Chu Han didn't lose his sense of propriety because of the urgency of looking for his father's whereabouts. He was very aware of the urgency of the time at the moment. It was difficult to find such a large place in an hour. At the moment, he had no time to look through everything one by one. As for what consequences would be brought to this institute or even the Nandu base, Chu Han had no time at all Think with your heart.

Chu Han's speed is very fast. In addition, Wangcai immediately joined in the action. A large number of rooms on the circular corridor were swept in just 20 minutes. When Chu Han walked around a half circle to meet Wangcai, he suddenly noticed another wrong place.

"Chu Han!" However, Wangcai didn't have any doubts at all. On the contrary, he was excited and yelled at Chu Han: "there's no one here, and I'm as fast as you. I've come around half a circle! Oh? Chu Han, what are you looking at? "

The cold light in Chu Han's eyes flashed by and looked at the wall opposite the door that he had just walked out of the room: "we are not fast. Don't you think the number of rooms here is too small?"

"That's not enough?" Wangcai rolled his eyes in surprise: "we NIMA have cleaned up more than 100 rooms. Lao Tzu's private space is full of that messy waste paper, I don't know what it is."

"But each room is very small, and most of them are ordinary personal offices. Most of them have been neglected for a long time, and there is a thick layer of dust on the desk." Chu Han sipped his mouth, and suddenly without warning, he quickly walked to the other side of the corridor: "did you see the door on this wall when you came over?"

"What?" Wangcai hurriedly followed Chu Han's steps and said, "which wall? Isn't there doors everywhere? "

"Wrong!" Chu Han's tone was cold and serious: "all the rooms are on the periphery. Here is a circular circular corridor surrounding such a large area in the middle."

With Chu Han's footstep, under the eyes of Wangcai, he suddenly pointed to the huge cylinder wall in the middle: "what's hidden in this wall?"

"Ghost?" Wangcai almost blurted out.

Chu Han shook his head speechless, and expressed his inability to accept Wangcai's increasingly close to human thinking. In contrast, he seemed to be the most emotionless one.

"But how can we get in?" Wangcai followed Chu Han all the way, but he didn't dare to fall down. The place seemed quiet and there was no one there. But the blood smell was so creepy that not only Chu Han but also Wangcai could smell it.

Just at the moment when Wangcai asked about this sentence, Chu Han did something to make it more creepy!

Boom!

The huge black axe did not discuss with anyone at all, but directly cut it on the wall with one fell swoop. At the same time -

crash!

The wall collapsed almost instantaneously, collapsing on the ground, stirring up a thick smoke, directly breaking a big hole.

Wangcai's whole person is like being struck by lightning, staring at the dust rolling ragged wall in front of him, and breaking through without finding the door?

"I'm in trouble with Chu Han! What to do now Wangcai immediately screamed: "he Shang said that you can't cut things. There will be an alarm. Ah, the front just said that you forgot behind. Now even the wall has been smashed. Are you crazy? You, when the alarm goes off, all the people come, even if you are seven steps away Ah

All of a sudden, Wangcai's chatter suddenly stopped, some silly eyes looked around, a silence, nothing happened.

Chu Han, on the other hand, is a brush to take the Shura Tomahawk off a side wall, accompanied by a click sound.

"Where's the alarm bell?" Wang Cai asked dully.

"It's smashed." Chu Han's reply is light and light. Wang Cai looks straight ahead without a look in his eyes.

Wangcai just want to continue to ask the words have not said, then swallow back, because with the fall of dust, this strange wall finally revealed its original appearance.

The world behind the wall is beyond all the imagination of Chu Han and Wangcai. It is a dark tunnel that is too deep into the underground. It is like a huge well that goes straight down. From the top to the bottom, you can't see the bottom. Moreover, within the limited line of sight, the circular wall at this entrance is quite smooth, which is the first time Chu Han saw it and said it was a tunnel Not the cause of the deep hole.

It's hard to imagine how much money and material resources are needed to make this place so deep, and it's hard to believe that it was made in the end of the century.

The reason why this wall is so strange and completely wrapped is to cover up the tunnel that leads to where!

Wheel!

Wangcai swallowed his throat nervously: "I don't think it's something that can be built in Nandu base."

"So I just made a bet." Chu Han's voice has never been dignified: "it seems that I won the bet, shangguanrong really did not know the base under his jurisdiction, unexpectedly hiding such a place."

"Do you bet that Guan Rong knows everything about the Institute?" Wangcai was a little nervous and asked casually.

"No Chu Han immediately denied, the next sentence almost let Wangcai collapse: "I bet that the alarm is independent, not connected with the outside of the Research Institute.""So?" Wangcai said

"The alarm has been broken for so long, and nothing happened, so it's just a cover to scare off guys like me who don't know what's going on in the wall." Chu Han sneered: "since such a secret place is not connected with the guards outside, it is easy to infer that this place was built without the cover of shangguanrong."

"Don't tell me you're going down." Wangcai gave up following the rhythm of Chu Han's thinking against the sky. His expression was full of refusal and pointed to the dark tunnel below.

Chu Han didn't answer at all. He just threw Wangcai into his pocket. Then a rope with a hook was suddenly taken out of the dimensional space and began to climb down without saying a word.

Such a secret tunnel, before smelling the bloody smell is also from below, it can be seen that this place is definitely the biggest secret of the research department.

Maybe dad's down here!

However, Chu Han, who had been climbing down rapidly, was puzzled that the Research Institute of Nandu base should not be under the command of Shangguan Rong. How could the situation exceed the expectation?

Who is in charge of the Research Institute of Nandu base? Where did he have the money to build such a large underground tunnel? What's more, the construction is only bound to cause great noise. In what way did the other party hide from shangguanrong?

At the same time, in the monitoring room of the Research Institute on the first floor of the ground, originally quiet and silent, and the three people on the ground were waiting nervously. As a result, a sudden tremor and the sound of something breaking in the ground suddenly made Chu Han's sweating and Shang suddenly pale.

"Damn it, boss. Don't be so violent, will you?"

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