The 'Mantis' special operations team stormed the compound and eliminated the six little devils in just a few minutes.

In order to prevent the little devils who were in charge of patrolling the perimeter of the compound from rushing into the courtyard, Lei Yunfeng ordered Fang Shichao: "Ah Chao, cleverly set up special high-explosive bombs on the gate, once the little devils rush in, let them come and go." ”

After giving the order, he quickly conducted a thorough search of the yard, and when he found nothing suspicious, he quickly rushed to the gate of a factory.

The gate of the factory building is a thick iron door, and Lei Yunfeng and the others who rushed to the front were blocked outside the gate, Su Xiaoyan first found the opening button that was very cleverly set, and reported in a low voice: "Cloud shopkeeper, this should be the button that starts the door." ”

Lei Yunfeng ordered the brothers around him to prepare for battle, and he pressed his right index finger on the button, pressed it gently, only to hear a very slight sliding sound of the door, and the seemingly cumbersome iron gate was slowly opened.

Without waiting for the gates to be opened, Lei Yunfeng took Fang Shichao and Su Xiaoyan to dodge in, and ordered Wang Liang, who was following behind, to tie the gate from the inside.

This is not a particularly large workshop, but the materials stored in the factory are well organized, and there is no clutter, and walking into this workshop gives people an uncomfortable feeling of pungent gas.

There are no light and dark guards and devil patrols in the whole factory, and it is as quiet as a warehouse for storing supplies.

Fang Shichao and Su Xiaoyan quickly searched the warehouse and reported; No one was found in the warehouse, and most of the materials were marked in Japanese, with a few tin boxes and small, delicate barrels in German and English.

Lei Yunfeng and the four brothers around him are all specially trained officers in Germany, and they are no strangers to German, nor are they laymen in English.

The three of them quickly counted and inspected the materials stored in the factory and found that most of them were very toxic chemicals.

"Cloud shopkeeper, are these stored materials the raw materials for the Japanese army's research and development of bacteriological weapons? Otherwise, how could it be in this base warehouse? Su Xiaoyan frowned and looked at Lei Yunfeng and asked.

"Yes, shopkeeper Yun, I think what Ah Yan said makes sense, otherwise it wouldn't be all chemicals, and the smell is very pungent, and the outer packaging is marked with toxic logos, what do you say?" Fang Shichao also saw that these stacked materials were not ordinary.

Through the inspection of the stored materials, Lei Yunfeng has determined that all the materials stored in this factory should be an important warehouse for the Japanese army to develop bacteriological weapons, but where is their research room located?

"Your analysis is correct, since we have found the warehouse where the Japanese chemical research institute stores toxic substances, their research room should be here, but we have not found the entrance and exit, which is a big trouble."

Fang Shichao and Su Xiaoyan also discovered this problem, and the two looked at Lei Yunfeng and asked almost at the same time, "Shopkeeper Yun, what should we do?" ”

"Now that we have found this warehouse where the chemical substances are stored, I believe that the secret room of the Japanese army to develop bacteriological weapons is near here, and it is very likely that they entered their research room through this warehouse."

"Cloud shopkeeper, I don't think it's very likely, no research institution will use the storage warehouse of toxic substances as a frequent passage, which is not only dangerous but also causes poisoning." Su Xiaoyan said cautiously.

"In order to prevent the secret research room from being exposed, the technicians and experts of the Japanese army's chemical weapons development agency are likely to use ordinary people's thinking to make the impossible possible, and to search separately in order to find the import and export as soon as possible."

After Lei Yunfeng gave the order, he immediately launched a careful inspection of this factory, and he did not dare to let go of even the slightest suspiciousness.

Carefully Su Xiaoyan is in the instinct of a woman, and she has her own uniqueness for this kind of aimless search, and soon she found an extremely secret place, found something unusual under her feet, and squatted down to take a closer look.

Fang Shichao searched from the side and saw Su Xiaoyan squatting on the ground, not only walked up to him and asked in a low voice, "Ah Yan, did you find something?" ”

"Ah Chao, do you think this steel plate under my right foot is very special?"

"Yes, I think this iron plate is really curious, why is there an iron plate on the ground? Could it be that this iron plate has some secret use? Fang Shichao not only looked at the iron plate under Su Xiaoyan's feet and squatted down.

At this time, Lei Yunfeng also searched over, and saw that Su Xiaoyan and Fang Shichao were both squatting on the ground, looking down at their feet, not only did they quickly come over and ask, "Did you find anything?" ”

The two of them told Lei Yunfeng about their doubts at the same time, and Lei Yunfeng and Wang Liang also squatted down with great interest to study the wonders of this steel plate.

After a short period of rapid research by the four of them, it was found that this iron plate seemed to be mixed with the ground, and there was no sign of movement, let alone the entry and exit mechanism that entered the secret room for the Japanese army's research and development of bacteriological weapons.

Lei Yunfeng decisively ordered: "Don't put the time here, immediately search carefully again, and be sure to find the entrance and exit mechanism to enter the Japanese research room in a short time, I don't believe that they will stealthily drill in." ”

He sent Fang Shichao, Wang Liang and Su Xiaoyan away, and squatted down to carefully inspect the iron plate that appeared strangely on the ground again.

After careful inspection, it was found that there was a very inconspicuous square crack at the root of the wall near this iron plate, which was shaped like an iron box embedded in the wall, and the surface was integrated with the wall.

Lei Yunfeng frowned and looked at this square iron block of four by four cm, and found that the middle part of the surface of the square iron block was shiny, which showed that this piece of iron had often been touched by people, and it had been moved many times, otherwise it would be impossible to polish the surface of the square iron block.

Discovering this secret, Lei Yunfeng was so excited that he couldn't wait to touch this square piece of iron immediately and see what the secret thing was.

To be on the safe side, Lei Yunfeng called Fang Shichao, Wang Liang and Su Xiaoyan to him: "You see what is the use of this square piece of iron placed here?" ”

Fang Shichao and Su Xiaoyan looked at it a few times, and finally Fang Shichao said: "This square piece of iron should have been touched often, otherwise it won't shine in the middle, and according to the location of the place, it should be touched with feet, not hands." ”

"What is the purpose of the iron plate embedded in the ground, not far from this square piece of iron? There must be a connection between them, otherwise there would not be an iron plate on the ground. Su Xiaoyan didn't know why, and cautiously asked this question.

Lei Yunfeng knew very well in his heart that time was very important to them, if he delayed here for too long, as a candidate and the New Fourth Army commando team on the periphery of Yuanping Mountain, engaged in a fierce battle with the enemy to the death, and covered them to complete the task of destroying the Japanese army's bacteriological weapons base, they would soon lose a great opportunity because the battle was over.

As a result, a large number of Japanese troops who were rushed over to reinforce them surrounded them in the depths of the secret base of Yuanpingsan, and by that time not only could they not complete their mission, but it was very likely that they would die here, and in the end, no one would know why they disappeared.

In order to complete the task as soon as possible, Lei Yunfeng raised his foot violently and kicked at the square piece of iron that was very close to the ground, only to listen to the .......

(End of chapter)