After everyone was released, Emperor Shi Tian could only concentrate on sorting out internal affairs.

Danmaku Ji is in charge of production in the Jiangshan Sheji space, while Emperor Shi Tian is responsible for communicating with her and monitoring the local mining situation.

The demon army is now defeated, and they have even lost their command, so they can only fight on their own, and they are all cowering in the castle to survive, and there is no longer any threat.

Therefore, the mine at this time can be said to be extremely safe.

In this case, Emperor Shakti simply dismissed more than ninety percent of the security work and turned all the soldiers into temporary miners.

Moreover, Emperor Shi Tian also deliberately removed some dwarves and mages used by flying troops to transport prospecting, striving to find more and more advanced mineral deposits.

Now that the battle is in full swing, although Emperor Shi Tian can't draw too many troops to mine, he can find out the mine first, and when the battle is over, he will even temporarily transfer most of the troops to miners, and work for ten years first.

Anyway, before leaving, try to dig up as many high-grade minerals as possible.

Of course, Emperor Shitian's current mining capacity is also very impressive, although there are not too many troops involved, but he still has a large number of wrestlers to use.

The wrestlers made by sprinkling beans into soldiers are at least comparable to adult men in terms of strength, and they are fully qualified for mining work.

Emperor Shi Tian is also out of the way now, and as many spirit beans are produced in the rear, as many spirit beans are transported, all of which are used for mining, and even the battle on the front line is a little delayed.

In addition, in order to dig more and more convenient minerals, Emperor Shi Tian also built smelters and teleportation arrays around large minerals.

The smelter can refine the ore into metal ingots, which greatly reduces the amount of transportation.

The teleportation array can speed up the transportation of metal, but it will only increase the cost.

However, thanks to the particularity of this plane, the consumption of space teleportation is very small, so the cost does not increase much.

Moreover, when the mine was relatively close to the castle, Emperor Shi would still rely on normal transport teams to transport metal ingots.

Only those mines that are very, very far away will build teleportation arrays.

Of course, Emperor Shi Tian is still desperately producing the Void Brood Dragon, and it can even be said that he has done his best, even if he delays the construction of the Flying Castle.

Moreover, after the end of the space blockade, Emperor Shi Tian immediately collected high-grade metals from various channels.

Some of them spend favors from the Titan Protoss, some simply buy them from the black market, and sometimes even use soul crystals.

In this case, Emperor Shi Tian reaped a lot of money, and the mountains of high-grade metal were transported back, and then almost all of them were used to produce the Void Brood Dragon.

It's a pity that the Void Brood Dragon is a bit large, and most of its weight of hundreds of tons is made of high-grade metals.

Therefore, although Emperor Shi Tian desperately collected high-grade metals, the Void Brood Dragons that were finally produced were only a few hundred.

Moreover, after all, the production of high-grade metals was limited, and they were quickly collected by Emperor Shitian, which caused the production of the Void Brood Dragon to begin to decline sharply.

Only by relying on the output of each mine can we ensure the output of dozens of pieces per month.

However, the Void Brood Dragon is worthy of being a high-level class carefully created by Emperor Shi Tian, and after being produced in large quantities, it has indeed brought a huge surprise to Emperor Shi Tian.

Almost every day, a large number of Crazy Iron Dogs, Iron Wolves, Dog-headed Aluminum Bats, and even the Metamagnetic Two-Headed Dragon are teleported back.

As a result, the troops in the hands of Emperor Shi Tian began to grow gradually, and this growth trend is still increasing.

Emperor Shi Tian believed that when the number of Void Brood Dragons exceeded 10,000, their production efficiency would completely surpass that of the Dragon Breeding Pond.

At that time, the number of troops under the command of Emperor Shi Tian will soar rapidly, and it will not take ten years to accumulate an unusually large army.

Moreover, Emperor Shi Tian now has a new discovery, which can ensure that the newly produced troops can also quickly have the strong combat effectiveness of the old troops.

This new discovery is the inheritance of the treasure.

For example, the Iron Wolf Warrior, his main combat power is on a flying sword.

In past battles, many Iron Warrior Wolves have been killed, but the Natal Flying Sword has been retained.

As a result, the newly born Crazy Iron Dog can actually use special magic techniques to refine these flying swords and make them his own natal flying swords.

Once the sacrifice is successful, Crazy Iron Dog can be reborn and promoted to Iron Wolf in one fell swoop, and it is also a Steel Wolf with a powerful flying sword.

In this way, the growth time of the troops can be greatly reduced, and it is easy to cultivate a group of powerful elite troops.

In addition to the Iron Wolf, other classes with natal magic weapons can also inherit in this way.

Especially for the earth cultivators, the earth spirit beads they left behind after they died in battle, and handed them over to the earth monks who had just started cultivating, could instantly increase the strength of this recruit several times, and the speed of improvement was also very fast, and it wouldn't take long to be similar to the old master of the earth spirit beads.

So now Emperor Shi Tian has stipulated a new military rule, no matter under any circumstances, you can't give up the natal magic weapon of your comrades-in-arms, even if you don't want the corpses of your comrades-in-arms, you have to bring back the natal magic weapon.

Moreover, Emperor Shi Tian also began to design a new natal magic weapon for the Void Brood Dragon to increase the strength of this class.

Considering that the Void Brood Dragon is not a pure combat class, its powerful auxiliary ability, whether it is spatial teleportation or incubation troops, is inseparable from spatial ability.

So Emperor Shi Tian finally chose a treasure called the Void Tower.

This particular artifact has many functions, but in general it is to manipulate space.

The first is spatial confinement, or spatial reinforcement, which is a bit similar to the space anchor spell anyway, which can make the space around the protection extremely strong, making it difficult to cast spatial teleportation, and other spatial spells.

The second is to strengthen the space transmission capability. Although the space around the Void Tower will become extremely strong and unable to teleport, the space inside the Void Tower has become fragile and easier to teleport.

It's just that the space inside the Void Tower is controlled by it, and you can teleport away and teleport at any time, but outsiders don't want to use this channel to teleport in space.

Therefore, with this Void Tower, the Void Brood Dragon can teleport longer distances and teleport more supplies.

Last but not least, the Void Tower can enhance the owner's spatial manipulation ability, which means that the huge hatching nest formed by the Void Brood Dragon with space folding can be greatly expanded.

Originally, the Void Brood Dragon could only hatch 10,000 units at the same time, but with the Void Tower, it can hatch more than 20,000 units at the same time.

The exact extent of the increase also depends on the quality of the Void Tower.

Emperor Shi Tian also let it out this time, took out a legendary treasure of the space system, refined it into a void tower, and used it as a mother treasure.

This space treasure was the hidden treasure of the 00,000 gold-level great demons at that time, it was carried by a legendary demon, and it died tragically in the battle, and finally fell into the hands of Emperor Shi Tian when the body was collected.

Emperor Shi Tian felt that this thing was a bit of a chicken rib at that time, although it could create a spatial gap to hide the army, but it could not move.

This means that this treasure can only be used by troops for ambushes, but cannot be used for attacks.

And he doesn't have any other functions, which is equivalent to a very single space treasure for users.

Emperor Shi Tian immediately lost interest in it, but this thing can be of great use at a critical moment, so it is not easy to sell it at will, so it can only be thrown in the warehouse as chicken ribs.

And now to make a Void Tower for the Void Brood Dragon, Emperor Shi Tian remembered this thing for the first time.

The Void Tower refined with it is a standard four-sided tower, symbolizing the meaning of stable space.

It's usually only the size of a palm, it's small and exquisite, and it's cute to look at.

But after the sacrifice, this void tower can become a hundred zhang square, suppressing the surrounding space for hundreds of miles, and its power is also high in the legendary treasure.

And after Emperor Shi Tian finished refining, he regarded it as a mother treasure, and then asked other Void Mother Nest Dragons to extract a wisp of origin breath from it and use it to refine the sub-treasure of the Void Tower.

Of course, the Void Brood Dragon can't be so particular, and can only be refined with the simplest Void Stone, but because the quantity used is relatively large, and the refining techniques are relatively high-end, the final refining of the Void Tower is all at the gold level, and the power is extraordinary.

Anyway, with the Void Tower, the abilities of the Void Brood Dragon have more than doubled.

Not only can it greatly increase its efficiency during daily production, but even if it goes to the battlefield in the future, it can also allow the Void Brood Dragon to teleport more troops faster, thus quickly establishing a victory.

And just when Emperor Shi Tian was busy with these idle things, the barrage Ji suddenly contacted Emperor Shi Tian.

After the two met through the light curtain, the barrage Ji said straight to the point: "Just now, I met with an extremely mysterious customer through the black market, and after completing the transaction, the other party gave me a mirror, saying that he wanted to hand it over to you." ”

"Huh?" Emperor Shi Tian frowned and said, "What do you mean?

"Probably not. Danmaku Ji said: "This mirror has been thoroughly examined, and there is nothing dangerous, according to the other party, it is just a tool for communication, and it seems that someone wants to have a private and secret meeting with you." ”

"Huh?" When Emperor Shi Tian heard this, he immediately frowned and said, "If the other party can find you, it means that you can use the public network of the academy to contact, but they did not use this line to contact us, but chose such a broken route, which shows that there is a big problem." ”

"It's just that it's unsightly?" barrage Ji shrugged and said: "Of course, it is also possible to assassinate you, it is said that there are many curses, and you can teleport in the air, so you have to guard against it." ”