After Zhang Fulai's apprentice went out to send a message, Tieyi inspected the two large coffins again, and each corner was carefully seen. I have to say that the coffin shop in Gaoyaocheng was doing a good job. The joints of the two coffins were waterproofed. After dragging them on the tunnel for so long, except for mud and water, there was no water seeping in at all.

Tie Yi, who was relieved, gently patted the coffin on the left, and suddenly thought of his master Zheng Laoquan. He thought that when he died, he didn't even have a coffin, and his nose couldn't help but become sore.

If God takes care of me this time, I will not let me die in this tunnel, and I will definitely go back and buy a good coffin to bury my master again!

Tieyi made a vow in his heart, and then took a deep breath. The air in the tunnel was thin, and the deeper it was, the more difficult it was to breathe.

After taking a deep breath of air, Tieyi felt that his head was much refreshed, so he carefully took out the kraft rope wrapped in kraft paper from his arms. Many wooden stakes less than one foot away were installed on the mud wall on the tunnel on the left side. He just needed to put the rope into the coffin, then put it on the wooden stakes one by one, and finally ignite the fire.

This process does not allow any carelessness. Once the fire rope falls down on the mud covered with water, it goes without saying that the fire will be more difficult, and the mud on the wall cannot fall on the rope. Otherwise, the rope will fall to the ground, which will also be a loss-making side.

The fuse rope used for ignition is made of hemp rope, about a hundred feet long and connected by more than a dozen fuse ropes. After making this fuse rope, it must be soaked in vinegar for a few days, and then taken out to dry, otherwise the stability and fuse conductivity will be poor. After soaking in vinegar, the fuse rope can burn on its own, but the disadvantage is that it burns faster and is not safe, so it will be caught when it encounters fire. When burying medicine in the mine, Tieyi saw with his own eyes that someone was blown to death on the mountain because he didn't have time to run over the lit fuse rope.

A hundred-foot-long freight rope means that Tieyi will escape to safety in a very short time, because there has never been a real city wall blast before. Therefore, even Zhou Shixiang cannot tell how powerful the two coffins will be after they explode and how long the tunnels will be affected. Therefore, he repeatedly reminded Tieyi that once the fire is ignited, he will turn around and run to the exit immediately, and do not stay there to try to see if the freight rope continues to burn.

People are afraid of death, and Tieyi is the same. He is also afraid of being buried alive in the ground, but someone must come to light the fire. As a family in the trap, Tieyi believes that the fuse must be ignited by himself. If he wants to die, he will die.

The time for placing the rope was almost static, and the deep and authentic black holes made people a little scared. The torch inserted on the wall at any distance could not shine enough places due to thin air. Tieyi did not dare to pull the rope with the torch, so he could only cheer up and even breathe in his breath to do this fatal thing.

Finally, the fuse was put on the wooden stakes on the wall without any danger, and nothing Tieyi was worried about.

Looking at the two coffins that could no longer be seen clearly in front of him, Tieyi swallowed. His nervous gaze moved towards the fuse hanging on the wooden stake. He slowly took a step back and pulled the torch from the wall. He prepared to light it with his own hands.

The fuse was rubbed by Tieyi and a few old men, and the coffin was also built by himself, and he personally directed the person to drag it into the tunnel. Now, he will take the fire with his own hands, and he will blow out the Xinhui city wall in any case!

fry!

Blow you guys to death!

After shooting a last glance towards the end of the tunnel, Tieyi stretched the torch towards the fuse without hesitation.

With a "chi!", Mars flashed, and a faint blue smoke rose. The fuse burned forward at an extremely fast speed.

Thinking of Zhou Shixiang's advice, Tieyi didn't dare to watch the burning of the fuse. He turned around and ran as fast as possible, and his legs stepped on one heavy footprint after another in the muddy tunnel.

I don’t know how many torches I’ve touched on the wall along the way, I don’t know how many times I hit my head, and I don’t know how far I suddenly ran. Anyway, Tieyi was just running, running all the time!

Damn it, why haven't it exploded yet?

His feet were still running forward, but there was no explosion in his ears. Tieyi's heart couldn't help but pull. Just as he was thinking, he suddenly heard a muffled sound from behind, and then the ground under his feet trembled violently, and a wave of heat came from behind, throwing him to the ground.

Accompanied by the heat wave were countless soil and broken particles, the tunnel felt like the earth was shaking. Tieyi was lying on the mud, his head was covered with thick mud, and the strong air flow just now made him unable to breathe for a moment. When he wanted to inhale, the air was filled with the smell of choking gunpowder, which made him cry and snot come out.

Blasted!

Tieyi's first thought was that he finally exploded, but the second thought was that I was so angry that I was about to die here?

......

The clay camp was filled with most of the property, and more than 700 kilograms of granular gunpowder finally exploded in the sealed coffin. The soil under the Xinhui city wall was first lifted up, followed by loud noises and black smoke.

On the ground, everyone heard the loud noise and felt the violent shaking from the ground.

The sky is thundering?!

When the Qing army on the city wall heard the loud noise, the first reaction was not to look down at the city, but subconsciously looked up to the sky. When they found something wrong, the city wall was covered with black smoke, and soldiers were even screaming.

The smoke blocked people's sight. No one in the Qing army knew what had happened. They only knew that their feet were shaking violently, and countless bricks were flying up on the wall of the east gate.

"What happened? Where did the thief get the cannon!"

Zheng Guodong, who woke up from his sleep, even his shoes were not even worn after hearing the loud noise, rushed out barefootly. When he saw that the area around the East Gate was covered by black smoke, he was so shocked that he opened his mouth wide, not knowing what was going on there.

On the wall of the east gate, the Qing army vigilant could describe them as ghosts crying and wolf howling. Many unlucky people were smashed by flying rocks at the moment of explosion, and more of them fell down as the sudden collapse of the city wall was immediately buried by the soil, stones, and bricks that fell again.

"The city wall collapses, the city wall collapses!"
Chapter completed!