Since Lin Fei did not have a blower, people working at the far end of the tunnel would feel depressed, and the old craftsman Qin Xiren dug a wind hole near the tunnel to solve this problem, which was excavated with a fine-bladed shovel, so the hole was extremely small and could not be seen from the outside world at all.

The ground near the city walls was covered with soft earth, so the excavation of the engineer company proceeded smoothly, and by 12 noon on 9 February, the engineer company had dug the deep pit for the explosives and began to fill them.

The process of loading explosives did not cause much noise, so Lin Fei did not order his subordinates to continue the feint, but ordered his subordinates to rest and recuperate, so the troops stopped digging trenches.

The Spanish army on the opposite side was already exhausted at this time, and saw that the army of the Chinese Empire had stopped digging trenches, and also stopped the work of digging ring moats.

At 9 o'clock in the evening of February 9th, Qin Xiren led the people to have already filled 120 kilograms of explosives, and in a few hours, all 150 kilograms of explosives would be filled, and then a single detonation would collapse the city wall by at least 30 meters!

At 9:30 p.m. on February 9, Lin Fei ordered: "Call me Qi Lei, the commander of the first company." ”

After a short time, Qi Lei walked into Lin Fei's command post, raised his hand and saluted, and said loudly: "Qi Lei, the commander of the first company, was ordered to come to report. ”

Lin Fei called Li Tianqian on the side and said to Qi Lei: "Follow Li Tianqian's staff officer and take the troops to the woods in the south of the city." ”

Qi Lei replied loudly: "Yes! ”

Lin Fei said: "Repeat the order! ”

Qi Lei said: "Follow Staff Officer Li Tianqian and take the troops to the woods in the south of the city. ”

Lin Fei nodded and said, "At about 10 o'clock tonight, the city wall in the south of Cotabato will collapse, you have to rush to the wall at the moment the city wall collapses, march to the east of the city at the head of the city, and open the east gate, understand?" ”

Qi Lei was stunned for a moment and asked, "Your Majesty, you said that the walls of Cotabato will collapse?" What's going on? "Lin Fei's order to the engineer company to dig tunnels is top secret, and only a few people in his troops know about it, so Qi Lei has no idea about this matter.

Lin Fei said with a smile: "I have arranged for the engineer company to dig tunnels in the south of the city and plant explosives under the city, this matter is top secret, so you don't know." ”

Qi Lei suddenly realized, nodded, and Lin Fei continued: "After you attacked the city, you immediately waved your troops to the east of the city, and then opened the city gate on the east side and let our large army enter the city, understand?" ”

Qi Lei replied loudly: "Understood! ”

Lin Fei waved his hand and said, "Okay, go and prepare, I don't want to talk about the importance of this battle, I just want to tell you, the national fortune of the Huaxia Empire is on your shoulders!" ”

Qi Lei's eyes were shocked, he puffed up his chest, and said loudly: "I will definitely live up to my mission and complete the task!" ”

Lin Fei patted him on the shoulder with a smile, turned back to Li Tianqian and said, "Lao Li, take a company commander with you." ”

Li Tianqian and Qi Lei left with their troops, and Lin Fei immediately ordered all the troops to prepare for battle, and the decisive battle was about to break out.

At 9 o'clock in the evening, there was a sudden thunderstorm in the sky, Lin Fei walked out of the command post, looked up, and saw dark clouds in the sky, it seemed that a heavy rain was coming in an instant, Lin Fei's heart trembled, thinking that February is the dry season in the Philippines, and there is very little rainfall, how can it rain tonight?

Rain will not affect the detonation of explosives, because trinitrotoluene explosives are not afraid of water, and can even be detonated in water, and the fuse used by the engineer company is not an ordinary hemp rope, but is made of nitroglycerin explosives wrapped in waterproof paper, and the biggest advantage of this fuse is that it is not afraid of water.

However, the rain will affect the tunnel, the water will flow into the tunnel, causing great changes to the mechanical structure of the tunnel, the tunnel is likely to collapse, and more importantly, the bottom stage of the tunnel, once the river water increases, it is very likely to crush the tunnel at the bottom of the river.

Lin Fei secretly thought in his heart that he must immediately detonate the explosives at this time, once the river water crushes the tunnel, the consequences will be unimaginable, Lin Fei called Zhang Chuang and ordered: "Rush to the tunnel excavation site as quickly as possible, notify Qin Xiren, and immediately detonate the explosives!" ”

Zhang Chuang rode on a fast horse, galloped to the excavation site of the tunnel, and found Li Tianqian at the place, and said anxiously: "Your Majesty has an order, immediately detonate the explosives!" ”

Li Tianqian was stunned for a moment and said: "There are still thirty kilograms of explosives that have not been transported in, why do they have to detonate now?" ”

Zhang Chuang said: "Isn't it going to rain? Worried that the rain would destroy the tunnel, he gave the order to detonate immediately. ”

Li Tianqian agreed repeatedly, ran to the entrance of the tunnel, and said to Qin Xiren: "Old Mr. Qin, Your Majesty has an order, immediately set off explosives!" ”

Qin Xiren let out a sigh of relief and said, "I see that the sky is not right, and I am worried, it would be great if His Majesty had an order!" After Qin Xiren finished speaking, he rushed to a trumpet-shaped thing on the side and said: "All attention, immediately stop the transportation of explosives, set up a fuse, and detonate explosives!" ”

The horn-shaped thing is very similar to the microphone on a warship, which is a "small invention" that the miners of the engineering company came up with when they were mining, and used several iron pipes to lower the mouth of the tunnel, and the people on the ground shouted at the iron pipes, and the people below could hear it.

After Qin Xiren finished shouting, the three strong men with the upper body carried the three groups of fuses on their backs, bowed into the tunnel, and left a section of the fuse outside, the tunnel dug by Qi Xiren was not big, and people could only walk with their bodies bowed inside, but the width was enough to allow three or four people to move forward side by side.

At the same time that the strong man climbed in, the people transporting explosives inside kept coming out, and in about half an hour, the three strong men also climbed out and said to Qin Xiren: "The fuse and detonator are ready." ”

Qin Xiren nodded and said, "Fireworker, ignite the fire!" ”

A lean man pulled out three fire pipes, which had been used on the island of Ibayat, and had detonated explosives to kill many Spaniards. The lean man put the fuse into the fuse and pulled the fuse, only to hear the sound of "呑呑" coming from the fuse, and a flash of fire disappeared along the fuse at the entrance of the hole.

When the pyrotechnic lit the fuse, Qin Xiren took out a polished pocket watch from his pocket and stared at the surface, he was determining whether the fuse had detonated the explosives according to the time, after all, the length of the tunnel was more than two hundred meters, and some accidents might occur in the middle, if this fuse failed to detonate the explosives, the next fuse must be ignited.

The fuse fuse speed designed by Lin Fei is about 20 meters per second, and it takes about 10 seconds for the flame to travel over a distance of 200 meters.

Everyone's hearts hung in the air, Qin Xiren looked at the lean man and said, "Order another one." ”

The lean man picked up a brand-new firepipe and lit the second fuse, the fuse made a "bang" sound, and entered the tunnel, everyone was silent, everyone's heart was in their throats, if this fuse didn't explode again, only the last fuse would be left.

Everyone was so quiet that they could hear the second hand moving, 1 second, 2 seconds, 3 seconds, everyone felt for the first time that a second was so long, 4 seconds, 5 seconds, 6 seconds, everyone's hearts were beating with the second hand, 7 seconds, 8 seconds, 9 seconds, everyone seemed to lose consciousness, all their spirits were concentrated under the city wall, silently praying for the explosion.

The flame of the fuse in the tunnel ignored the expectations of everyone, it ran in the fuse by itself, and suddenly it felt that the things around it were different, and a gray thing appeared in front of it, and it realized that it had entered the detonator, and the gray thing in front of it was mercury thunderate, and the flame rushed over, hugging the mercury thunderate, and mercury thunderate also used its own explosion to meet the flames!

"Bang", the explosion of mercury thunderate, the shock wave then rushed into the trinitrotoluene explosive behind him, and more than 100 kilograms of explosives exploded under the impetus of the shock wave!

The shock wave of explosives rushed into the foundation of the reinforced concrete wall like a tsunami, and under the overpressure of several gigapascals, the entire section of the wall was uprooted!

There was a loud "boom", the firelight illuminated the night, shaking the earth, the people in the distance let out a high-pitched cheer, the smoke dispersed, and I saw that there was an opening more than 20 meters long on the original city wall, and the stones were piled up on both sides of the mouth to form a slope.

Qi Lei waved his hand, lowered his voice and said, "Don't speak, charge quietly!" ”

The soldiers of the first company rushed to the gap like a group of ghosts in the dark night, Lin Fei once taught them that when they launched a charge, no one was allowed to speak, let alone shout slogans, the purpose was to make the enemy confused about the battlefield situation and not know where to shoot.

The soldiers of the first company quietly rushed to the gap, and the Spanish troops in the city had not yet reacted, especially Servette and Racello, their first reaction when they heard the explosion was that the ammunition depot in the city had been blown up, but the ammunition depot was located in the east of the city, how could the explosion come from the south of the city?

The Spanish sentries near the blast site had already been killed, and it would take ten minutes for the mobile patrol to arrive, so Qi Lei led the soldiers of the first company to climb the city wall from the gravel slope without being hindered in the slightest.

After Qi Lei went up the city wall, he rushed to the east of the city, and soon encountered the patrol on the city wall, and the Spanish patrol did not know Qi Lei's identity, thinking that they were the guards near the explosion point, and asked in a loud voice in Spanish: "Where did the explosion happen?" ”

Qi Lei took off his rifle and fired, the bullets whistled towards the patrol, and the patrol instantly turned into a dead body, at this moment, the sky suddenly sounded a "click" thunder, and the raindrops of beans fell.

This book was first published from 17K Novel Network, the first time to see the genuine content! I734