pelican Lake." Lu Rankong sighed: "The blue gem Pelican Lake of Quyu Star did not disappear and dry up, but sank into the ground."

"How did it sink into the ground?"

Lu Rankong's voice was also very low. "I don't know. It could be due to changes in the earth's crust, or there are too many mines, which destroyed the surface of the earth, causing the lake water to leak down."

"Why does the lake water shine?" Lan Yu asked.

"Pelican Lake, the blue gem from the star Qu Yu. Gems will glow, right?" Lu Rankong explained.

Lan Yu frowned and said, "Gemstones only glow when exposed to light. How can they glow by themselves?"

Lu Rankong continued to explain: "This gem is classified as a night-shining pearl, a blue night-shining pearl from Quyu Star."

Lan Yu: ...

He gently put Lan Yu on the big rock and said, "This cave is a little strange. I'll go check out other places. You sit here and wait for me."