Time switches to a few minutes before the earth-shattering explosion.

The very ostentatious tens of thousands of air cavalry troops of the Red Jade Tower, after coming out of the Barbarian Bone Mountain Range, walked in a almost straight line along several major cities on the mainland, and was seen by everyone on the road. Judging from the direction of travel, everyone can know their destination.

Immediately it was fried.

The Yan Kingdom side, which has spies in many cities, naturally learned this completely undisguised information.

"Blatantly coming, it seems that Hongyulou has a lot of confidence in himself. ”

"Get ready to attack!"

"Other borders should also be guarded against, maybe this army is just used by the enemy to attract firepower, and all the secret posts on all sides are keeping an eye on it!"

In Heishui City on the border of Yan Kingdom, many soldiers were busy in an orderly manner, a large number of archers and crossbowmen were in place, and heavy weapons defending the city were pushed to the head of the city, bed crossbows, arrow carts, catapults, etc. were all very common, and some equipment like modern naval cannons with rune formations were also pushed onto the city wall by Daoists dressed as Taoist magicians.

What's even more peculiar is that between the cracks in the bricks and stones on the walls of the four sides of Blackwater City, there is also a faint flow of aura unique to the silky magic.

Lu Ming and Yan Yiming were also standing at the head of the city, their eyes calmly looking at the eastern sky.

When they saw the eye-catching flying force of the Red Jade Tower coming over in the distant sky, Yan Yiming took a deep breath and shouted, "Open the protection array!"

"Wow!!"

The Daoists on the four city walls responded in unison, urging a certain formation that had been buried in the city wall a long time ago.

Hum - The spiritual light flowing from the bricks and stones inside the walls of Blackwater City suddenly brightened a lot, and a golden pillar of light rose at the same time at the position of the towers at the corners of the four city walls, and after rising to a height of 100 meters, it suddenly turned around and converged in the sky above the center of Blackwater City.

A layer of translucent walls of light emerged between the brackets built by the pillars of light, turning into a giant light shield that protected the entire Blackwater City.

This is a large-scale formation of the city protection type, and it is also a range that is protected even in the upper air, and it is likely that even the underground is protected.

This is one of the main strengths of the Yan Kingdom to fight against the Yuan State coalition army so far, from the handwriting of the formation mage of the Star Sect with Lu Ming as the main one, in addition to many other hole cards. Otherwise, in the face of the alliance composed of the Yuan Kingdom, which was originally only a small chip weaker, and many small countries, it would be impossible for the Yan State to support it so far.

With the protection of this protective array, you can effectively defend against the air force bombardment of the Red Jade Tower. These people in the Yan Kingdom are not mainly cavalry like the Northern Grasslands, so they naturally have to take advantage of the city.

- Whether it can defeat the alliance of the Red Jade Tower and the Ten Thousand Beasts Mountain Alliance will not be mentioned first, but as long as this wave of attacks is blocked, at least it can frustrate the opponent's spirit.

High in the sky, Jiang Yan waved his hand, causing the tens of thousands of air forces behind him to stop advancing at a distance of thousands of kilometers from Blackwater City, and then looked at the enemy defense line at the head of Blackwater City below, and looked at those gun-like equipment twice.

"Protective Formation...... Hmm, have you moved out the Rune Energy Cannon?"

This thing is the work of the production reincarnation of the Star Romanmon, and it is a large fortress cannon, based on alchemy supplemented by some technology from other worlds. It can gather free energy from environments such as Heaven and Earth Yuan Qi to recharge, and then compress the energy into a fragile structure and blast it out.

The power is acceptable, one shot can blast a pit more than ten meters wide and two feet deep on the flat ground, and if it is used to attack the city, it can gather ten salvos to break through the city gate of an ordinary city without special protection at a distance of seven or eight hundred meters, and the power can be greatly increased if it is charged to the limit, and even one shot is enough to break the city gate (at the cost of scrapping the rune cannon).

However, if this thing exceeds 400 meters, the accuracy will be hard, and the landing point error will reach more than two zhang, which cannot be used to deal with agile strong targets, and the charging of the rune cannon will take ten seconds to have enough lethality, in addition, a shot must be recharged again to fire.

What's more, because it mainly relies on gathering heaven and earth vitality to recharge, the rune cannon must also carry the supporting array parts of the Gathering Yuan Array and place them before firing the cannon. It's not impossible to artificially accelerate the charge, but then the Daoist himself has to contribute his own energy.

Looking at it with Jiang Yan's current eyes, he naturally dislikes this thing. Compared to it, its own electromagnetic cannon is so good that it can throw out countless streets.

But for the Yuan State Alliance, this thing is a big killer, after suffering a loss, whenever it appears on the battlefield, it will be prioritized, because of restrictions such as the Juyuan Array Disk, most of them are now used to defend the city.

Now it is being used against Jiang Yan's army. In addition, those bed crossbows, arrow carts and other things also posed a certain threat to the air force under Jiang Yan's command, so he ordered the army behind him not to get too close to Blackwater City.

The arrow car is also the work of the reincarnation of the Star Roman, a group of reincarnated people who are good at refining weapons and craftsman series skills, and carried out a reform of the ordnance factory in Yan China, not only producing many large-scale war ordnance with efficient technology, but more importantly, they also used refining technology to make mass production magic weapons as efficient as an assembly line.

Although the mass production of this assembly line magic weapon is far from being comparable with the works made by the craftsmen with the assistance of data intelligence and brain in Jiang Yan's Red Jade Building, the soldiers' standard swords, armor, arrows and other ordnance that does not require unified high-precision specifications can be quickly mass-produced and manufactured close to the efficiency of a modern assembly line factory.

The Yan Kingdom has accumulated many years of resource reserves, and in this way, in a short period of time, the technological reforms brought about by the Star Romans Reincarnation have been transformed into war heritage.

Thousand Arrows Cart - A large machine made mainly of mechanism technology, as long as a sufficient number of arrows are inserted, it can quickly fire round after round of arrow rain at the scale of a hundred arrows each time, and the range and lethality are comparable to the full output of a group of elite archers.

The gap between the military strength of the middle and low-level soldiers of the Yan State and the allied army of the Yuan State was largely smoothed out by these things.

For Jiang Yan's air force, the threat of the Thousand Arrow Cart is even greater than that of the bed crossbow and rune cannon, and the combination of high attack frequency + large-area coverage type damage is paste, even if the flying beast soldiers are all excellent in air mobility, they will inevitably be unable to dodge, and in the end they can only choose to resist hard.

It was enough for these middle- and low-level soldiers to be brought out to pretend to be forced and support a period of pomp, and Jiang Yan did not intend to let them be damaged here.

Seeing that the Red Jade Tower Air Force stopped, there was a loud roar of "Release!!" from the side of Blackwater City.

I saw that the muzzles of the rune cannons that had been charged on the top of the city were all spewed out with spiritual light, and they shot out mottled balls of energy light with a diameter of about the size of a swimming circle, and hit them straight at them, without deliberately aiming, and the many flying beast soldiers on Jiang Yan's side were all gathered together to be the best target.

In addition, those large bed crossbows and thousand-arrow carts also exerted their power at the same time, and the crossbow spears with terrifying penetrating power and countless arrow rains falling from the higher sky at a projectile angle attacked Jiang Yan's side one after another.

It is worth mentioning that these attacks in Blackwater City were all launched from the inside of the Great Protective Array, but when each attack came out, it was like drilling out of a water film, which only made the shield of the Great Protective Array easily pierce countless large and small circular ripples, and immediately subsided and changed back to its original state after less than half a second. It seems that this shield is unilaterally protected, that is, the inside can go out to the outside, but the outside cannot go in.

Jiang Yan naturally would not let the enemy attack, without his signal, behind him there were hundreds of Praetorian Guards who were all over the entire air force, and they acted at the same time, they sat on the backs of the beast soldiers, and raised a formation plate style magic weapon with both hands to inject their own divine power, and in an instant, these magic weapons bloomed with the aura of Taoism, and with these array disk magic weapons as nodes, a large military formation was formed directly in mid-air, condensing a layer of large sphere shields with a width of two or three thousand meters with the same color and luster to cover the entire Hongyulou Air Force inside。

The rain of rune shells, ballistas, and arrows that hit this military protective array only made the shield shake slightly, and there was no sign of shattering.

Jiang Yan didn't pay attention to the constant explosions outside the shield in front of him, and stared down at the protective array of Blackwater City below.

"I've got to get rid of this iron shell first. With a wave of his hand, the twenty rune soldiers in the legion behind him flew to the front of the military formation and lined up, all of them set up the two barrels of the mounted special electromagnetic cannon on their waists, and after a few clicks, the two cannons switched to the "heavy attack mode" in one.

"Zhi Brain, can you break that moat?"

"Analyzing and calculating ......"

Zhi Brain dutifully reported, "Target, the hub of the city protection formation. The lock is complete, the safety is lifted, and the shell is selected: armor-piercing coordinate projectile. Charged—'

Seeing the movement on this side, although there was a faint commotion, the Blackwater City side quickly calmed down.

A few seconds later, clusters of blue-white fragments of lightning shone from the specially equipped cannons of the rune mechas, and the voice of the wise brain fell, "—fire!"

Twenty bright orange light cannons erupted from the muzzles of the rune soldiers, neatly passing through the protective array arranged by the Praetorian Guards, and then crashed into the position of the rising array light pillars at the corners of the two city walls of Blackwater City in an instant.

If you slow down the perspective countless times, you can see that the rune array deeply engraved on the characteristic cannonballs hidden in the front of the orange pillars of light are all lit up, and a violent torrent of energy is spewed out behind the cannonballs, further increasing the advance force of the cannonballs, and the entire projectile body is still rotating violently like a drill bit to frantically pierce the light shield emitted by the protective array of that layer of Blackwater City, and in the piercing friction sound that spread throughout the battlefield, it forcibly tore a crack in it, and the entire projectile body pierced into it little by little, directly drilling into the wall of the city wall。

Everyone on the inner wall of Blackwater City only felt a slight tremor under their feet, and at the same time, there was a crisp sound like glass shattering in the two places where it was bombarded, and a large number of masonry explosions were smashed.

Without waiting for them to react, Jiang Yan, who was watching this scene, sensed the connection between the coordinates of the seven or eight remaining submachine located inside the Blackwater City Wall with his ability, and just smiled slightly.

"That's right, I'll try to see the new ability in action! Coordinate determination, data transmission! Try this-rune city-breaking bomb, explosion!"

In the bombed crater inside the wall, cannonballs of different shapes and degrees of fragmentation were buried deeply, and inside the shells, the center of the orange-red spar the size of a fist that was not broken together was hidden in the bullet body, and the small eyes on the head of the larvae of a red jade blood wasp lit up with a silver brilliance.

Then, next to these shells, a chain of data streams containing countless mysterious codes suddenly emerged from the void, and the data streams were intertwined with each other, and in less than two seconds, they quickly weaved into the phantom form of a metal ball the size of a basketball, and then at the moment when the weaving was completely formed, the state of these spheres instantly changed from illusory to an entity.

Five of these metal balls appeared in the holes in the walls on both sides.

With a thud, countless runes erupted from the metal sphere, and then in the next instant, they all shattered, erupting into pure, devastating heat and impact that spread out, crushing everything around it into slag.

At the same time, it was also crushed by a layer of golden shield energy that was covered again, as well as the foundation of the Blackwater City Protective Array that was buried deeper in the wall and was five or six meters away from the metal ball, which was wrapped in countless layers of protective prohibitions.

From the outside, it was one of the two pillars at the four corners of the walls of Blackwater City, and suddenly there was a violent explosion from the inside out.

The energy storm that burst out with unparalleled terrifying destructive power turned the entire base of the wall and the towers above into ashes, and the diffuse shock wave also destroyed most of the east wall connected to it by the way, and the buildings in the huge Blackwater City were also affected, about a quarter of them were directly reduced to ruins, and the rest was also damaged in the aftermath of the subsequent shock.

The original protective array was torn apart the moment the explosion appeared.

The rune cannons, bed crossbows, thousand-arrow carts, and many archers and military wizards that had been arranged on the city wall were all swept up and turned into ashes.

In addition, this Blackwater City, which guarded the Yan Kingdom's 100,000 heavy soldiers, was directly killed by this explosion, and more than 20,000 people were seriously injured and lost their mobility!

As a result, Jiang Yan's unexpected ability to transmit data, combined with a batch of city-breaking rune bombs specially prepared, was outstanding!

It's time to wrap up, and maybe move on to the next stage of the map in six chapters