"A few decades ago, Death Valley was not called Death Valley, it was still green mountains and trees, and the grass and trees were ......."

Professor Zhang said slowly: "At that time, I was still young, and I had done a few big things as soon as I debuted, and I was full of confidence. That time, I was entrusted by the old man to come here to do one thing, and solve a few people by the way. At that time, the three Mo brothers who were lying below were also ......"

Professor Zhang told the story of the past as if telling a story, and Ziyang listened with bated breath.

Although Mo Laosan and Ah Chong had told him sporadically about what happened in the tomb of Emperor Zhenwu back then, it was the first time he had heard Professor Zhang, the person concerned, personally narrate this hidden history.

Professor Zhang said roughly the same thing as Mo Laosan, he talked about the Mobei Shuangxiong, the three brothers of the Du family, and Mo Laosan—of course, he also talked about the thrilling fierce battle in the tomb.

Professor Zhang let out a long sigh, "The Mobei Shuangxiong is worthy of being a hero among people!" I didn't expect that the trap I had carefully prepared would not work, and that the Kitano brothers would have escaped in that situation, and I myself was seriously injured and almost died.

When I woke up, I found that there was no one else in the tomb except the bodies of the three brothers of the Du family, and even this Mo Laosan was gone. Later, I searched through all parties involved for several years, but there was no news of Mobei Shuangxiong or Mo Laosan.

After that incident, I came to the tomb of Emperor Zhenwu a few more times, the most recent of which was more than ten years ago. At that time, I made a new discovery, there was an underground fortification of the Japanese Kwantung Army next to this tomb! Coincidentally, this huge underground fortification is next to the tomb of Emperor Zhenwu, and the nearest place is only less than a meter. Back then, if the Japanese soldiers dug a few more times, they would have dug into the tomb, and there would not have been so many things later.

Later, I managed to enter the underground fortifications and found these stored gas bombs, and I did not know what to do with them, but while I was hesitating, I suddenly heard the news that a Mongol was preparing a team to rob the tombs.

The place where I stayed back was called Sunrise Fort – I think you're all aware of it. At that time, Risheng Fort was not as large as it is now, but some chaotic people lived here, and the gossip spread quickly, and the news of the young Mongol's recruitment soon spread throughout the town.

I was also curious at the time, is there a business of tomb robbing in Mongolia? After secretly following for a few days, I found that the four tomb robbers known as the 'Four Heroes of the Prairie' are not reckless straw bales, judging from their early preparations, they are very professional in tomb robbing, and they seem to have some skills. ”

When Professor Zhang said this, Asgen's face was ugly, and it was obvious that the "Four Heroes of the Prairie" in Professor Zhang's mouth was referring to the four Asgen brothers.

This is not very surprising to Ziyang.

Timur once fell out with Asgen because of his tomb robbery, and later Asgen took the other three brothers away, and Timur broke off the father-son relationship with them in a fit of anger - Ah Chong also told Ziyang about this, but he didn't expect them to have such a thing back then.

Professor Zhang continued, "At that time, many people who came to Risheng Fort had the dream of making a fortune, and no one cared whether they made a fortune by robbing tombs or mining to make a fortune. Soon the Four Heroes of the Grassland organized a team of more than a dozen people, and they entered the valley where the tomb of the Emperor Zhenwu was located under the banner of searching for gold mines—of course, this place was not called Death Valley at that time.

After watching them enter the valley, I suddenly understood that the secret of the tomb of the Zhenwu Emperor could no longer be hidden. Today, the four heroes of the grassland will find here, tomorrow maybe the four dogs of the grassland will also find here, and the day after tomorrow maybe the four cats of the grassland will also know...... More and more grave robbers will come here. I can kill a batch, but I can't kill the people who come after me. ”

Professor Zhang said lightly, and the word "kill" came out of his mouth as common as "eating". Zi Yang was terrified when he heard it, and Professor Zhang, who revealed his true face, was completely different from the amiable old man before.

Professor Zhang continued: "At that time, I prepared a batch of explosives, originally to seal the tomb door of the tomb of Emperor Zhenwu. But I know that for professional tomb robbers, as long as the tomb is exposed, even if the palace gate is sealed, they will have a way to enter - not to mention that the four heroes of this grassland are many powerful and well-prepared, as long as they are given a few days, the King Kong wall outside can be penetrated.

Then it occurred to me that if I detonated these thousands of tons of poison gas bombs in the underground fortifications, what would be the effect? ”

Professor Zhang suddenly asked for a long time: "Su Rui, Miss Su, I know that you are also quite accomplished in chemistry, what are the characteristics of mustard gas?" ”

Su Rui glanced at Zi Yang, hesitated for a moment and said in a deep voice: "Mustard gas, also known as the king of poisonous gas, is volatile, highly permeable, stable, and has a high freezing point. If used in a special geographical condition such as Death Valley, the toxicity will last for at least a few decades or even hundreds of years. ”

Professor Zhang laughed: "Yes, as long as I detonate the poison gas bomb in the underground fortifications, not only the tomb of the Zhenwu Emperor, but the entire valley will become a place of death!" At that time, any living creature that sets foot in this place will be doomed! ”

When Professor Zhang said this, a chill couldn't help but rise in everyone's hearts. They finally knew why the whole valley was filled with deadly poisonous gas.

Professor Zhang continued to say slowly: "When the Japanese Kwantung Army built underground fortifications, many ventilation holes and exhaust ducts were opened in it. They did everything they had to do, and what I needed to do was simple, detonate the explosives. As long as I move my fingers, no one will be spared from the mining team that is working hard to dig graves outside! ”

When Professor Zhang said this, Asgen trembled uncontrollably.

Ziyang suddenly remembered that while heading towards Death Valley, Asgen had said that there was a mining team that had been wiped out here, and that there had been people who had escaped alive but died within a few days—he had seen with his own eyes how the survivors had died tragically.

Maybe Asgen was the survivor, but how did he escape? Why wasn't he gassed?

Professor Zhang continued: "After the explosives exploded, thousands of tons of poison gas poured to the ground through the exhaust port, and the whole valley was instantly covered with death.

At that time, I also deliberately prepared an extra pair of gas masks, I didn't want to kill the entire mining team, on the one hand, I needed to leave a living mouth, let him be a witness, spread the news of Death Valley;

On the other hand, I am also curious about what happens to people when they are faced with death and despair. ”

When Professor Zhang said this, Asgen suddenly shouted, "Shut up! Say no more! ”

Professor Zhang continued to say slowly, as if he hadn't heard: "When I threw the gas mask in front of them, the eldest brother of the four heroes of the grassland, the Asgen brother, snatched the mask and put it on his head without hesitation, and he watched very calmly as the three brothers struggled, wailed, and festered in front of him......

Professor Zhang's voice was as gentle as ever, but everyone felt a chill in their hearts.

Ashgen had green tendons on his forehead, and he gritted his teeth and said, "The mysterious person who saved me back then was you!" ”

Professor Zhang said coldly: "Don't make a mistake, I'm not saving you, I'm just using you - just like our cooperation today, I need you alive so that you can do things for me." ”

Professor Zhang paused at this point, and the surroundings fell into a deathly silence.

Zi Yang looked at Asgen, who was pale sitting in front of him, and couldn't help but take a few steps back.

Professor Zhang suddenly said: "Qingwu, Asgen can not even change his face when his brother dies in front of him, do you say that I should cherish such a talent?" ”

"Yes." Song Qingwu opened his mouth and said.

"What's it!?" Professor Zhang shouted.

Suddenly, Song Qingwu let out a miserable scream! Zi Yang saw a black shadow flying overhead, falling straight on the cement floor in front of him, and it was Song Qingwu when he looked closely.

Song Qingwu looked badly injured, lying on the ground unable to move, blood gushing out of his mouth.

"Song Qingwu! Last time, I ordered you to deal with the traitor Kitano Chong with Chen Ruixi, but you secretly let him go! Is it because he saved your life that you can't bear to do it?! Do you think of him as a brother!? ”

Professor Zhang's scolding voice became louder and louder, and Song Qingwu lay on the ground and wailed:

"Master, I don't! I tried my best! ”

Professor Zhang snorted coldly: "Do your best? I don't need someone who does my best, but someone who can get the job done!

You, like Asgen, can't complete the mission, and you're of no use to me! ”

"Kill him!" Professor Zhang gave an order, and a burst of fire came out of the submachine gun on the "Da Da Da", and the blood on Song Qingwu's body was splashed, and he twisted on the ground a few times before he moved.

Zi Yang and Su Rui looked at each other with shocked expressions!

They didn't expect Professor Zhang to be so ruthless, and he didn't hesitate to kill the proud disciple who had been cultivated for more than ten years.

After killing Song Qingwu, Professor Zhang looked at Asgen condescendingly: "Now, it's your turn." ”

Asgen anxiously shouted, "Wait a minute! Mr. Zhang! I've done what I had to do as we agreed, why are you still killing me! ”

Professor Zhang said coldly: "Appointment? The first thing I agreed with you was to kill Kitano Chong, did you do it? Do you think that handing over these characters who can only do three-legged cat kung fu to me will be considered a complete task? ”

Asgen was suddenly speechless.

Zi Yang was stunned: "Wasn't Ah Chong already killed in the robbery hole?" Why does Professor Zhang say that? ”

Professor Zhang continued to ask: "Asgen, I said that if you kill Kitano Chong, you will see people alive and corpses when you die!" And now what about others? ”

"I'm here!"

Suddenly, a familiar voice came from the shadows.