When the zombie trebuchet troops were frantically attacking the walls of the Steel Castle, the zombie army on the ground had also quickly rushed to the edge of the Nenjiang River.

At this time, many of them had already burned so much that they were even scorched in many places.

But zombies are zombies, they don't feel pain, they don't have thoughts, and even if they have a raging fire burning on their bodies, they still move forward without feeling.

Unless the fire threatens its brain and heart, it will not be a big deal to burn off its hands and feet, at most it will walk with a limp. It's like an army from hell!

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At this time of the year, especially at night, there are already many places frozen on the Nenjiang River.

The zombies who came to the river saw that there was ice on the river, so they tried it a little, and thought it was okay, so they rushed directly without much thought, and continued to rush in the direction of the Iron Castle.

But the strange thing is that it was obviously early winter, and it was supposed to be frozen to the point that it was not solid, and the ice would crack if you stepped on it, but at this time, thousands of zombies stepped on it but nothing happened!

It turns out that the ice surface in these places has been strengthened by Chen Yuan and the other ice powerhouses earlier today!

However, Chen Yuan: They didn't do this to make it easier for zombies to reach the walls of the Iron Castle.

Instead, I want to pit zombies.

Because, if the ice surface here has not been reinforced, the moment the zombies rush up, the ice surface will shatter and cause the zombies to fall into the water.

But this is only on the shore, and the water is no deeper than knees, even if you can't drown the zombies, you can't let the zombies be washed away by the water, what's the point? Zombies don't catch a cold because the water is too cold!

On the contrary, it will make the Corpse King vigilant, go from somewhere else, or simply start filling the river and paving the way! This was what the corpse generals of Nenjiang County did when they attacked the Iron Fort the year before last.

So Chen Yuan and the others simply strengthened the ice surface here so that the zombies could rush up.

But they only strengthened the 50-metre distance from the shore to the deep water, and the rest of the world, although there was ice, was only a thin layer, and it was estimated that by the next day, the sun would melt as soon as it shone down.

In this way, the zombies will have to wait until they are near the deep water area before they step on the ice and suddenly fall into the water. And the river here is turbulent, which will directly wash away the zombies that have fallen into the water. Take some of the stress off the steel fort.

Sure enough, the zombie army was behind the ice, and the first period was unharmed. The Corpse King let his guard down.

But soon, a zombie stepped on the ice that had not been reinforced by Chen Yuan, and immediately fell into the surging river, and was instantly washed away without a trace.

At first, it was just one or two, and the Corpse King didn't pay much attention to it.

But more and more zombies fell into the water and were washed away, and the corpse king was suddenly shocked.

It hurriedly controlled the zombie army and stopped.

But it's too late.

Those zombies who had already rushed to the vicinity of the border, in a state of running at full speed, did not rush to stop their feet. Even if they knew that there was a surging river in front of them, they could only plunge into the river with their eyes closed. Let out a desperate "poof, poof" sound.

The zombies that followed them, although they hurriedly stopped, and desperately tried to retreat.

But the ice is so slippery, and it's not like they can stop if they want to.

Under the effect of inertia, these zombies continued to slip forward for a short while, but it was this small section that finally made them fall into the water helplessly. It's like dumplings.

There are even a lot of tragic zombies, who finally let themselves grab the ice and stop. But he was hit by a zombie that didn't brake the car behind him and fell down again. This Nima!

So in just a few moments, the two or three thousand zombies of the corpse king's army were gone.

The Corpse King was furious! Roar!

But that's not all!

Just as the Corpse King was about to control the zombie army to retreat, a dense artillery blast suddenly sounded from the direction of the Iron Keep.

"Bang ......"

A large number of mortar shells were fired.

On the other side, the part of the ice that connects to the shore was immediately bombed.

"Boom ......"

In the continuous explosion, a large area of ice on the Nenjiang River broke off from the shore, and a large number of zombies on the ice were washed downstream.

The corpse king was frightened, and hurriedly controlled the zombie to speed up and rush to the shore.

But in the end, less than a third of the zombies on the ice had time to jump into the shallow water and return to shore. The others were washed downstream with the ice floes.

Add up to at least 10,000!

This made the officers and soldiers on the city wall very happy, and they laughed when they saw the zombies falling into the water.

However, in the upstream direction, many zombies were washed away by the river and stuck on the piers leading to the Steel Castle Bridge.

Moreover, at this time, the corpse king was also unexpectedly surprised to find that the original burning aluminum powder could be doused with water.

So he immediately controlled a large number of burning zombies and rushed into the shallow water to extinguish the fire!

The Corpse King succeeded, and all the zombies on fire quickly extinguished the fire on their bodies after entering the water.

But in fact, it is not that the burning thermite can be doused with water, but that after burning for so long, that little bit of thermite has long been burned out. The fire on the zombies now is simply ordinary fire.

And the zombies that should have been burned have also been burned, so even if the fire is extinguished by the water now, the zombie left behind is only a disabled zombie, which is very fragile.

Therefore, the Corpse King will next control these tens of thousands of zombies with incomplete bodies to jump directly into the river, as paving stones, and fill the river and pave the way along the bridge that leads to the Steel Castle!

Anyway, if you just soak in the water, zombies won't actually die.

On the other side, the zombie army that rushed directly to the steel fortress bridge at the beginning had already rushed to a position only 200 meters away from the steel castle's gate.

On the walls of the Iron Castle, the officers and soldiers immediately opened fire.

Countless bullets rushed towards these zombies, forming a powerful fire network in front of the city wall, blocking the zombies' advance.

However, due to the distance and the darkness, although there are many bullets hitting zombies, there are only a limited number of accurate zombie hits.

So although the zombies on the bridge seemed to be large and falling, most of them quickly got back on their feet and continued to join the advancing team.

The entire zombie front is still continuing to advance tenaciously in the direction of the Iron Castle!

And as the distance shortened, the zombies soon began to attack with bows and arrows, javelins, and simple throwers like slingshots throwing Molotov cocktails at the walls of the Steel Castle to suppress the Fire of the Steel Castle and cover their own advance!

Even, at this time, on the main position of the zombies, nearly 800 cannon corpses were ready to attack!