In fact, this value is far from comparable to the true value of this drawing.

If it is in the middle or late stage, it is bound to be able to be sold for hundreds of thousands, or even millions of soul stones.

However, Tang Xiaofan did not want to keep it as a treasure and put it up for auction in the middle or later stage.

Those things will really rot in your hands, and as far as the current price is concerned, more than 5,800 soul stones are already a sky-high price.

Except for Tang Xiaofan, no other castle lord could come up with so many soul stones on his own, and they all had to borrow money from everywhere.

Many undead castle lords are borrowing soul stones everywhere, with the purpose of taking a picture of this rare military building blueprint.

"The soul stones in the early stage are the most valuable!"

"The value of soul stones will inevitably plummet in the later stages!"

Tang Xiaofan couldn't help but smile as he looked at the bidding price which was still increasing.

"Looks like I can start looking forward to the fifth-level farmer factory!"

Compared with the upgrade of the farmer's factory, a mere mid-level military building blueprint is not important at all.

This is the fundamental reason why Tang Xiaofan sold the architectural drawings of the Skeleton Warrior species.

"The auction ends in about four hours!"

"I hope that by then, the bidding price will exceed 7,000 soul stones!"

While talking to himself, Tang Xiaofan turned his head and looked at the auction of the space teleportation magic circle blueprint. The bidding price of this blueprint has now reached about one thousand two hundred soul stones.

Obviously, those who know the goods can see that there are still quite a few castle lords who attach strategic significance to the space teleportation magic array.

“There’s no rush to raise the price!”

"The bidding for this drawing will last for one day and will not end until around eight o'clock in the evening."

"I'll raise the price then."

Now that the soul stone reserves are abundant, Tang Xiaofan is determined to obtain the blueprint of the space teleportation magic circle.

When he has a chance to get two more of these blueprints, he can build a teleportation magic circle to connect the Black Technology Castle and the little loli's Black Iron Dwarf Castle.

At that time, the warrior team will be able to directly charge into the underground world, and his castle's influence will also extend and expand into that chaotic dark world.

This is of great strategic significance to Tang Xiaofan's castle strength and his dominance in the Continent of Gods and Demons.

Then, Tang Xiaofan looked at the food again. It was the same as usual. No one was interested in buying hundreds of thousands of units of ordinary food.

Special foods were gradually exchanged by castle lords, especially commander-level food and lord-level food, which sold the best.

I wandered around the trading area again.

I didn't find anything that caught my eye.

Tang Xiaofan turned off the trading channel and went straight to the castle yard.

Now, he had to arrange for the reception of the two newly conquered castle resource points! After all, the transportation problem had been solved, and it was time to start large-scale resource collection!

For Tang Xiaofan, this was planned long ago.

At this moment, the production workshops of the two vehicles were roaring with various machines running at high speed.

The first place Tang Xiaofan came to was the heavy machinery factory, where light armored transport vehicles were being produced . A row of Vulture light armored trucks had been waiting for Tang Xiaofan to come and inspect them.

Next to the convoy was a group of soldiers from the First Regiment, who were there as a guard.

The drivers of the team are all female farmers.

These female warriors were just as good as the male farmers and they quickly mastered the driving skills.

When they saw Tang Xiaofan in the cockpit, they waved to show their respect for him. Because the body of the Condor was very high and it was inconvenient to get in and out, Tang Xiaofan had told them in advance not to get out of the car.

At the same time, a group of large pelican airships were hovering in the sky. Although the carrying capacity of these large pelicans was also good, it was still not as high as that of the condors on the ground.

Therefore, as a means of transportation, the purpose of our mission this time is to build relevant airports and waterways at each resource point.

With Jarvis's arrangement and coordination,

Ensure the safety and productivity of all farmers.

As Tang Xiaofan nodded, the first group of convoys set off and the big pelican also flew away.

The huge city gate opened, and a huge convoy filed out.

In the sky followed a team of soldiers and a regiment of iron warriors as escort.

After all, this is still a forest. Although many wild monsters died in the battle against the beast tide,

But the thing the forest lacks the least is monsters.

They could show up at any time.

Although there are heavy machine guns on the convoy, it is still more reassuring to rely on the protection of the Mark II armor.

As for the Great Pelican's formation, no escort was arranged because of the presence of the four watchtowers.

Now there are no blind spots within the Black Technology Castle's sphere of influence.

In addition, the Great Pelicans have a good flying speed, so the risks can be avoided in advance through Jarvis' arrangements.

Watching the convoy directly push down trees more than ten meters high and open up a wide passage in the dense forest,

Tang Xiaofan couldn't help but feel that he had never cared much about the environment.

Fortunately, this world is big enough, and I believe that my destructive power is insignificant.

The two factories occupied a large amount of land, which had been flattened and surrounded by walls.

Although if the next beast tide comes, such a large defense range may be a bit dangerous,

However, in Jarvis' plan, the defense force will be equipped with additional artillery, which will greatly enhance the defense capability.

The model of the artillery is the seated 1130 close-in defense gun.

This is an 11-barrel 30mm rotary rapid-fire cannon close-in defense weapon system equipped with 11 gun barrels and an unlimited ammunition magazine.

Capable of locking onto more than 40 targets at a time.

The maximum fire rate is 11,000 rounds per minute, or about 166 rounds per second.

This automatic artillery is mounted on an automatic turret base and is equipped with a tracking system, firing 165mm caliber machine gun shells.

The sample gun has been made and is located outside the factory, because this area will be cleared to leave a firing range, which is perfect for testing the gun.

Under the guidance of the craftsmen from the weapons workshop, Tang Xiaofan climbed up a section of the city wall.

The prototype gun was installed on a protrusion on the city wall.

Facing the dense forest.

Seeing Tang Xiaofan coming, the weapon craftsman waved his hand hastily. There was a sound of mechanical gears turning, and then a flash of fire shot out from the muzzle.

A red flame formed at the muzzle.

The trees in the distance turned directly into fog.

This was true of all the trees hit by the shells.

At least some leaves fell, raising a cloud of dust.

"Nice power. How's the automatic detection device?"

"My Lord, it has been completed. It has been transformed using the visual components of the Mark II Battle Armor. Please take a look."

Tang Xiaofan took a look and saw something similar to a telescope placed on the wall, wrapped in an iron shell. Tang Xiaofan asked Jarvis, "Jarvis, what is the friend-or-foe identification rate of this monitor?"

"Sir, this is actually one of my information collectors. The recognition rate is 100%. There will definitely be no misjudgment."

"Oh, your computing ability has improved so much?"