Qintong mountain stretches for thousands of weights and is 10000 Ren high. In addition to the core of Tongzhong, Tongnan and Tongbei, there are a few Alpine basins and Pingba grasslands, it is also a vast barren mountains and uneven mountains.


    Among the mountains stretching for thousands of miles, there are many Lingtian caves with strange scenery and surging Lingquan. Of course, more are the poor mountains and rivers that are difficult for birds to cross and covered under the covered glaciers.


    Shentuo ridge is an extremely insignificant difficulty deep in the Western foot of Qintong. The ridge, more than a thousand feet high, stretches for more than 200 miles, like a lying sharp blade, blocking the way from Hengshan city to Liquan.


    The Tonghe river flows around the Shentuo ridge around a big bend, and the waterway has been delayed for more than 200 Li. However, most people did not expect that at the foot of the Xigu Hetan mountain and the Donggu Hetan mountain in the Shentuo ridge, the Longxiang army has opened a remote iron ore cave in each of the past two years to mine iron ore separately. These two caves can be directly opened at the last minute, The distance between two points is reduced to only one tenth of the previous one.


    In the mining stockade on the beach of the East Valley of Shentuo Ling, lights are bright. Yue Yi, the first to ride out of the tunnel, looks up in the bright moonlight and starry night sky. The Warbird camp has rushed to the mining stockade on the beach one step ahead of time to guard against the possibility of a surprise attack by the enemy against the pioneers of the eastward troops.


    A heavy loaded crossbow is installed on the top of the heavy Tianji chariot at a high elevation, waiting for the enemy''s war birds to suddenly launch a dive attack from nowhere.


    News came from Juquan ridge that before nightfall, hundreds of war birds left Liquan city and entered the mountains at the West foot from the Hubei side of Juquan. Presumably, they would never enter the West foot of Qintong.


    Shentuoling tunnel is more than 20 miles deep and is the deepest tunnel group in the Western foot of Qintong. Passing through such a deep narrow cave is quite depressing for Leyi, although it is not a long time.


    Soon, Han Jian, Le Yi''s deputy general, came out of the mine, took a long breath, patted his thigh and sighed, "if I were the son of the Dong family, I would never have thought of it. In the past few years, the Lord took advantage of the mining of copper and iron ore to secretly dig through the natural dangers that are difficult for birds such as shentuoling and heishifeng..."


    At this time, the Longxiang army ordered to advance eastward for reinforcement was the fourth town division with Le Yi as the main general and Han Jian as the deputy general. It was mainly composed of the second battalion of the Tieya army and the soldiers and horses secretly reinforced from the north line by Han Jian and Jingjue capital guard.


    It has always been a top secret plan to dig a tunnel deep in the Western foot of Qintong.


    Not to mention that Han Jian and other generals who led the troops abroad didn''t know the details before the consul. Even the leaders of the mining stronghold in the deep mountains of the West foot didn''t know that the mining caves they were responsible for digging were accurately surveyed and located, and could be opened up at the last moment, a month ago, before Chen Hai decided to expose his tusks to the inner court.


    Yue Yi glanced back at the entrance where the vanguard was going to fish out. He thought it would take tens of thousands of people more than ten years to dig a narrow road tens of feet square and twenty miles deep in the hard rock house by conventional means. But who can imagine that the Dragon army spent hundreds of rolling blade carts in this mine tunnel.


    This is mainly caused by the immature and excessive consumption of the rolling blade mining vehicle built in the early stage.


    However, in terms of traditional resources, in order to excavate the tunnel car at the Western foot of Qintong, the Dragon army spent a total of 67 million kilograms of intermediate quenched gold and iron secretly imported from Lucheng. It is also an amazing figure. If the Dragon army had not opened up the north line transportation channel in the past two years, it would not have been able to complete such a feat.


    Before all the forward soldiers could get 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 1000 meters and a width of more than 200 meters, which is called Tiexian valley.


    If you don''t build a bridge and want to bypass tiexian Valley, you have to walk two or three hundred more rugged and dangerous roads in the deep mountains and forests.


    The plank roads built on both sides were also interrupted because of the iron line Valley, but this interruption was intentional. It was intended to make the enemy scold the Marquis and mistakenly think that the plank roads built by the Dragon army in the depths of qintongshan were intermittent and centered on their respective mining villages. I would never think that what Chen Hai planned in recent years was to open up a second artery through qintongshan outside qintongguan.


    At this moment, more than ten winches embedded in the depths of the stone walls on both sides of the iron cliff are firmly locking more than ten fine iron chains thicker than adult arms, each weighing more than 100000 kilograms, and hanging over the cliff.


    The baggage soldiers on both sides are spreading the long prepared square timber on the iron chain, so that they can build the iron chain bridge before the advance troops arrive. In this way, the middle part of the Qianli Qintong mountain road will be completely connected.


    No one believes that the Long Xiang army can quietly get through Qin Tongshan. Miao Zijin and others believe that Chen Hai is bluffing and wants to force the nine vassal to withdraw from Liquan.


    Dong Chou himself had a glimmer of fantasy and waited restlessly in Liquan city for two days. However, after learning that the vanguard of the reinforcements of the Dragon army, he quickly pushed between shentuoling and tiexian Valley in only three days. He could no longer sit still in Liquan city.


    It didn''t even take three days for the first batch of troops to reinforce juquanling. At that time, the nine fan allied forces were not even ready to attack juquanling in Lequan city.


    Whether Ge Xuanqiao wanted it or not, Dong Chou asked him to accompany him and sneak into the depths of the Western foot of Qintong to meet with the Warbird camp that sneaked in first. He planned to find an opportunity to forcibly cut off the East reinforcement channel of the Dragon army from the air.


    They hurried all the way. Kan Kan arrived in front of tiexian Valley at noon and saw the birth of Tielian bridge. From a distance, he saw Le Yi and Han Jian personally lead the vanguard troops across the Tielian bridge. Dong Chou was so angry that he had to roar up to the sky, but the defense on the side of Tiexian valley was too tight.


    In addition to the tens of thousands of elite vanguards who are crossing the bridge, in addition to more than 100 fierce fighting birds and more than a dozen heavy chariots, Chen Hai also sent out the yujianhu guard camp hastily made up by juquanling to guard these passes in the depths of Qintong mountain.


    At this moment, Dong Chou deeply realized that over the years, Tianji school has quietly absorbed too many poor children. Once these poor children are organized in the name of the new emperor, the cohesive force is so powerful that it is shocking.


    In addition to the thousands of grass-roots military officers needed by the guining army, the scale of the imperial concubine palace imperial sword guard camp, which recruited sword practitioners from the poor children of the Tianji school palace, was as high as 1000.


    You should know that the most elite Taoist yamen soldiers in Hexi have only more than 1000 generals above the spirit realm.


    Although the imperial sword guards stationed in Tiexian valley have only a hundred people, these sword guards shamelessly hide behind a shield wall composed of two or three inches thick and quenched gold heavy shields. In addition, more than a dozen light and heavy Tianji combat vehicles deployed outside and the Warbird battalion with low defense want to dive down from the air and tear open the defense line composed of the imperial sword guards and Tianji combat vehicles, How much does it cost to cut off the iron chain bridge?


    Moreover, if the iron chain bridge is cut off, Dong Chou will soon be connected. He believes that the Long Xiang army should reserve a large number of iron chains here. At most, it can delay the reinforcement of the Long Xiang army for a day or two.


    Dong Chou could only face gloomily and ordered with the guards behind him:


    "Everyone goes east along the plank road to find all the tunnel openings, look for fighters and collapse the tunnels..."


    Dong Chou didn''t believe that Chen Haineng kept all the passes along the line watertight. The murderous voice echoed in the valley, causing hundreds of Royal birds to scatter in the air like startling birds and fly eastward.


    There are four long tunnels from tiexian Valley to the East. There are built plank roads on both sides of the tunnel. It is impossible to hide from interested people at this time.


    Dong Chou led the battle bird camp. As the most elite combat force in Hexi, he even gave priority to equipping dozens of heavy bore crossbows, which are the latest imitation in Hexi. His attack power will never be weak. Once he was iron, he wanted to destroy the tunnels and caves deep in Qintong mountain. Without the cooperation of large numbers of troops and horses, it was extremely difficult to rely on the imperial sword guard camp of 100 people to guard the tunnel entrance from the outside.


    After a wave of strong attacks, the defense force of the Dragon army guarding the pass was forced to abandon the entrance and retreat into the tunnel.


    Under the attack of countless swords, shaking tunnel talismans and many impact magic powers, Dong Chou confirmed that the collapse of the three caves was hundreds of meters deep. He even used the flame talisman method to burn the rubble into magma and cool it into solid rock layers. Then he led his troops to continue flying to the West to monitor the movements of the reinforcements of the Dragon army.


    Almost in the early morning, Chihou, who was monitoring a collapsed pit in the East, came and reported that there was a new situation in the collapsed pit. Dong Chou, GE Xuanqiao and Dong pan led the Department to rush there. They heard bursts of roaring and vibration from the depths of the collapsed pit. They saw a huge war machine like a chariot, drilling out of the collapsed pit and pushing the gravel away


    The size of the weapon is twice as large as that of the Tianji chariot, but the front of the chariot is loaded with a short cone with a diameter of 67 meters and a huge spiral blade that quickly rotates and cuts rocks. At this time, the falling rocks at the hole are twisted into pieces at a speed visible to the naked eye.


    Dong Chou''s heart was filled with sadness. It took them a lot of effort to blast the collapsed hole, so that the strange broken rock war equipment was cleaned out overnight?


    The broken rock cart soon retracted into the tunnel. Dong Chou knew that at least a dozen elite with heavy bore crossbows and more than 100 imperial swords and guards were hiding inside. The hole was too narrow for them to attack, and the forward of the reinforcements of the Dragon army would soon arrive here. Even if they smashed down the hole again, they could drag it for less than half a day.


    Dong Chou was so discouraged that he had to lead his troops back to Liquan city first. He could only watch the reinforcements of the Dragon army approach Juquan mountain every moment. When Le Yi and Han Jian led the first vanguard soldiers of more than 10000 scale to enter Tianji school palace in only seven days, it meant that Dong Chou''s plan to form a nine fan coalition to block Juquan mountain had not been implemented for half a month, It''s completely bankrupt.


    At this time, Yu zonghu replaced Wen Boyuan and officially served as the general of Suwei army. He also transferred 300000 elite of Huxiao camp from the east of Yanjing city to the front line of Dong''s Meiwu fort. He is also collecting ships everywhere to attack and return to Ningcheng along the west of Qiuye River after the river thaws