Renn knew Kstakin's thoughts very well.

The King of Hills coveted the throne of the Alpine Kingdom and was determined to replace it, causing an unresolved hostility between him and Thor Green. However, his personal ambition did not affect his ideal of revitalizing the glory of the Dwarves, and the two were highly consistent.

The powerful electric cannon will undoubtedly greatly help Kestakin realize this lofty ambition, even if he is loyal to his life.

Other dwarves also realized the great effect of the electric cannon.

Rennes is not disgusted with the intentions of these dwarves. Both sides are currently collaborators and allies. If they can help, they will also help.

Unfortunately, this is impossible.

The most important core component of the electric light cannon is the brain-dividing chip, which accurately controls the energy transmission and release of the Titan engine with computing power far beyond the limit of the human brain, and combines optical knowledge to make the spell of "electric light rays" reach an incredible level.

All of this is the product of a mutated mobile phone and the heart of the master brain. It is unique. No one can create it except yourself, and Master Agulevi can't do it either.

Even if he told Kestagin the original method, he could not make an electric cannon.

Faced with the dwarves' desire, Renn shook his head decisively.

"The core technology of the electric light cannon involves my demon soul." Rennes said seriously: "There is no second person in the world who can make an electric light cannon except me."

Kestagin looked disbelief.

As the rune lord, Alan Ershi's most wise craftsman and alchemist, how could he not be able to make it as long as he got the drawings?

The dwarves thought that Rennes was just looking for excuses to refuse, but they could only sigh in a low voice.

Why should I teach such a powerful invention to the dwarves?

Renn saw through their thoughts at a glance and said, "I can give you a rune array and design drawing of the electric cannon. Kestagin, you can try it yourself, but you must ensure that it will never be spread."

Since it is never possible to create an electric cannon, they must give up from the beginning.

"good!"

Kestagin was excited, and at the same time full of confidence, and shouted: "I swear in the name of Grimneil that I will not leak the design of the electric cannon."

Renn shook his head in his heart and did not make a sound to hit him.

The rune array of the electric light cannon only plays a secondary role. After Kestagin mastered it, he will find that without the Titan engine and brain-splitting chip, the power of the electric light cannon cannot be achieved at all. It is just an ordinary rune magic array, which can only stimulate electric light rays.

Renn glanced at the turret and turned around and was about to leave.

Brestine stopped him, "Sir, do you need to send a team of dwarf soldiers from the Three Hammers to strengthen the guards of the electric cannon?"

"Don't waste manpower, just patrol normally on the city wall." Renn shook his head and replied.

The dwarves were stunned.

Don’t you send someone to guard such an important weapon?

Renn smiled and explained: "The electric cannon has a self-defense mechanism. If an enemy approaches, it will automatically counterattack. If you don't reach the legend, you will rashly approach the electric cannon and seek death."

The electric light cannon is essentially a clone of itself.

In addition to the three firing modes of long-range attacks, it also has powerful protection capabilities. The electric shield excited by the Titan Engine as a parameter has only eight rings, but with the support of huge energy, its defense ability is no less than that of the Nine Ring spell.

There are also "serial lightning" and "advanced thunder technique" approaching the enemy. The brain-dividing chip comes with telepathy and is connected to the six "secret eye" without any detection blind spots.

The brain-splitting chip is always in standby mode, tireless and does not need to rest.

It itself is more reliable than any guard.

The dwarves looked at each other. They had never seen such a magical weapon before, but Brestine was still worried: "What if it was a legendary enemy?"

What he was worried about was that the electric cannon was robbed.

"Don't worry, the electric cannon will react correctly." Renn patted the chief craftsman on the shoulder, "No one can steal the electric cannon. If someone does this, the end will be miserable." A strange smile appeared on the corner of his mouth.

Even if someone breaks through the protection system of the electric light cannon and wants to destroy it or even rob it, the electric light cannon has the last trump card to self-destruct!

The Titan engine model of the electric light cannon is different from the power armor. It is larger in size, stronger in energy, and consumes more source crystals.

It uses a medium-sized standard source crystal rod, weighing 80 pounds.

With so many high-purity source crystal explosions, the lethality exceeds most nine-ring spells. The temperature and impact force in the explosion center are enough to kill holy-level powerful people who are insufficient protection or are not cautious enough.

In other words, the electric cannon is actually a magic trap.

If an electric cannon can exchange for a life of a Saint-level powerful man, it would be worth it! Regardless of labor costs, the cost of an electric cannon is more than 79,000 gold shields, which is close to 80,000. A mere 80,000 gold shield will kill a Saint-level powerful man, even if he only kills a legendary high-level, it will be a big profit!

Rennes suddenly looked forward to it.

After he gave a few words carefully, he patrolled around Gotham City and then returned to Fort King Kong.

Kestagin followed him to get a design drawing of the electric cannon, and immediately felt like he was in danger of getting a treasure and hurried back to Gotham's Highland Fortress.

Rennes buried himself in the R&D power armor again.

He did research by himself, but the Lei Zhutian Bing was not idle for a day. He made electric cannons almost at a speed of one per day, and once they were built, they would be sent to Gotham immediately.

The city wall was just one-quarter built, but this did not affect the installation of electric light cannons.

According to Rennes's request, Brestine first built a small section on the foundation that had not yet been built as a turret. The distance between the two turrets is controlled within two miles, which is the effective range of the continuous firing mode of the electric light cannon. If the enemy exceeds two miles, the range of the bombing mode reaches three thousand meters, which is enough to form a firepower network covering the entire section of the city wall.

Ten electric cannons were installed on the twenty-mile-long city wall, but this was far from enough.

The western end of Shield Island is more than forty miles along the coast, and the half to the north is a strait, with the widest part being only more than 200 meters. The undead can easily cross from Aberakken on the opposite side, so a wall is needed.

The half to the south is a wide bay, which is also one of the two best natural deep-water ports in the New World. It is shaped like a bottle with a thin neck and wide belly, and there is only a "bottle mouth" to the south. However, the width of this bottle mouth is nearly three miles, and it can block most unflying army of undead.

But there are still some undead flying.

So Rennes asked Blestan to build a turret every two miles along the shore, and also installed an electric cannon to block the exit of the bay.

The city wall turret line is only aimed at enemies from the west.

And the enemy will definitely attack from the east.

Alan Ershi's war is always inseparable from teleportation, and the actions of the Scourge are always inseparable from the lich and the undead wizard with the dead talisman seal.

They will teleport the undead army directly to the Shield Island, and bypass the city wall and attack from the east.

However, in the larger the battle, the more limited the role of the portal is, because there are too many troops. If the teleportation array is not built in advance and the portal is only relied on casting to open, there is no time to transport many troops.

The biggest advantage of the Scourge is its quantity, which also restricts their mobility.

The best strategy is to only transmit a few elite troops, so that most troops can march regularly, forming a multi-faceted attack.

Therefore, the attack of the Scourge is also easy to judge.

In addition to the city walls, the designated urban area in Gotham City is still a large area of ​​open space, with a flat land to the east and no danger to defend. The only thing that can attract the attack of the undead is the highland fortress in the city.

Rennes selected more than a dozen points to build turrets east of the Highland Fortress to form an arcuate line of defense.

Finally, four electric cannons were installed on the top of the highland fortress, covering the area within two miles of the fortress. The residents and dwarf craftsmen who moved to Gotham are now living here, and the four electric cannons are used to protect them.

It took more than a month, and the Leizhutian Soldiers built a total of 35 electric cannons.

This occupied thirty-five places for brain-splitting chips.

Renne's chip quota is still enough. He just made 5 million gold shields from Solgreen, and he is not short of money now. However, considering that Gotham City has invested heavily and still needs to save some money, he temporarily stopped manufacturing electric light cannons.

Time passes day by day.

Nearly three months have passed since the day the city wall started construction.

The tall city wall has been built for two-thirds, more than fourteen miles, and it was built at the same time from both ends, just like digging a tunnel, and finally connected in the middle.

The gap in the middle of the city wall is nearly six miles and is closing every day.

During this period, a small undead army crossed the water surface of the strait and tried to interfere with the construction of the city wall.

This is an obvious test.

The Lei Zhu Tian soldiers sent out were scattered in Aberaken and found that the undead army was gathering, and the number had doubled compared to Yi Xinqian, reaching more than 70,000. However, the undead of this size was not many for the Scourge, and it was even a drop in the bucket.

Historically, the Scourge Corps dispatched at least hundreds of thousands of scales, and millions were also very common.

This made Rennes a little strange, and the Thunder Crown Heavenly Soldier lurking in Aberakan did not find many legendary and above strong men among the undead.

After counting, there are only a dozen legends, mostly in the early and middle levels.

The undead who constitutes this army is not high, mainly in the primary and intermediate levels, with the proportion of the higher-level ones being less than one percent, and it is not considered an elite army at all.

Various undead creatures are mixed together, like a miscellaneous army.

Rennes secretly asked the Leizhutian soldiers to expand their reconnaissance scope and circled a lot around the Aberakan area, and found that the tomb of the undead was almost empty in this area of ​​thousands of square miles.

Obviously, these undead are just a vanguard army.

The main force of the Scourge has not arrived yet.

After Renn made a judgment, he only asked the Three Hammer Legion and the Extreme Warrior to eliminate the small undead who came to interfere, and did not let the electric cannon fire, so as not to attract the attention of the Scourge Legion. On that day, Renn deliberately chose a relatively biased position and confirmed that there were no undead lurking around him before firing.

A large army of 70,000 to 80,000 undead is hidden in a river valley north of Aberracen, more than thirty miles from Shield Island.

Since their large troops did not move, Rennes was happy to do so and did not alert the enemy.

Every day, the city construction is closer to completion. When the city wall is built, it will be difficult for the Scourge to break through Gotham City again, and the difficulty will be increased by at least ten times!

However, Renne did not take it lightly.

There is also a possibility that these undead are just illusions released by the Scourge. Maybe the last second is calm, and the next second, the Xinxiang Floating City they controlled will jump over Gotham.
To be continued...