Xu Yuntian took out his telescope and saw a boat next to Crescent Island and six people wearing security uniforms guarding him. The front should be the front of Crescent Island.

"This is the front of Crescent Island. Let's go around to the back of Crescent Island to land on the island." Xu Yuntiandao.

The speedboat was driving around the outer periphery of Crescent Island. When passing through the side door of the island, Xu Yuntian used a telescope to observe and found that there were also people guarding the side of the island.

About ten minutes later, the speedboat arrived at the back of the Crescent Island. Xu Yuntian asked Yang Feng to stop sailing and took out his telescope to observe the Crescent Island.

He found that there was no one guarding the back of Crescent Island. The reason why there was no one guarding it was because it was a cliff, and the sea was below the cliff.

The speedboat reached the bottom of the cliff, and Xu Yuntian looked up at the top of the cliff, "It seems that we can only climb up from here!" Xu Yuntian frowned slightly.

"Brother Tian, ​​I will climb up first, then throw down the rope, and you and Xiaoyu will climb up again." Yang Feng pointed at Xu Yuntiandao.

Xu Yuntian nodded and said, "Okay, you go up first."

Yang Feng took out the portable thrower, hooked the trigger toward the cliff, and with a bang, the spear flew out and landed above the cliff.

Yang Feng pulled the rope and felt that the spear hook was catching the stone above the cliff, and then grabbed the rope and crawled towards the cliff.

After a while, Yang Feng climbed up the cliff. He picked up the spear hook, hooked the spear around the root of a tree, then walked to the cliff, shouting to Xu Yuntian and Yan Xiaoyu below: "Brother Tian, ​​Xiaoyu, you can climb up!"

"Brother Tian, ​​I'll go up first. After I go up, Yang Feng and I will pull you up." Yan Xiaoyu pointed at Xu Yuntiandao. He knew that Xu Yuntian's gunshot wound had not healed yet. If he climbed onto the cliff, the wound might crack.

Xu Yuntian understood what Yan Xiaoyu meant and nodded, "Okay."

Yan Xiaoyu grabbed the rope and climbed quickly towards the cliff. He quickly reached the cliff and shouted to Xu Yuntian: "Brother Tian, ​​are you doing well? Let's pull you up!"

Xu Yuntian tied his waist with a rope, then raised his head and shouted to the top of the cliff: "I'm ready, you can pull the rope up!"

Yan Xiaoyu and Yang Feng grabbed the rope, and they pulled the rope up hard. After a while, they pulled Xu Yuntian onto the cliff.

Standing on the cliff, you can see the panoramic view of the entire Crescent Island. Xu Yuntian held a telescope and saw a building in the middle of Crescent Island. The walls of the building were hung: "Tianyu Group, Marine Biopharmaceutical Research Base."

There are security guards patrolling around the building, with walls on all sides, and the walls are equipped with power grids and cameras, which are very tightly defended.

Xu Yuntian observed for a moment, put down the telescope and said, "The building in front is a secret experimental base. There are security patrols around the building. The defense behind the building is slightly weaker, so we sneak in from behind the building."

Yan Xiaoyu took the telescope and frowned and said, "Brother Tian, ​​this building has three floors in total. I wonder which floor Li Liangchen is locked up and which floor is the secret laboratory?"

"This is easy to deal with. When we get into the building, we will catch someone and ask." Xu Yuntian said with a smile.

The three of them immediately approached the back of the secret experimental base building and stopped about ten meters away from the building because there was a camera on the wall of the building, so they could not get too close, otherwise they would be discovered if they entered the camera range.

Xu Yuntian took out the jammer, pressed the button to activate the jammer, and freeze the camera for one minute.

"Okay, I'll freeze the camera for one minute, and we can enter the backyard of the experimental base building by climbing over the wall." Xu Yuntian whispered to Yan Xiaoyu and Yang Feng.

Yan Xiaoyu and Yang Feng nodded together, and then the three of them immediately quickly headed towards the building wall. Under the wall, the three of them quickly climbed over the wall and entered the backyard of the building.

There was no one in the backyard of the building, and there were drug residues piled on the ground, emitting a strong smell of medicine. The three of them covered their noses.

"Damn! The medicine residue is all collapsed in the backyard! It smells so bad!" Yang Feng couldn't help but complain.

"Shh! Someone is here!" Xu Yuntian hurriedly reminded.

As soon as he finished speaking, a man in work clothes was pushing a tricycle with medicine residue on the car. He was the staff member who came to pour the medicine residue.

"Yang Feng, go and catch this guy!" Xu Yuntian whispered to Yang Feng.

Yang Feng nodded, and he quietly approached the man. While waiting for the man to pour the medicine residue, Yang Feng suddenly rushed over, pinched the man's neck with one hand and covered the man's mouth with the other hand.

The man was frightened and struggled. Yang Feng immediately threatened to his ear: "Damn it, I will break your neck if I move!"

The man was so scared that he didn't dare to move, so he let Yang Feng drag him to the place where Xu Yuntian and Yan Xiaoyu were hiding, and then whispered: "I can warn you, if you dare to shout, I will kill you!"

Then Yang Feng let go of the hand covering the man's mouth, then pulled out the dagger and placed it on the man's neck. The man was so scared that he trembled all over and did not dare to make a sound.

Xu Yuntian looked at the man and said with a smile: "As long as you answer my question honestly, I will spare you."

The man nodded quickly and said, "Okay, I will answer your question honestly."

"Where is the secret laboratory of the base?" Xu Yuntian asked quietly.

The man hurriedly said, "The secret laboratory is on the third floor, with the pharmaceutical room on the left and the laboratory on the right."

Xu Yuntian nodded, "Where are those ** experimenters being detained?" Xu Yuntian asked.

"**The experimenter was detained on the right hand side of the second floor." The man replied.

"Where are there many people guarding me?" Xu Yuntian asked.

"There are four people in the corridor, four people in the door of the detained experimenter, four people in the corridor, a total of twelve people." The man replied, he had to clean up the residue and corpses every day, and was very familiar with these places.

Xu Yuntian continued to ask about the internal situation of the building, basically mastered the layout of the secret experimental building, and then made a gesture to Yang Feng. Yang Feng immediately gave the man a palm in the ear, and the man fainted immediately.

Xu Yuntian thought about it and then whispered: "There are more than 40 security guards in the entire Secret Experiment Building, and the most security guards on the first floor are twenty, and there are twenty-four ones on the second and third floors."

"We cannot kill from the first floor, as it will alarm the security guards on the second and third floors. Therefore, we climbed up to the second floor and first went to the detention area to rescue Li Liangchen and others, and then went to the third floor to blow up the secret laboratory on the third floor." Xu Yuntian said his action plan.

Yan Xiaoyu and Yang Feng nodded together, "Brother Tian, ​​let's climb up the second floor from the east of the Secret Experiment Building, which is easy to climb there." Yan Xiaoyu pointed to the east of the Secret Experiment Building.

To the east of the Secret Experiment Building is an open-air platform, which is only more than three meters away from the first floor. There is also a drainage pipe next to it, which is easy to climb.

Xu Yuntian nodded, "Okay, let's act immediately. We must quietly knock down the twelve security guards on the second floor within three minutes. We must not disturb the security guards on the first and third floors, otherwise we will be in trouble if we are attacked from both sides." Xu Yuntian said quietly.
Chapter completed!