"Act tonight!" In a dark and secret place in Nanjing City, such a muffled sentence came out.

An hour later, the night was dark.

In the core area of the Firearms Bureau, a black shadow carefully avoided the strict interrogation along the way, and kept approaching the most central area.

This dark shadow is one of the Sirius agents that Dolgon secretly sent to Nanjing City a few years ago.

Back then, in order to avoid the investigation and defense of the Jinyi Guard's secret agents, it took half a year for Sky Wolf to successfully send several people into the Firearms Bureau, and it took nearly three years to get the complete set of refining methods for the Shenwu field cannon that had been mass-produced.

Now, the Celestial Wolves don't have another few years to lay out slowly, and Dorgon has only given them a month, too urgent!

"What people!" Before this Manchurian spy could get close to the core of the central area, he was discovered by a brocade guard agent who was hiding in the shadows.

Not good! It's been discovered! The Manchurian spies were shocked and immediately retreated.

"Boom!" A red signal firework exploded in the sky.

In just two or three breaths, there were guards and a large number of brocade guards in all directions.

"Thief, be caught!" A guard shouted at the full crowd of spies who were surrounded.

Seeing that they couldn't escape, the Manchurian spies decisively bit the poison sac in their mouths, and the seven orifices bled to death!

The guards and brocade guards who were present were shocked, and someone immediately stepped forward to test the corpse's snort.

"Dead!" Everyone's face is not good-looking.

Especially the Jinyi Wei secret agent who was present. The emperor once had a holy decree, and their protection of the core area of the Firearms Bureau was no less than that of the palace, but it was really a dereliction of responsibility to let a thief get into this place before being discovered.

"Hurry up and report to the commander, an unknown thief has broken into the core area of the Firearms Bureau and has committed suicide!"

Because the Manchu Sky Wolf Spy has all changed to Han hair ornaments in order to facilitate the situation in the Ming Dynasty, Jinyiwei did not see the identity of the Manchu spy who committed suicide.

The thief's failure to break into the firearms bureau and commit suicide attracted the attention of Peng Cheng, the commander of the Jinyi Guard, who personally brought people to investigate.

In the end, it was found out that this thief was an ordinary craftsman of the Firearms Bureau, but since he was an ordinary craftsman, it was not ordinary for him to sneak into the core area of the Firearms Bureau so secretly.

Peng Cheng is worthy of being the secret probe of the Ming Dynasty Jinyi Guard, and his methods are amazing, and he has even let him in just one day, several people who have been implicated with suicide thieves, and some craftsmen who have secretly accepted money from suicide thieves.

Peng Cheng was sure in an instant that the things inside were by no means simple.

brought all the people involved to Jinyiwei Prison for strict interrogation, and the information that was tried shocked Peng Cheng, and without saying a word, he entered the palace with the important information that came out to find Zhu Cijiao.

"The Manchurians must be spying on the mysteries of my Great Ming Weapons Bureau!" Zhu Ci staggered at the information in his hand, and was shocked and angry for a while.

Judging from the newspaper, the field cannon that had been produced was sold by some craftsmen involved in the production, and it is likely that the Manchurians had already obtained the technology of field artillery.

Although the chemical composition of the new gunpowder and primer is higher, it is not pure technology, there is already a part of science in it, as long as the most important steps are grasped, it is impossible for the Manchurians to really get the technology anyway, but they have to guard against it.

Furthermore, if the field cannon has been leaked, the alloy steel and anti-recoil devices may also have leaked.

Once the Manchurians are equipped with field cannons weighing only more than 400 catties, their strength will be doubled, adding a lot of difficulty to the Northern Expedition in the future, and it will also make the Northern Expedition army suffer heavier losses, which is the main reason for Zhu Ci's anger.

"The firing pistol and the new cannon have been developed, the new gunpowder and primer will be ready for mass production, the protection of the Firearms Bureau will be doubled, and in addition, the full number of spies still hidden in the city must all be found out to prevent future troubles!" Zhu Ci ordered solemnly.

"Yes!" Peng Cheng retreated.

On that day, a large number of Jinyi guards crossed the streets and went to various places inside and outside the city to check all suspicious people.

It was still that dimly hidden place, where several Man-filled Sky Wolf agents gathered.

"My lord, the spy failed, and almost all the ideas in it were clear, and only one person survived. Daming's protection of the core area of the Firearms Bureau is no less than that of the inner courtyard of the palace, and it is impossible for our spies to have a chance to sneak in! A full-man spy said.

"The time given to us by the regent is only a month, and now that five days have passed, we don't have time to wait for the mass production of those two things and then slowly lay them out, so we have no choice but to change the method!" The leader of the wolf, Mandardo, was originally a Niu Lu of the White Banner, who was valued and cultivated by Dolgon, and became the leader of the secret agents under Dolgon's command to spy on intelligence.

Mandardo never questioned Dorgon's orders and carried them out meticulously, so Dolgon said that he would only give him one month, and he would only count one month. In such a short period of time, he could not obtain new gunpowder and primer in the same way as he obtained field artillery technology, so he had no choice but to take dangerous moves.

"Please show me!" Several Manchurian spies all looked at Mandado.

"Since the Akito has defended the core area of the Firearms Bureau so tightly, let's give them a draw from the bottom of the kettle! The head of the Firearms Bureau is Chen Xin, since he is in charge of the Firearms Bureau, he must know the full set of techniques of the two secret weapons, as long as he is brought back to the Qing Dynasty, and then pry his mouth open, we can't ask what he wants? Mandardo laughed.

"But my lord, since Chen Xin is the head of the Ming People's Firearms Bureau, it is impossible to have the protection of Jinyi Wei secret agents by his side, and even if we capture Chen Xin, it will not be easy to bring him back to the Qing Dynasty!" A Manchurian agent asked.

Mandardo smiled indifferently and said: "Chen Xin is a living person, not something that can be hidden, since he enters and exits the Firearms Bureau every day, even if there is protection around him, it is impossible to be more stringent than us entering the core area of the Firearms Bureau to steal, there are always many flaws that can be caught by us." As for how to bring Chen Xin back to the Qing Dynasty, Nanning Cheng is close to the river, and it will be easy to do after crossing the river, as long as we plan carefully, it is not a problem! ”

Chen Xin's home is very close to the Firearms Bureau, which is convenient for Chen Xin to go back and forth to the Firearms Bureau every day, as the head of the Firearms Bureau, he has won Zhu Ci's trust, and Mandado should think that Chen Xin knows everything, in fact, Chen Xin has indeed seen the drawings of all the firearms in the Firearms Bureau, and Mandado is not wrong to hit Chen Xin with his idea.

After catching Chen Xin, Mandardo also thought about it, and he had already come up with a set of feasible strategies in his heart.

"Since the adults are sure, we will listen to the adults!" The Manchurian spies eventually followed Mandarto's advice.

Immediately, the Manchurians began to discuss the details of capturing Chen Xin.

...