Gao Yue brought Zhang Chun and to the living quarters.

This window was tightly pulled, and even in broad daylight, he couldn't forget to see a single detail of it.

It looked like there was a ghost. Zhang Chun looked at Lin Xue, signalling her to be ready.

The two sneakily turned on the safety of their guns.

Gao Yue walked forward and knocked on the door.

After another 5 minutes, the room's door finally opened as no one had any more patience.

A handsome man of about 30 years of age. "Yawning, he opened the door in his pajamas." Sorry, I'm taking a nap. What can I do for you? "

"The two of us have met before, I am the professor's assistant, Gao Yue." Gao Yue immediately greeted.

"Oh, it's you. What can I do for you?"

"It's nothing serious, it's just that the security in Military Engineering Institute has been rather tight recently. I'm currently leading two new guards to survey the situation." Gao Yue helped hide the identities of Zhang Chun and Lin Xue.

After all, when two senior officials came here to investigate, it was easy for them to alert the enemy.

"Please come in." The other party agreed immediately and stepped aside.

Zhang Chun Huiyang did not hold back and directly entered. It was a small, single room, so he could see to the end.

There was nothing unusual about it.

Zhang Chun shifted his attention away from the room layout and looked at the details carefully.

Very quickly, Zhang Chun noticed something special.

Several pairs of shoes on the shoe rack had yellow clay stuck to them.

It was very fresh and looked like it had just been glued on for a while.

According to what the man said just now, he was taking an afternoon nap. How could there be such fresh soil?

Furthermore, there was no yellow soil on the ground of Military Engineering Institute!

Zhang Chun intended to attack him, but if he was too far away, he might alert the enemy.

"If there's nothing else, then we'll be leaving first." Zhang Chun looked at Lin Xue.

Lin Xue understood what was going on and walked to the side of the door with Zhang Chun on his left and right.

When the man heard that the trio wanted to leave, he immediately got up to send them off.

When the man opened the door, Zhang Chun suddenly made a move from behind, and the two blades slashed towards the man's neck.

Zhang Chun's attack this time was fast and ruthless, the other party was naturally unable to react, and only snorted before falling.

Of course, Zhang Chun kept guard, and did not kill him.

"What are you doing?" Gao Yue was shocked.

"This guy has a problem." Zhang Chun opened his mouth and found a tooth!

Zhang Chun grabbed the tooth and forcefully opened it. There was indeed poison inside!

This method was exactly what the outside members of the assassination association loved to do! It seemed like this person was from the assassination association!

"Is this poison?" Lin Xue looked at Zhang Chun's string of strange movements, and asked curiously, "Try to poison all of us with this as much as possible, it doesn't seem to be enough."

"That's right. If these people fail the mission, they will swallow the poison in their teeth." Zhang Chun replied.

Lin Xue looked at Zhang Chun with a profound gaze, "It seems like you are very familiar with these people."

Zhang Chun remained calm, "Didn't I already say that I was a mercenary before? I have interacted with these people before."

"According to their habits, they must have brought some heavy weapons with them. Let's see if we can find them." Since he could not delve too deeply into this topic, Zhang Chun changed the topic.

Zhang Chun picked up the shoes and showed the soil on them to the two.

"This should be some kind of underground clay. I suspect that the killer has dug an underground passage here."

"Assassin?" Lin Xue heard the loophole in Zhang Chun's words, "Isn't he an agent?"

"Well, we mercenaries are used to calling everyone assassins." Zhang Chun could only play tricks on him.

Zhang Chun tied up the special agent and started to search for the right room.

There was indeed a hidden underground entrance under the bed!

"What's going on?" Gao Yue took out a flashlight from nowhere and lit up the underground passage.

The hole was more than two meters deep, and it was curvy, making it impossible to see what was inside.

"Gao Yue, go outside and call someone else over." Zhang Chun pushed Gao Yue away.

After all, Gao Yue was just an ordinary researcher who did not know how dangerous it was.

"You wait outside. I'll go inside and take a look." Zhang Chun took out his gun, and without waiting for Lin Xue's reply, he jumped straight into the cave.

The tunnel of the cave was very long, and although it was curved, it went all the way down.

Furthermore, Zhang Chun could still feel the flow of air inside the cave, the enemy had carefully built the underground passage.

Zhang Chun crawled for more than ten minutes before he arrived at a wide area.

The place in front of him was filled with explosives!

It seemed like this place was directly beneath the research facility, and these damned assassins were actually planning to blow up the entire research facility!

But the professor's daughter's "boyfriend" had only been here for less than a month! It was impossible for him to build such a huge secret passage!

Zhang Chun casually took out some explosives as evidence and crawled out.

Lin Xue looked at the explosives that Zhang Chun had taken out and his face turned pale, "Why would there be explosives?"

"That's not the only thing inside. I'm afraid there's more than 300 kilograms of TNT inside. It's enough to blow up the entire research building!"

Zhang Chun patted the dirt on his body, but he said it easily. The equivalent of this bomb was still a small case for him, and he had long since gotten used to larger ones.

But Lin Xue was not light with them, and her thoughts started to blur.

"Then what should we do?" Lin Xue could no longer think of a countermeasure.

"Don't say anything for now, don't tell anyone else. "Wait a minute, find a few trusted brothers and move these explosives to a safe place while it's still dark." Zhang Chun pondered for a moment and thought of a countermeasure.

"Also, throw this guy into the intensive care unit and isolate him. Tell the professor's daughter to come to the hospital and see him. "

"What's wrong with the professor's daughter?" Lin Xue did not understand.

"We have to secretly control the professor's daughter. I'm afraid she's already surrounded by agents." Zhang Chun said out his guess.

"This place must have been built by several people. Only the professor's daughter's friends came and went. "

"That's why we have to say that this guy is seriously injured and hospitalized, attracting the professor's daughter and her friends over!"