The waves of the night are surging in the darkness.

Wave after wave, crashing against the islands and reefs of the sea.

The sea is not calm, and the sea is also very lively under the islands that are hidden under the calm seabed.

The craftsmen of the Nine Shadows Country, in the coastal waters near the southern part of the Six Heavens Continent, under the islands with a large area, there were sharks and water ghosts working together to quietly dig the secret passage.

These tunnels hidden in the lithosphere under the sea lead deep into the island's depths. All of them are several zhang or even dozens of zhang in diameter. The seawater poured in, enough for the largest model of the Nine Shadows Country's Wave Boat, to sneak into the depths of the island's underground.

After entering the dark passage, you will pass through the secret passage in the sea that is slowly upward. These secret passages lead in all directions and are intricate. It's not a ghost soldier of the Nine Shadows Kingdom, and it's not a ghost who doesn't belong to the guiding signs on the rock wall, and you can't get out if you go in.

After passing through the tunnel, the boat will come to the depths of the island, in an underground cave dug out by hand.

In the middle of this place is a man-made underground lake or pool, which is connected to the tunnels that lead to the ocean at a deeper level. But because the secret passage is here, all the way is slowly upward, and the craftsmen of the Nine Shadows Kingdom secretly built a drainage outlet connecting the secret channel, which leads directly to the sea where some streams on the island flow into the sea, and the drainage channel is embedded with flowing water beads that can drive the water flow. Once opened, it can be used to drain undersea tunnels that overflow with seawater.

In addition, the entrance to the underground tunnel has a round door like a manhole cover, which can be opened and closed at any time, so the waterhole or lake in the cave built underground is also full of water, but it will not overflow.

The engineering skills of the Nine Shadows Kingdom are superb, and they are at the peak of their achievements in the Netherworld, and they are definitely worthy of the four words of magic workmanship.

It's just to facilitate the Falling Wave Boat of the Nine Shadows Country, and to have a mooring point.

And the boat that comes in along the secret passage can be moored in a man-made underground lake or pool. The workers who had been waiting in the cave for a long time unloaded the materials that had been worked tirelessly by the wave boat, which could carry 8,000 catties of heavy loads.

A steady stream of supplies and ammunition, as well as grain, grass and medicine, and even soldiers and craftsmen, arrived here quietly under the nose of the Northern Yin Dynasty.

As for the warships and materials that the Shangqing boy saw on the sea during the day, on the coast, and the materials they were transporting, it was also true, but that was what he showed the Shangqing boy, and there was no need to hide it.

It's a good trick.

Even if the Shangqing boy widened his eyes and saw all the eyeballs fall out, he would not be able to discover the plan that the Nine Shadows Kingdom was secretly carrying out under the vast sea and waves.

On the rock walls around the caves with underground lakes or waterholes, the craftsmen of the Nine Shadows Kingdom worked day and night to dig hidden tunnels in all directions, reaching the upper rock walls, and the underground fortifications that the craftsmen on the ground excavated and built from the ground on the island.

Further up, there are underground stone chambers with heavy walls and solid domes supported by solid stone pillars. Connecting them are underground tunnels that extend in all directions.

You can follow these secret passages and quickly maneuver to any point on the island.

Many of these stone chambers were used by the garrison to store food and ammunition. There are also places near the island's mountain walls or coastal rock walls that have been converted into forts.

If one of the islands, judging by the area of the island on the sea, looks like a place that can only accommodate 10,000 ghosts, after this transformation, with these underground dark rooms and secret passages, in fact, the Nine Shadows Kingdom can double or even triple the number of garrisons here.

What the Nine Shadows Kingdom strives to do is not only to transform these islands that have stood still on the sea for thousands of years into barriers, but also to land on the Six Heavens Continent in the future.

This is also the reason why Xiao Shizhu must completely control the sea at the negotiation table.

Without the many islands dotted around the entire Blind Sea, the Nine Shadows Kingdom not only has no barrier, but even if it wants to attack the Six Heavens Continent, it is beyond the reach of the whip.

It is also possible that the transport line will be too long for Hela, making the attack slow or even failing as a result.

In addition to those dark chambers and underground passages, the Nine Shadows Kingdom also hides a lot of secret weapons underground.

Many of the islands are located in the dark ground closest to the surface of the island. The military industry of the Nine Shadows Kingdom has begun to dig a lot of circular shafts that are more than ten zhang long and reach the ground even above them, although they are underground.

The diameter of the well is also more than a few zhang, making the whole shaft not only deep but also wide. The interior is made of a frame welded with black iron rods of different lengths, and another one is poured with clay, sand, white plaster, glutinous rice juice and other materials to strengthen the inside. And on the inner wall of the watering, a waterproof talisman is depicted.

The opening in the ground above, round, made of materials such as a skeleton made of dark iron and high-temperature resistant green steel, is as round as a manhole cover, covering the exit of the shaft, which is embedded in the ground of the island above, and also blocks everything below the ground.

And it is controlled by the message control room of the underground organ, which can be controlled by the organ to open or close it at will.

Once closed, it's like a manhole cover for a sewer, and you can't see what's underneath it.

In the Ordnance Prison of the Nine Shadows Kingdom, the supervisors and craftsmen who served as technicians quietly assembled the weapon parts transported by the warships at sea in this shaft.

Finally, it was composed of a thing and erected in the well.

The object gradually shrinks from the bottom to the top, the top is small, elongated, the lower part is square and the middle is square, and it flashes a faint restrained orange, which appears a little dull. The dark red tip is flattened and sharp, and it is about a foot long. It's really a behemoth covered in iron and metal.

Like a giant sword, it can also be called a steel behemoth.

There are also four dark red bead burning stones embedded at the bottom, and a red fire bead.

Both of these things come from the volcanoes in the southern part of Xuanyan Continent or in the endless wood fire forest. Some of them also come from the billowing magma on Black Dragon Island.

And the behemoth that weighed 1,000 catties in the shaft was also surrounded or buckled by some brackets, so that it stood tall and straight in the shaft.

And these brackets and buckles are also controlled by the mechanism, which can be tightened freely. As soon as the buckle on the bracket is loosened, the behemoth will either rise into the air or tip over immediately.

This behemoth is the large artillery newly developed and developed by the Nine Shadows Kingdom Military Weapons Supervisor through the works of the ancient gods and demon gods.

For the time being, it is still a secret weapon that belongs to the top secret of the Nine Shadows Kingdom.

To be precise, it is a cannonball standing on a large generator.

Xiao Shizhu once visited the whole process of launching this object in the secret test site of the Ordnance Superintendent. Once launched, the object suddenly soared, and when it left the ground, there was immediately a flame at the bottom, the heat dispersed, and the heat wave rolled non-stop.

A huge amount of fire and an invisible power will lift this behemoth-like cannonball into the air in an instant, thousands of feet above the ground.

The fire at the bottom of it is dragged, like a meteor, and it will not disperse for a long time. Everywhere you go, you can make the sky dark red. It takes a while for the original color to slowly return.

The cannonballs in the air would streak across the sky, leaving an arc of fiery red light and shadow, and then fall towards the ground in the distance. Propelled by the fire beads and burning stones at the bottom, the shell flew hundreds of miles away in an instant, hitting a target under the sky, a hundred miles away from the launch point.

Due to the huge size of the cannonball, the explosion range formed after landing was not comparable to any ghost cannon of the Nine Shadows Kingdom in the past. Even the rate of fire can reach tens of miles per breath, which is comparable to the fastest rate of fire in the Nine Shadows Country.

Under the range of the explosion, within a radius of one or two miles, it was instantly covered by air waves and hot winds, and at the same time, it set off waves of fire that scattered and rushed, and the ground was immediately covered with scorch marks.

Even if it hits the surface of the sea, it can raise flames and set off a sea of fire.

Lai Yueqi and his right-hand man Mu Xian'er also added the ghost qi manipulation technique left by the ancient gods to this cannon, and through continuous research, this technique was connected to the Nine Heavens Mirror.

The launcher can select the hostile target that appears on the mirror on the Nine Mirrors and remotely control the cannon to accurately hit the target. The error is only a few feet away.

But for such a huge explosion range, this distance error of a few feet does not matter.

After Xiao Shizhu watched the trial hair, he was immediately excited in his chest, clapped his hands for a long time, and shouted three "Okay" in a row. ”。

Then he picked up his pen, and after a little thought, he gave this cannon a name - the Shadow Ghost Cannon!

And the Nine Shadows Kingdom Weapons Supervisor also began mass production of this cannon.

The summer palace of the military, political and military endowment departments, according to the secret order approved by Xiao Shizhu, gave priority to the ghost cannon to these islands near the southern area of Liutianzhou, which had begun to fortify and build fortifications.

Moreover, the Nine Shadows Kingdom has kept all this absolutely secret. Transportation, installation and assembly, as well as the placement of launchers and storage sites, are carried out in secret.

There are many soldiers on the island, and few ghosts know what is placed in these shafts.

This shadow ghost cannon will be the killer weapon of the Nine Shadows Kingdom after the resumption of the war between the Nine Shadows Kingdom and the Northern Yin Dynasty in the future, and Xiao Shizhu can hide them very well.

Even if the Shangqing boy is close at hand, and he looks far away during the day, and the air cavalry reconnoiters at night, he can't see the doorway under the islands in the nearby seas.

And the air cavalry of the Beiyin Dynasty tonight left the sky above this sea area, and a Nine Shadows Kingdom Wave Ship that was sneaking on the bottom of the sea entered the sea area within a radius of 100 miles, and the island closest to the southern coast of the Six Heavens Continent was underwatered.

The boat is in the dark passage, and slowly sails up along the dark passage.

A short time later, the boat burst out of the waves at the end of the tunnel, in the pool of water built into an underground cavern.

When the bow of the ship came out of the water, a huge blister arched over the surface of the water, which had been like a flat mirror.

In the blink of an eye, the water splashed in all directions, flying in all directions, and lifting water curtains.

The boat emerged from the blue waves and anchored at the edge of the pool. At the same time, a falling curtain of water shrouded the hull of the ship, which was exposed to the water.

Directly above the hull, in the middle of the hull, after the curtain of water dissipated, a hatch lid slowly opened.

On the hatch cover, dripping water kept falling.

One of the sailors in the boat, the ghost soldier, took the lead out of the cabin, stood aside, leaned down, reached into the entrance and exit by the hatch, and took a ghost hand to pull the next ghost out of the cabin.

The whole ghost who came out immediately felt that the light of the hundreds of centipede beads and night pearls inlaid on the rock wall in this cave was a little dazzling, and hurriedly raised their hands to cover their eyes.

After a while, he put it down again.

This ghost horse has a human face, tiger striped bird wings, and a silver armor shining silver in the light of the orb.

It was Yingzhao who came.

The local general, a ghostly general, was already waiting on the shore of the waterhole.

Yingzhao only got out of the cabin, without saying a word, and spread his wings.

The next second later, he was standing firmly on the shore of the waterhole, beside the ghost soldiers in the area.

"Heroic recruitment. The human soul general hurriedly saluted the Ying Zhao beside him respectfully.

Today's Yingzhao, although the official position has not changed, and the salary has not risen, but the power is greater.

Xiao Shizhu ordered the sea area north of Shuoyue Island to be under the jurisdiction of Yingzhao.

And Yingzhao, the handsome, has now become a real handsome. is not only the ghost who commands the most armies among the ghost generals of the Nine Shadows Kingdom, but also the largest military general in the jurisdiction.

The reason why Ying Zhao can get such a lot of trust from Xiao Shizhu is not only because of his good ability to command troops and fight, but also because Ying Zhao has always been loyal to Xiao Shizhu and the Xiao family, and he follows Xiao Shizhu with all his heart.

And he's not in the partisan fight.

Therefore, Xiao Shizhu also praised him as: the Great Wall of the Nine Secluded Kingdoms.

Yingzhao is here today to inspect his jurisdiction.

All the fortifications in this sea area are newly built, and Ying Zhao did not dare to be careless, for fear that he would betray Xiao Shizhu's trust, so he inspected very diligently, and tried not to leave any loopholes.

"General Lee. Ying Zhao exchanged a few words with him, and while walking towards the entrance of the secret passage deep in the cave with the spirits and ghosts who greeted him, he asked, "How is the local project progressing?"

The four personal guards he recruited also disembarked and followed.

As for the boat, it stopped at the edge of the pool, and the upper bulkhead slowly spread out to the left and right, like flowers blooming, revealing the inside of the cabin.

The sergeants in the cave had already begun to carry the goods that had been unloaded from it.

"Back to the general's words, the underground works have been completed, and the professionals of the ordnance supervision have come to inspect them, and they are all qualified. Walking into the underground tunnel, General Li answered Yingzhao's question: "The above-ground project has just begun, and it will take at least half a year to complete." ”。

When Ying Zhao heard this, he immediately showed a satisfied look, then bowed his head slightly, and said: "The focus is on the underground rather than the ground, as long as the underground project is completed and qualified, your defense line here will be set up." ”。

By the time they finished speaking, the two ghosts had already walked out of the secret passage and stood at the end of the dark passage, in a square stone room.

On the dome of this stone chamber, there are several luminous beads that illuminate the stone chamber.

It can be seen that on all sides, there are dark passages, and together with Yingzhao, there is no end in sight in the distance.

And every exit is hung with an open jack stone door, once there is an invasion of foreign enemies, you can put down the stone door at any time and trap the enemy here.

In addition, there are countless small stone holes on the wall, which are densely displayed on the stone wall.

Ying Zhao only glanced at it a few times, and he could see that those stone holes were the places where the traps were launched.

Even if it is an underground project, the Nine Shadows Kingdom has done it step by step.

The mechanism here is controlled by the main control room, and is controlled by wheels and messages within the walls.

Once an enemy invades, the Nine Shadows Kingdom will not just be satisfied with trapping the enemy here. Once the enemy is trapped here, the garrison of the Nine Shadows will also activate the mechanism to destroy all incoming enemies.

What the Nine Shadows Kingdom is really about arming these islands with all their might.

Not only should there be solid fortifications on the ground, but even the fortifications underground should be able to eat the enemy alive.