"Boom~"

Several bursts of thunder exploded over Huangshan Mountain. Before the sound could be heard, the strong wind mixed with raindrops hit the ground, which vividly demonstrated the ruthlessness of nature.

Zuo Zhong was wearing a dark green military raincoat, holding a wooden stick in his right hand and holding on to the trees with his left hand, trudging through a forest southwest of the official residence.

"Let everyone stay away from high places and big trees as much as possible!"

Looking at the continuous lightning above his head, he stopped and turned around and shouted, telling his men to be careful about lightning protection to avoid unnecessary casualties.

Folks say that the snowman eats iron when thunder strikes, and there are piles of graves caused by thunder in winter. This means that the omen is not very good. It seems that next year's Republic of China will not be a good year.

While thinking about it, Zuo Zhong raised his hand to wipe the raindrops from his face, and scanned the surrounding ground with sharp eyes, trying to find traces of the bonfire.

Not only him, but in addition to the special agents protecting the residence, all other military commanders went up the mountain to join the search operation, striving to find more clues before the evidence disappears.

But as we hurried and hurried slowly, the heavy rain still fell, and the rain was extremely violent. The huge raindrops hit people's faces with a dull pain, and the visibility was no more than ten meters.

In the mountain city in November, the temperature remained around ten degrees Celsius, but dropped sharply to seven or eight degrees Celsius after it rained. The wet and cold agents were shivering with cold, but they gritted their teeth and insisted on continuing to search the mountains.

As the most elite intelligence force in the national government, enjoying treatment envied by other departments, it naturally has to bear corresponding responsibilities, and its responsibilities cannot be retreated.

There is a saying that you only see thieves eating meat, but you don’t see thieves being beaten. Although this saying is a bit inelegant, it aptly describes the situation of the Secret Service and even the military commanders.

Zuo Zhong opened his mouth and let out a cloud of white mist. Zuo Zhong tried his best to keep his eyes open, not to miss any suspicious place, and at the same time to prevent losing his footing and falling down the mountain.

"Report, found a second trace!"

Someone suddenly shouted loudly in the distance. The voice was a little blurry in the patter of rain, but Zuo Zhong, who was attentive, heard it and responded immediately.

He ran towards the other party following the sound. The yellow soil became extremely slippery after being soaked by the rain. He fell several times along the way and stumbled to the newly discovered scene.

"Where's the oilcloth? Cut a few bamboos and prop up the oilcloth to protect the scene. Then, with the scene as the center, search for suspicious traces within a radius of 100 meters. Move quickly!

In addition, other groups were notified to gather together and use the locations of the two discovered bonfires and the official residence as reference points to search for a third bonfire directly north of the official residence."

Gu Qi arrived first and immediately issued a few orders. This veteran intelligence officer, who was always quiet and impeccable, showed the coordinating and analytical capabilities of an intelligence director.

In this era, Air Force bombing guidance usually arranged light signals in a triangular pattern, as did the Japanese.

The guidance personnel can only provide a rough target range for the bombers and cannot provide precise guidance, so executing bombing missions is a matter of luck.

Now we know that the first bonfire is in the southeast of the official residence, the second is in the southwest, and the third bonfire can only be in the north, and the official residence is in the center of this triangle.

This analysis process sounds simple, but in a complex on-site environment, being able to think of it immediately and make a decision requires a certain amount of experience and courage.

When Zuo Zhong heard this arrangement, he was satisfied and added: "Lao Gu, let them search around the air defense force. Anyone who can poison the army (separation) must be an insider."

"Okay, deputy seat."

Gu Qi patted his head. The air defense force was also directly north of the official residence. This was definitely not a coincidence. Coupled with the poisoning incident, the Japanese spies were probably hiding in the air defense force.

After arranging the follow-up work, the two walked under the temporary canopy and squatted down together to observe the wet ground.

Just like the first scene, all that can be seen is a pile of charcoal and soil, and the area around the fire scene has been burned to the ground. The only difference is that a fire prevention ditch has been dug here.

"Lao Gu, what do you think?"

After watching for a while, Zuo Zhong turned around and asked his old partner, as if he wanted to test him.

"The person who set the fire was very professional. The environment here is different from the environment around the first bonfire. There are more plants. The reason for digging fire trenches is to worry about the spread of fire affecting the bombing accuracy.

Moreover, judging from the width and length of the dig marks, the Japanese spies must have used German-made engineer shovels. Since there are not many such shovels issued by the army, we can start the investigation from this aspect.

To sum up, the other person is likely to have a military background, have received professional civil engineering training, and is very strong. Look at this, this person's movements are very neat."

Without hesitation, Gu Qi pointed to the clear angular excavation marks on both sides of the fire ditch and expressed his thoughts.

The details are in the subtleties. The time window for the espionage operation last night was very short. In such an urgent situation, it is difficult to hide one's own behavioral characteristics.

"kindness."

Zuo Zhong replied softly without saying anything more. The enemy had a military background. This clue was of little use because the current mountain city lacked everything except soldiers.

When the war reaches this point, the Japanese will launch a final blow at any time. There are several corps of field (separation) combat troops responsible for defense around the mountain city.

In addition to the many remnants of the Guo army that were defeated and who either actively or passively followed the government to move westward, the number of new recruits and garrison troops recruited may be hundreds of thousands.

Finding a few Japanese spies among so many people is not something that can be done overnight. It has no practical significance for the investigation of the case. You can't investigate them one by one.

The same goes for German-made engineer shovels. The Guo army did distribute few of them, but lost many on the battlefield. Moreover, this thing is easy to imitate, and it is not difficult for the Japanese to obtain it.

"Report, found traces of the enemy cutting down trees."

Another little spy shouted outside.

Hearing this, Zuo Zhong couldn't help but wonder why no damage to the plants was found at the first scene. Could it be that the spies brought their own combustion aids?

Carrying a heavy bundle of firewood while climbing up a mountain. If someone sees you, you won't be able to run away. A spy wouldn't do such a stupid thing, or...

After thinking about it, he put the hat of his raincoat on his head, stood up and walked out of the awning. He braved the wind and rain and came to the little agent who was reporting. He raised his head and looked in the direction the other person was pointing.

In the heavy rain, a lonely tall pine tree stood in the woods and swayed in the wind. The upper part of the tree was intact, but the lower part was cut down.

Looking at the densely packed fir trees, yellow kudzu trees and large-leaf banyan trees in front of him, Zuo Zhong frowned and immediately realized that the spy who set the fire must have stepped on some of them.

I couldn't see my fingers last night. Unless the other party was not afraid of being exposed and used flashlight lighting, it would be impossible to accurately find the most suitable pine tree in a forest in the dark.

What was the purpose of the security forces near the official residence? There were no mobile sentries in such an important place. If this person had been caught earlier, what happened yesterday would not have happened.

Zuo Zhong complained silently. He walked closer to the pine tree and carefully observed the cross-section of the branches. They were similar to the traces of excavation of fire ditches. The stubble was very clean and not sloppy at all.

Even if the pine tree is a non-hardwood, not everyone can do it if they want to cut off the forearm-thick branches with one knife. Gu Qi's judgment on the spy just now was very accurate.

The opponent may have served in the military or received military training, is very strong, has greater upper body strength than ordinary people, and can skillfully use an engineer shovel and a firewood (partitioning) knife.

He reached out and patted the pine tree. Zuo Zhong looked at a few footprints under the tree that were not too deep. After thinking for a moment, he asked someone to bring him a rope ruler. After measuring, it was 2 meters from the ground to the highest stubble.

"Second Officer, the man who chops the trees is not tall. The hatchets used by the people around the mountain city are no longer than 20 centimeters including the handle. If they are longer, they will be difficult to carry."

Gu Qi, who was following, saw this and said, and then said and gestured: "Assuming that the knife used by the opponent does not exceed this length, that is to say, the spy can only stretch his arm upwards about 1.8 meters."

"Lao Gu, you are right."

After throwing the ruler to the little agent, Zuo Zhong picked up the stick and began to write and draw on the ground, speaking several numbers at the same time.

"Dr. Ling said that the average head-to-body ratio of Asians is about 6.75, and the height-to-arm ratio is 5:2. The Japanese are also within this range.

Looking at the overall footprint and the depth of the front and back, it can be determined that the spy did not jump or tiptoe when chopping down the tree, but just stood normally.

So excluding this uncertain factor and through simple calculations, we can get a range, the opponent's height is between 1.58 meters and 1.62 meters."

After writing a series of calculation formulas, Zuo Zhong stood up straight and wiped his hands with a handkerchief. He smiled proudly. He was glad that he did not return the junior high school mathematics to the teacher.

Gucci:???

Little spies:???

They were just stunned for a moment. How could the deputy know the spy's height? This was an important clue in the investigation. What exactly happened.

The cold icy rain patted his face randomly, and Gucci, a scumbag, was filled with despair. If he knew how to count, he would still be a shitty spy. Why not find an accountant in a foreign company?

The salary is high and there is no danger. I don't know how many times better than the job of wearing your head in your belt. Alas, the intelligence industry is getting harder and harder to get into.

"Huh? Why don't you talk?"

After waiting for a long time and not hearing any compliments from his subordinates, Zuo Zhong became unhappy and refused to compliment his superiors, which was not bad. He immediately raised his hands on his hips and asked a soul question in the rain.

"Ah? Yes, yes, Deputy, you are right."

"The humble position is considered the same as yours, so it must be true."

"Me too."

The agents all said that they understood what they were saying. As for whether this was true or not, you could tell by looking at their confused eyes.

This kind of look is often seen in the eyes of the secret service headquarters, oh no, it is the eyes of the members of the Central Military Commission. It is confused, incomprehensible, and in short, it is a question mark.

Zuo Zhong sighed, it seems that cultural knowledge will be added to the special training in the future, and Wen (Separation) cannot be a qualified intelligence officer blindly.

It happened that many professors from Jinling were saved last time, so the professors from the Central University invited them to come for tutoring, and the other party would probably give them face.

If Gu Qi knew what he was thinking, he would probably want to die. The arithmetic in university is so different from the Book of Heaven. A normal person would not be able to understand it, let alone talking about it.

At this time, a signal flare slowly rose due to the north of the official residence, and the third bonfire was found. Deputy Director Zuo, who was worried about his subordinates, shook the water drops on his raincoat and said a few words coldly.
Chapter completed!