"Chirp!!" The magic crystal cannon shells emitted a hot high temperature, and at the same time almost broke through the speed of sound during the flight. The whistling sound caused by cutting through the air was very harsh, but when these shells were about to fall into the huge army of undead dwarves, gray-white protective barriers suddenly rose above the heads of these dwarves.

With the power of the flares, players on the wall can use the Hawkeye Telescope to clearly see the undead dwarf mages who raised their staff. More than one hundred undead spell casters formed a huge group of dwarf necromancers, and protective barriers blocked the landing points of the magic crystal cannon shells. Under the blockage of these protective barriers, the magic crystal cannon shells that hit the magic guard wall exploded. The huge light made the players holding the Hawkeye Telescope almost blinded by the bright light at that moment.

Although the protective spells arranged by these undead casters were instantly torn apart by the impact force generated by the explosion, the shells that would have fallen into the middle of the undead troops were blocked outside. The terrifying flames and impact force generated by the explosion only made a small hole on the outside. The damage caused by more than a dozen shells was less than a hundred undead dwarves. This attack really made the dwarves on the wall depressed.

Of course, no matter how depressed these dwarves were, their speed of loading shells did not slow down at all. Almost after the first round of shells had all exploded, the second round of shells was fired out from the magic crystal cannon that had just completed the retreat of the gun barrel. The whistling shells rushed straight at the army of undead that had released the magic wall. This time the number of shells was even more, because nearly fifty magic crystal cannons of large and large caliber were fired on the entire wall at the same time. Although there were only twenty-one magic crystal cannons with large and large caliber, the others were small caliber that could only fire unstable compound shells.

Although the magic crystal cannon shells made of these unstable compounds are a little powerful, the explosion power caused is still very considerable when twenty or thirty shells landed in one place at the same time. The most important thing is that the dwarfs of this small-caliber magic crystal cannon shells produced a lot. The first wave of small-caliber magic crystal cannon shells was only for the test of the effect. When the second wave of shells was fired, all the dwarf gunners had a ferocious expression on their faces. A total of 100 small-caliber magic crystal cannons were loaded in less than twenty seconds. The flame openings of the rapid firing shells rose at the same time, and the continuous sound of the cannon shells coming out almost formed a line.

The originally beautiful dwarf queen Vivichra, behind these magic crystal cannons, was completely withered. In order to avenge her father, she worked for two days and one night to improve the defects of the unstable compound shells. Not only did the power of the shells increase by 20%, but the range stability after firing was also greatly improved. The most important thing was that she improved the explosion stability and explosion power of the unstable compound so that these shells would not explode after being slightly impacted. The most important thing was that this transformation was not complicated, and at the same time it increased the storage time of these unstable shells several times, extending from the original storage of up to one week to nearly two months. So the nearly five hundred shells that were originally stored were revitalized again. Of course, even if the modification was not carried out, the shells would not be destroyed, because they were now useful.

Of course, the total number of shells stored by the dwarves is definitely more than one thousand at this moment. Therefore, even if hundreds of small-caliber magic crystal cannons were fired rapidly, the number of shells did not drop rapidly. The only problem is that transporting shells is very hard, and tens of thousands of players acted as transportation brigades and could only barely supply dwarve gunners who had become mechanically operated. At the same time, more players took the shell manufacturing drawings given by the dwarves to create shells in the rear. Although the dwarves had a cold relationship with the players, in the face of the undead attack, the dwarves could only take out the shell manufacturing drawings and handed over to the players to make. Although the players were only responsible for the loading of shells, the shell shells and the most important fuse parts were completed by dwarves craftsmen on the ground.

Every hour, the player transport troops arrive at the ground with thousands of shell shells and fuses placed in the backpack space. They are handed over to the players to make them into shells and sent to the walls. In less than two days, the dwarves' cumulative number of shells has exceeded 10,000. Of course, this number of shells basically exhausted the last little metal material inventory of Berkner and the dwarves. Now even if Berkner wants to repair farm tools, there is no iron ore anymore. Although Berkner's players and miners work hard to dig the mine cave to make money, because the price of iron ore in the entire Berkner Town soared by 30%. If they don't dig more to make money at this time, they will not have the chance to make this money. If the iron ore transportation from other places arrives, the price will return quickly.

Although some players will continue to fight in Lava City, the rising trend of metal ore prices will continue. So they chose to hoard rather than sell, but Chen Kai had already contacted Lin Lei. At the benchmark price of each ton of metal ore, they bought thousands of tons of ore from the other party at a price of 10% higher than the base price of metal ore per ton. As long as these ores are transported, the shortage of ores in Berkner Town will greatly alleviate.

Perhaps direct transportation of metal ingots is more cost-effective than transporting ore, but the key problem is that ore is much cheaper than metal ingots. Under the operation of dwarf craftsmen, dwarves with the same amount of ore can extract at least five percent of metal ingots than players, and at the same time they can also extract rare metals in the ore slag. If dwarves can block the demons and trap them in the gem abyss, then Chen Kai may be able to rely on the dwarfs' refining technology to continuously accumulate more metal ingots and rely on the price difference generated by the metal refining. Although this way of making money was proven to be almost feasible in the end, because the melted metal ingots were eventually sold very few. Most of them were consumed internally.

With the support of Chen Kai's pockets in Berkner Town, the dwarves stored enough shells to shoot at least one hundred rounds. According to the calculation of three to four times per minute, it can be fired for at least twenty-five minutes. Of course, generally speaking, about fifteen rounds are fired, and these small-caliber magic crystal cannons need to be fired to stop firing and cool down.

However, more than a dozen rounds of artillery shooting have created more than a dozen huge gaps in the gradually approaching undead dwarf troops. Although these magic crystal cannon shells were intercepted by those undead dwarf spell casters, the continuous number of attacks and the power of the shells explosion at the same time caused the undead dwarf to suffer heavy losses. The original undead dwarf troops of thousands of scales were only a very rare one left after the fierce shelling. This situation made the dwarfs on the wall extremely happy.

"No! Why is there only one unit of attacking undead troops!" Chen Kai looked at the extremely thin undead troops in the distance. He raised the Hawkeye telescope in his hand to observe and was shocked to find that the undead who seemed to be well-equipped were actually broken garbage. At the same time, the dwarf spellcasters who were originally hidden in the undead troops were slowly retreating. Now these leading dwarf undeads are completely attracting abandoned children with firepower on the city wall, with the purpose of exposing the dwarves to the dwarves' defense facilities on the city wall. Obviously, the purpose of the undead has been achieved.

The dwarves attacked these undead dwarves because their ancestors were defiled. The dense explosions destroyed almost all the undead dwarves' corpses and completely saved them. When the last few undead dwarves were blown to pieces, the dwarves on the city wall celebrated happily. But soon they were not happy because these dwarves also discovered new undeads that gradually appeared. This time, there were even more undead troops appearing on the streets, and there were also some engineering weapons mixed in.

Don’t think that as the devil of the undead, Ratamitheus will only use the undead army to attack. In fact, if it weren’t for the lack of resources, Ratamitheus could definitely make more terrifying weapons of the undead war. This time, due to the ample time, more than a dozen white bone crossbows mixed with metal and wood appeared in his army. These white bone crossbows are extremely large in size, three or four meters wide and five or six meters long. The white crossbow arms are made of more than a dozen huge white bones. But don’t think that the power of the crossbows fired by these crossbows will be very poor. When these white bone crossbows began to fire extremely thick white bone arrows on the city wall, the dwarves knew the purpose of the opponent’s first round of attacks and the power of these white bone crossbows.

The roaring crossbow arrow rushed towards the dwarf's magic crystal cannon very directly. Although the dwarf also counterattacked while the opponent launched an attack. However, the bone crossbow machine protected by the bone demon Ratamitheus, hundreds of undead dwarf casters, was not destroyed by the shells, but the fallen bone crossbow arrow directly killed more than a dozen dwarf gunners and at the same time pierced through a large-caliber magic crystal cannon.

The arrows of these giant white bone crossbow arrows are extremely sharp, so sharp that even if the arrow fragments are gently stroked on the ground, a shallow trace can be drawn on the city wall that is melted into metal. When the second round of crossbow arrows of the undead swept over, the dwarves on the wall were even more severe. Although the small-caliber magic crystal cannons can be quickly transferred, the large-caliber magic crystal cannons need hundreds of people to move after they are placed. After several rounds of crossbow arrow attacks,

There were only less than ten large-caliber magic crystal cannons left, which was because these magic crystal cannons were hidden behind rocks like fortresses. However, these magic crystal cannons hidden behind rocks like fortresses were not good, because the rock turrets blocking them were already full of holes by giant white bone crossbows that fell continuously. A fortress turret was directly pierced through the extremely sharp white bone arrows by a huge crossbow arrow, and almost shot a dwarf gunner inside.

Faced with the crazy attacks of the undead army, the dwarves on the city wall were beaten to no aura. Although Ratamitheus did not have the little demon army to assist with long-range firepower, he had his own way to supplement this aspect. However, although the white bone crossbow chariot was powerful, the extremely sharp white bone crossbow arrows consumed very much. Generally speaking, hundreds of bones of the undead bones could make such a white bone crossbow arrow. These rounds of attacks consumed all the white bone crossbow arrows accumulated by Ratamitheus, but for the dwarf wall that was completely silent, such an attack was enough.

Seeing the miserable appearance of the dwarf on the wall, Ratamitheus waved his hand and left the last few white bone crossbow arrows. Then the huge undead troops began to slowly move towards the wall where the dwarf was. Six death knights with frost power all over their bodies rode their double-headed hellhounds and led the huge undead troops to attack the city wall. More than 30,000 undead troops formed a huge gray attack line and rushed out of the narrow streets. Although the dwarves arranged several small walls along the way to prevent the undead troops from advancing rapidly, it took only a matter of minutes to break through these small walls under the impact of several huge bell hammer demons.

Although the dwarves are very clear about the importance of wall defense, in order to leave enough shooting territory for the magic crystal cannon on the city wall, the blocking walls built are very low and only more than two meters high. The walls of more than two meters high have no blocking effect in front of these clock hammer demons, but the explosive buried under the walls made the crazy rushing Zhong Hammer demon suffer a great loss. However, the shock wave generated by the explosion cannot cause a devastating blow to these clock hammer demons. The effect is to make Ratamitheus lose thousands of undead troops. However, the bone demon with more than 30,000 undead troops will not even frown at such losses, although he has no brows and no muscles.

However, for the dwarves, they were extremely anxious about every section of the wall being broken through. Even afterwards, the undead's offensive slowed down due to the injury of several Zhong Hammer Demons. However, the other party began to learn to learn to do so and no longer forcibly collapse the wall but chose to climb over. Of course, the dwarves are not fools. They are very clear about how fragile the walls they set up are, so these walls are not for blocking, and the real purpose is just to bury explosives. Although the Zhong Hammer Demon will not proactively detonate if they do not hit the wall, it does not mean that the dwarves themselves cannot detonate the explosives in the wall. In order to prevent the detonation system from being destroyed, the dwarves arranged dozens of detonation lines, but in the end, several of them had problems under the bombardment of the bone crossbow.

But in the end, when tens of thousands of undead troops crossed several walls, the dwarves pressed the detonating magic crystals. The magic power shot out one after another brought the dwarves' anger to pass through the pipe composed of slender mitral lines. Finally, it poured into the small magic explosion device buried in the wall. The small magic power eventually turned into a huge source of explosion. When continuous explosions appeared in front of Chen Kai, his only choice was to raise his shield and shrink himself under the guardrail on the city wall. In fact, it was not just him who did this, but all the players who were preparing to participate in the defensive battle in the entire city wall did this, because soon the sound of stones hitting the shield they were holding came from, and some unlucky players were even killed by several huge rocks flying towards them.

Chen Kai was also hit by several rocks. However, the rock he had good luck hit the shield with the largest rock, but his fist was large. Although the speed was very high when it was flying out due to the explosion, Chen Kai used the method to tilt the shield. The raised shield just formed an oblique angle with the rock flying in. The rock hitting the shield did not cause much damage to him. After a heavy blast, he flew out behind the city wall. As for whether it would hit people after falling behind the city wall, Chen Kai could not take care of it. At the same time, there were other things that fell to the city wall, such as bones that were thrown out.

However, the Dwarf's blasting attack that had been prepared for a long time did not cause any damage to the undead troops. Although Ratamitheus was still very shocked and even angry at the dwarf's counterattack. However, in Robert behind him, all this was pretended by Ratamitheus. It was very clear that the power accumulated by the Bone Demon now. Although the Dwarf's attack destroyed thousands of troops of the Bone Demon, it was still a little far from the real Bone Demon's degree.

Although Ratamitheus sent the dwarf Death Knight to launch an offensive at the beginning, not many of the undead troops crossing the wall were temporary consumables. The real core troops were almost not damaged. Perhaps except for the Zhong Hammer Demon who attracted the eye at the beginning, the other core troops had never advanced. The smoke generated by the explosion blocked the dwarf's vision, and the dim environment after the flares disappeared made the dwarfs unable to judge the strength of the undead who passed through the wall. As a result, the white bone demon who was slapped his thigh bone and jumped his feet with just a pile of garbage, the dwarfs completely let the road to the city wall be opened, and all this was done willingly.

Seeing this situation, Robert's choice was very simple, that was to take his husband away from the bone demon who was pretending to be stupid again, and at the same time raise the other party's danger level again. Robert felt that maybe he might be sold by the other party and he might be very happy to count the money for the other party. His husband would be more likely to be sold by him and then run happily to ask the other party to sell twice. He was wary of Robert Ratamitheus for not caring about him, because the only thing he cared about now was the expression of the dwarves seeing his elite troops appearing under the city wall. Unfortunately, the distance was a bit too far, and Ratamitheus could not see the expression of the defenders on the wall clearly, otherwise he would be happier.

In fact, Chen Kai had already discovered that the situation was wrong. At the same time, he also found that the situation was wrong. They all saw Chen Kai picking up the bones falling from the ground and pinched them gently. The bones that were supposed to be very strong were crushed directly, as fragile as flour. In this case, the dwarfs did not think that it was because Chen Kai's hand was strong. No matter how powerful it was, it was impossible to crush the skull like rubbing dough, or use their fingers. The only possibility is that these bones are rotten or
Chapter completed!