Li Zhang's manor is very large, and no one will find out if he buries someone casually, and even if he does, it's nothing, anyway, they are for self-defense, but it will be more troublesome if the government knows about it, so they simply dig a pit and bury it.

Early the next morning, Li Zhang and the wild dog rode out of the manor, but they did not go directly into the city, but came to the Bianhe River and stopped, and then Li Zhang pointed to the Bianhe River: "Wild dog, the capital is high in the northwest and low in the southeast, so the Bianhe River flows from the northwest to the southeast, and during the heavy rain every summer, the southeast corner of the capital is also the most likely to be flooded, you know all this, right?" ”

Hearing this, the wild dog nodded, although he didn't understand why Li Zhang said this to him, but he still listened very seriously, in fact, the wild dog is a very smart person, but it also depends on who he compares, if he compares with Li Zhang, he has always felt that he is too stupid, so as long as he encounters a big thing, Li Zhang will make the decision.

"Now that we know the topography of the capital, then we can also know that if the capital is flooded, the sewers in the southeast region will also be filled with water, unless it is a water ghost, there is no way to survive in it, and then the ghost beggars will definitely concentrate in the sewers in the northwest region." Li Zhang spoke again at this time.

The wild dog's eyes finally lit up when he heard this, the reason why the ghost beggars are difficult to remove is mainly that the underground bottomless pit extends in all directions, unless a large army is sent down to intercept it, it is impossible to eliminate it at all, but if it can take advantage of the flood, it can force the underground ghost beggars to a corner, which is much easier than before.

"But even if you force the ghost beggars to the northwest region, this area is still not small, so I need you to figure out all the underground passages in the northwest region during this time, and draw drawings, as for the method of drawing drawings, I will teach you, with this drawing, I can ask the imperial court to send troops down to clear it, and then it will be much stronger than you alone." Li Zhang continued at this time, such a big thing as clearing out ghosts and beggars must rely on the power of the imperial court, otherwise it is impossible to complete it.

The wild dog was not stupid, and when he heard Li Zhang's words, he nodded heavily and said, "Okay, you teach me, and I will draw the drawings of the underground passage as soon as possible!" ”

Seeing that the wild dog agreed, Li Zhang was also relieved, and then he took the wild dog along the Bianhe River into the capital, and explained the terrain under his feet to the wild dog while walking, Li Zhang has been observing the terrain of the capital in recent years, as well as the places that are prone to flooding when the rainy season arrives every year, and these are used to deal with ghost beggars.

In fact, the method of flooding was the first to come up with by Lu Wu, but Lu Wu's idea was too simple and crude, he just wanted God to send a big flood and drown all the ghost beggars, but this obviously didn't work, but it also gave Li Zhang an inspiration, so he wanted to force the ghost beggars to a fixed area by sending a big flood, so that they could be wiped out in one fell swoop.

Of course, Li Zhang's method also has loopholes, that is, it must be used in the sky, if it does not rain, or if it rains too little, it will not achieve the effect he wants, but according to Li Zhang's observation in recent years, Kaifeng City at this time is far hotter and rainier than later generations, especially in summer, heavy rainstorms for several days are also common, and the situation of the capital being flooded is every year, which is also the main reason why the magnates in the capital like to live in the northwest region, after all, the terrain here is high, and they can't flood their homes when they encounter heavy floods.

After returning home, Li Zhang immediately taught the wild dog how to draw a map, in fact, he didn't know before, but there is information in the computer, so he taught himself again, and there is another good thing, that is, a sports watch, which can measure the altitude of the location, this is not with GPS positioning, but with air pressure to measure, when Li Zhang found out, he took down the electronics inside, so there is still electricity in it, but I don't know how long it can be used?

With this watch that can measure altitude, the wild dog can know the height of his location, although it may not be too accurate, but it can also be recorded on the drawing for reference, and Li Zhang also took out a map of the capital, let the wild dog write down the key areas that need to be explored, in addition to Li Zhang also prepared several weapons, such as grenades, which he made himself, the power is not smaller than that made by the firearms supervisor, and it is extremely powerful in a narrow pit, of course, he also repeatedly told the wild dog to be careful when using it, don't hurt yourself.

After a period of preparation, the wild dog was finally fully prepared, and then left the house on a dark and windy night, but just as the wild dog was leaving, Li Zhang suddenly stopped him, and then took off his self-defense pistol from his leg and handed it to the wild dog and said: "You know how to use this pistol, take it with you for self-defense, but you have to return it to me when it runs out." ”

The wild dog also showed a tangled look when he saw this pistol, he knew that this was Li Zhang's biggest weapon for self-defense, and he even had to put it under his pillow when he was sleeping, and now Li Zhang handed it over to himself, so to speak, he gave his own safety to him.

"No, I have planes and hidden arrows, which are no less powerful than pistols, and the pistols are too loud, which may attract strong enemies." The wild dog hesitated, but finally shook his head and refused.

Li Zhang also felt that it made sense when he heard this, so he didn't insist anymore, and immediately stepped forward and patted the wild dog's shoulder and said: "Drawing is secondary, the most important thing is your safety, even if it doesn't work in one year, we still have the next year, but if you die below, I'm afraid we won't be able to find your body if we want to, so everything must be our own safety!" ”

"I understand!" The wild dog nodded heavily, and then turned around and left here, Li Zhang also watched his figure jump over the wall and disappear into the vast night, which made him sigh, the wild dog's life experience is so pitiful, it is really unparalleled, and his greatest wish is to kill all the ghost beggars, as his eldest brother, he must also help him fulfill this wish!

That night, Li Zhang was also worried that he didn't sleep all night, but in the early morning of the next day, the wild dog came back safely, which made him also relieved, but he found that the wild dog had an extra bloody gas, obviously killing again, but Li Zhang didn't care, anyway, the dead were underground ghost beggars, and the court stipulated that those who killed ghost beggars were not only not guilty, but could receive a reward, but Li Zhang and wild dogs didn't care about that reward.

In the following period of time, the wild dog went out late and returned early every day, and the drawings of the underground pit were slowly completed in his hands, and the wild dog not only drew the drawings of the northwest region, but even the drawings of other areas were also drawn, but during this period, some changes slowly appeared in the wild dog.