Qintong Mountain, stretching for thousands of weights, pulling up ten thousand thousands, in addition to a little alpine basin and Pingba grassland in the core of Tongzhong, Tongnan and Tongbei, there are more reckless barren mountains and jagged heavy mountains.

Among the mountains that stretch for thousands of miles, there is no shortage of Lingtian Cave Mansion with strange scenery and surging spiritual springs, and of course, there are more poor mountains and bad waters covered under the snowy glaciers that are difficult for birds to cross.

Shenhuling is the depths of the western foot of Qintong Mountain, an extremely inconspicuous difficulty, the ridge ridge ridge that is more than 1,000 zhang high, stretches for more than 200 miles, like a sharp sword blade lying horizontally, blocking the road from Hengshan City to Liquan.

The Tonghe River has made a big bend in the Shenhuling Ridge, and the waterway has been delayed for more than 200 miles, but the vast majority of people did not expect that at the foot of the Xigu River Beach and the foot of the Donggu River Beach in the Shenhuling Mountain, Long Xiangjun has opened an iron ore cave in the past two years to mine iron ore respectively, and these two mines can be directly opened at the last moment, so that the distance between the two points is shortened to only one-tenth of the previous one.

In the mine village on the river beach in the east valley of Shenhuling, the lights are bright, Le Yi, who was the first to drill out of the tunnel, looked up at the night sky with a bright moon and stars, and the war bird battalion had already rushed to the river beach mine to guard one step in advance, in case the enemy army might raid and attack the vanguard of the eastward marching soldiers and horses.

Heavy crossbows are mounted on top of the heavy sky machine chariots at high elevation angles, waiting for enemy warbirds to suddenly launch a dive attack from nowhere.

News came from Juquanling that before nightfall, hundreds of war birds of the Nine Feudal Alliances left Liquan City and entered the mountains at the western foot from the north of Juquan Lake.

The Shenhuoling Tunnel is more than 20 miles deep, and it is the deepest tunnel group at the western foot of Qintong Mountain.

Soon, Le Yi's deputy Han Jian also came out of the mine, exhaled a long breath of turbidity, patted his thigh and sighed: "If I were the son of the Dong family, I would never have imagined that in the past few years, the lord would have taken advantage of the opportunity to mine copper and iron ore to secretly dig through the natural dangers that are difficult for birds to cross, such as Shenhuling Ridge and Heishi Peak......"

At this time, the Longxiang Army, which was ordered to advance eastward for reinforcements, was the Fourth Town Division, which was led by Le Yi as the main general and Han Jian as the deputy general, and had not been publicly seen in Yanzhou for a long time.

Excavating tunnels deep in the western foothills of Qintong Mountain has always been a top-secret plan.

Don't say that Han Jian and other generals and consuls who led the troops outside didn't know the details, even the directors of the mine village in the deep mountains at the western foot didn't know that the mines they were responsible for digging were all accurately surveyed and positioned, and they could be opened at the last moment.

Le Yi glanced back at the entrance of the cave where the pioneer general was rushing out, and thought to himself, with conventional means, if you want to dig a few zhang square and twenty miles deep in the depths of the hard rock house, how can it take tens of thousands of people more than ten years to succeed, but who would have imagined that the Long Xiang army would only consume hundreds of curly blade locomotives in this mine tunnel.

This is mainly due to the immaturity and excessive consumption of the curly blade mining vehicles made in the early stage.

However, measured by traditional resources, in order to excavate the tunnel car at the western foot of Qintong Mountain, the Long Xiang army consumed a total of six or seven million catties before and after, and the intermediate quenched iron secretly imported from Lucheng is also a jaw-dropping figure.

Without waiting for all the forwards and generals to come out of the pass, Le Yi and Han Jian rushed to the next gathering point surrounded by more than 100 guards.

This is a long and narrow rift valley with a depth of more than a kilometer and a width of more than 200 meters, called the Iron Wire Valley.

If you don't build a bridge, if you want to bypass the Iron Wire Valley, you have to walk two or three hundred miles of rugged and dangerous roads in the deep mountains and old forests.

The plank roads built on both sides were also interrupted because of the Iron Wire Valley, but this interruption was deliberate, and it was deliberately made the enemy scouts mistakenly think that the plank roads built by the Long Xiang army in the depths of Qintong Mountain were all centered on their respective mines, and they were intermittent, and they would never have thought that what Chen Hai had planned in the past few years was to open up a second artery running through Qintong Mountain outside of Qintong Pass.

At this moment, more than a dozen winches embedded deep in the stone walls on both sides of the Iron Mountain Cliff are firmly locking more than a dozen fine iron chains thicker than an adult's arm and each weighing tens of thousands of catties, hanging above the cliff.

The baggage soldiers on both sides are laying the square wood that has been prepared long ago on the iron chain, which can build the iron chain bridge before the arrival of the vanguard troops, so that the middle section of the Qintong Mountain Road for thousands of miles will be completely penetrated.

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No one believed that Long Xiang's army could quietly open through Qintong Mountain, and Miao Zijin and others all believed that Chen Hai was bluffing and wanted to force the Nine Domains to withdraw their troops from Liquan by deception.

Dong Chou himself also had a trace of illusion, and waited restlessly in Liquan City for two days, but after learning that the vanguard of the Longxiang army to reinforce the soldiers and horses took only three days, he quickly advanced to the Shenhuling Ridge and the Iron Wire Valley, and he could no longer sit still in Liquan City.

It didn't even take three days for the first batch of soldiers and horses to be able to reinforce Juquanling, and by that time, the coalition army of the Nine Domains had not even made preparations to storm Juquanling in Liquan City.

Dong Chou didn't care whether Ge Xuanqiao wanted to be willing or not, and asked him to accompany him to sneak into the depths of the western foot of Qintong Mountain, and join the war bird battalion that had infiltrated first, planning to find an opportunity to forcibly cut off the passage of the Long Xiang army to the east for reinforcements from the air.

They traveled all the way, and they arrived in front of the Iron Chain Valley at noon, seeing the Iron Chain Bridge coming out of nowhere, and seeing Le Yi and Han Jian personally leading the troops to cross the Iron Chain Bridge from a distance, Dong Chou was so angry that he wanted to look up to the sky and roar, but the guards on the side of the Iron Line Valley were too tight.

In addition to the tens of thousands of elite forwards who were crossing the bridge, in addition to more than 100 fierce war birds and more than a dozen heavy chariots guarding the Iron Line Bridge, Chen Hai also sent out the Juquanling Grass Guard Battalion to guard these key passes in the depths of Qintong Mountain.

At this moment, Dong Chou profoundly realized that over the years, the Tianji Academy Palace had quietly absorbed too many children of the Han Sect, and once these children of the Han Sect were organized in the name of the new emperor, the power of cohesion was so strong that it was terrifying.

In addition to the thousands of grassroots military attachés needed by the Guining Army, the scale of the Imperial Concubine Palace's Imperial Sword Guard Battalion was as high as 1,000 people, recruiting sword cultivators from the Hanmen of the Heavenly Machine Academy.

You must know that the most elite Taoist soldiers in Hexi, and the generals above the spiritual realm, are only more than 1,000 people.

Although the Imperial Sword Guards stationed in the Iron Wire Valley are only a hundred people, these sword cultivators are shamelessly hiding behind a shield wall composed of two or three inches thick and quenched gold heavy shields, plus more than a dozen light and heavy celestial chariots deployed on the periphery, and the warbird battalion with low defensive power, if they want to swoop down from the air, tear apart the defense line composed of the Imperial Sword Guards and the celestial chariots, and cut off the iron chain bridge, how much price do they have to pay?

What's more, the iron chain bridge is cut off, and it will be connected soon—Dong Chou believes that the Long Xiang army should reserve a large number of iron chains here—at most, it can delay the reinforcements of the Long Xiang army for a day or two.

Dong Chou could only have a gloomy face, and ordered with the royal bird guards behind him:

"Everyone go east along the plank road to find all the holes in the tunnels, look for fighters, and blow up the holes......"

Dong Chou didn't believe that Chen Hai could keep all the key points along the line tightly, and the murderous voice echoed in the valley, causing hundreds of birds to scatter in the air like frightened birds and fly eastward.

There are four long tunnels to the east from the Iron Wire Valley, and there are plank roads on both sides of the tunnels, so it is impossible to hide from those who have a heart at this time.

The war poultry battalion led by Dong Chou, as the most elite combat force in Hexi, even gives priority to equipping dozens of heavily armored crossbows newly imitated in Hexi, and the attack power will definitely not be weak, and once the iron heart wants to destroy the tunnel potholes in the depths of Qintong Mountain, without the cooperation of a large number of soldiers and horses, it is extremely difficult for the sword guard battalion with only a hundred people to defend the tunnel mouth from the outside from the outside.

After the wave of strong attacks, the defensive forces of the Longxiang army guarding the pass were forced to abandon the entrance of the cave and retreat into the tunnel potholes.

Under the attack of countless swords, earth-shaking talismans, and many impact magic powers, Dong Chou confirmed that the collapse of the three caves was hundreds of meters deep, and even used the flame talisman to burn the gravel into magma and re-cool it into a solid rock formation, before leading his troops to continue to fly westward to monitor the movement of the reinforcements of the Long Xiang army.

Almost in the early hours of the morning, the scout who was monitoring a collapsed pit in the east rushed over and reported that there was a new situation in the collapsed pit......

The size of the weapon was twice as large as the heavy celestial chariot, but the front of the vehicle was loaded with a short conical blade with a diameter of six or seven meters, which rotated rapidly to cut through rocks, and at this time, at a speed visible to the naked eye, the falling rocks that had accumulated at the entrance of the cave were twisted into pieces.

Dong Chou felt a sadness in his heart, the hole that they had to collapse with the effort of their old nose was cleared out of this strange rock-breaking weapon overnight?

The rock-breaking car quickly retracted into the tunnel pothole, Dong Chou knew that there were at least a dozen heavy-barreled crossbows and more than a hundred elites of the sword guard battalion hiding inside, the mouth of the pit was too narrow, and they had no way to force it in, and the forward of the reinforcements of the Long Xiang army would soon arrive here, even if they blew down the cave entrance again, the top of the sky would be able to drag on for half a day.

Dong Chou was disheartened, he could only lead his troops back to Liquan City first, he could only watch the reinforcements of the Long Xiang Army, and every moment he took a step closer to Juquanling, and when Le Yi and Han Jian led the first vanguard of more than 10,000 soldiers, it only took seven days to enter the Tianji Academy, which meant that Dong Chou's plan to form a coalition army of the Nine Domains to blockade Juquanling was completely bankrupt in less than half a month.

At this time, Yu Zonghu replaced Wen Boyuan and officially served as the lieutenant general of the Su Guard Army, and only then did he transfer the elite of the 300,000 Tiger Roar battalion from the east of Yanjing City to the first line of Dong's Meiwu Fort, and was also collecting ships everywhere, preparing to attack Guining City along the west of the Qiuye River after the river thawed......