Fang Bu raised his eyebrows, just two horse harnesses can make Sima Yi flock to it? However, because Cao Liang's secrecy work is quite strict, it is estimated that Sima Yi does not know what he wants to know, it seems that the sense of mystery is really a good thing, and the more he doesn't know, the more mysterious things are, the more attractive they are.

Of course, if Fang Bu really knew the true purpose of these two harnesses, he wouldn't think so, because seemingly simple things have an extraordinary effect, which is too helpful to improve the combat effectiveness of the cavalry, which is also the reason why Cao Liang has done the best in secrecy.

However, for Fang Bu, what is the purpose of these horse harnesses is not what he needs to care about, all he has to do is to do a good job of guarding and not letting these things fall into the hands of Sima Jun.

However, there are only a thousand days to be a thief, and there is no thousand days to prevent thieves, and it is difficult to have a mistake in Baimi, Fang Bu can only try his best to protect, but the result is not something he can predict.

Cao Liang naturally understands this truth, Sima Yi will definitely do whatever it takes to spy on this secret in order to learn this secret, the black wolf can't do it, it may be replaced by a white wolf, in short, if the goal is not achieved, he will never give up.

And the state army has to protect three places, 30,000 horses, if you add the saddle and stirrup production place and transportation channel, this scope is too wide, every link may have problems, even if Fang Bu mobilizes all the manpower, sleepless, it is impossible to do everything, Sima Jun's spies will always do everything possible to complete this task.

This undoubtedly poses a big problem to Fang Bu, even if Fang Bu has three heads and six arms, and seventy-two changes, I am afraid that he will not be able to prevent Sima Jun's meticulous work to spy on.

Cao Liang pondered for a while and whispered a few words to Fang Bu, who immediately understood, nodded again and again, and left.

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Liu Dong is a spy lurking in Bingzhou, codenamed Bamboo Rat, he is the first batch of spies to infiltrate Bingzhou, and his identity is a merchant who is doing the business of melons, fruits and vegetables.

Originally, Liu Dong was just a small leader, but after the unexpected capture of the military Sima of the state army last month, Liu Dong became the new military Sima and was responsible for the intelligence affairs of the entire state.

Although he was promoted, Liu Dong was not happy, and even a little nervous, after all, the current position of Sima of the Bingzhou Army is like a hot potato, who takes over who is down, his predecessor has actually just taken over the military Sima for less than three days, because he lost his hand in an espionage operation and was captured by the Bingzhou Army.

Fortunately, he hid poison, and at the same time as he was caught, he immediately committed suicide by taking poison, if he was captured alive by the Bingzhou army, then the Bingzhou spy network would inevitably suffer a heavy blow.

Although it is said that every spy adopts a one-line contact with each other, as the head of the state's spy system, he must know that things are more than a one-line method, and once he is caught, many people will suffer.

Liu Dong also knew how heavy the burden on his shoulders was after succeeding the military Sima, and the two successive military Sima "planted" were all related to the tasks assigned by the Luoyang side.

According to previous intelligence, the cavalry of Bingzhou has recently behaved unusually abnormally, and the garrison of these cavalrymen is not only far away from the city, but also hides in the most remote valley, where there is no one inhabited, and it is almost difficult for the spies of the Sima army to approach or infiltrate the barracks.

Moreover, the cavalry camp of the state army is extremely well guarded, the cavalry in the camp can only enter and exit, and around the camp, there are many sentry posts, and there are many checkpoints, and anyone is very close to there.

The abnormal behavior of the cavalry battalion of the Bingzhou army made Luoyang deeply uneasy, so they ordered the spies of the Bingzhou to spy on the secrets of the cavalry battalion of the Bingzhou at all costs, so the military Sima of the Bingzhou Army was planted one after another, and in order to complete the task, they were simply moths to the fire.

Liu Dong became the Sima of the Intermediate Army, which means that he will take on the important task of spying on the cavalry battalion of Bingzhou, but how to infiltrate the cavalry battalion, Liu Dong is at a loss and has no idea.

If this task was really so simple, then his two predecessors would not be so easy to hang, and now the surroundings of the cavalry battalion of the Bingzhou Army are simply impregnable, as long as he bumps into it, he will immediately hit his head and break the blood.

But if he doesn't do anything, it will be a dereliction of duty, and if Luoyang asks for the guilt, he will also be to blame.

Just when Liu Dong was in a dilemma, suddenly a customer came to his shop, and after the code cut, Liu Dong was finally relieved, it turned out that he was the "black wolf" sent by Luoyang, and he would take over the operation of the interstate military department.

Du Feng arrived in Bingzhou, under the orders of Sima Shi, due to the repeated failures of the Bingzhou spy system, Du Feng, as a military captain, had to take action in person.

Don't look at Du Feng's height, his appearance is not good, and his appearance is even a little obscene, that is, he is the one who is left in the pile of displaced people and can't be distinguished at all, so that when Liu Dong first saw him, he was inevitably a little disgusted, and he didn't bother to look at him at all.

But after Liu Dong heard his code name called Black Wolf, his expression suddenly turned grim, and his attitude immediately took a 180-degree turn, and he became respectful.

The black wolf is in their spy system, it is definitely a mythical existence, this is a master with unique skills, he has made many meritorious deeds, and has obtained a lot of top-secret information, no wonder he will be reused by Sima Shi.

Du Feng is very calm and low-key, even if his position is higher than Liu Dong's, even if his reputation is prominent, but Du Feng has no slightest, he is very patient to understand the current situation and difficulties faced by Bingzhou, no matter what kind of situation he faces, he is always not impatient, calm and calm.

Liu Dong couldn't help but secretly admire, the master is really a master, just this bearing makes them sigh to themselves, now that the task has been blocked, and the interstate military department has been repeatedly attacked, it has long been panicked and chaotic, and Du Feng's arrival, just like the Dinghai God Needle, quickly stabilized the overall situation.

Although there is no clue yet, Liu Dong also believes that under the leadership of Du Feng, they will definitely be able to complete the tasks assigned above and get the information they need.