When the army of the Holy Dragon Empire first entered the vicinity of Karan Island, the situation looked very critical, but Chi Nan's attention was no longer on this place.

From that time on, Chi Nan had personally come to the south of the Sacred Tree Territory. Of course, not the southernmost side, after all, Chi Nan now also has to consider whether the Holy Dragon Empire will use this opportunity to attack him.

And Chi Nan himself began to form his first aerial city in another unremarkable place.

Originally, those towns that were floating in the air, after a lot of experiments, Chi Nan had collected enough data. With practice, the parameters of various structures are basically completed.

The only thing that needs to be done now is to turn the town into a city, and that's it. The plan has been made for a long time, and now the difference is just to assemble it. "It's really not as fast as a plan to change. Chi Nan said to himself.

Originally, the first city was going to be built on the sea in the north. But who would have thought that the overseas position would be so exposed. Now, an even greater conflict has broken out between the Holy Tree Territory and the Holy Dragon Empire.

Even on the mainland's side, Chi Nan is not sure that he will not be affected in any way. Looking at the fluctuation of prices within the territory to see some problems. Therefore, what we need to do now is to continue to deter the Holy Dragon Empire. At least let the Holy Dragon Empire not dare to mess around, and dare not lead the conflict to the mainland side, so the air city is the best deterrent item.

Chi Nan personally took action and directly created a huge foundation. The floating ball slab below has been constructed, and the hollow foundation made of the fiber structure has been completed, and when the time comes, it is only necessary to install some plant weapons in the middle.

There are exits in all directions, and there are a large number of Bat missiles that can be launched from them, and I believe that even in the face of a large number of flying boat attacks, there is no way to do anything about your city.

"There are a total of thirty-seven pillars, and the middle one is the main mage tower, so let's build it into nine floors first. No Golden Mage? It doesn't matter, I am. The four around are used as four seven-story mage towers, and the others are temporarily empty. ”

While planning for this, Ikenan began to make hollow pillars with a fiber structure. Although the columns themselves are hollow, the structure is extremely stiff, and the central pillars are also extremely tough, which are the main load-bearing structures.

Anyway, this city in the air doesn't need walls, so there are no walls. The outermost circle of the tallest buildings only needs to be made stronger. Anyway, they are all made of high-density fiber, and their strength is not comparable to that of ordinary city walls. These buildings are equivalent to the walls of the city.

The rough outline of the floating city was completed in just a few days. The liftoff test determined that there were no problems, and the next step was the installation of two sets of Sky Hearts, as well as the installation of a full eight large thruster groups around it.

These thrusters can allow the floating city to move relatively fast in the air.

"My lord, we haven't finished the magic array that condenses the clouds and mist, I'm afraid it's been a while. ”

Hearing the words of his mage, Chi Nan waved his hand: "It's okay, anyway, this first floating city is not used elsewhere, I want to put it on top of the trade city, and I don't need to be covered by clouds." ”

"How's the magic light cannon doing, we need a lot of magic light cannon to arm the floating city. ”

Hearing this, the old mage said a little helplessly: "My lord, the number of our mages is still too small, and the strength of the alchemists is not very strong, so is this research progress......

"Just tell me if it's done. Chi Nan's brows furrowed slightly.

"Lord Qiyu, the research is complete, and we have been able to create the most rudimentary magic light cannon. However, if you want the magic light cannon to be powerful, you need a condenser, and the condenser of the magic light cannon is polished with black spotted spar. ”

"Spotted spar, what's that?" Chi Nan heard the name for the first time.

"This black porphyllite is a special kind of ore overseas, which is only found in the records of the Kahlan family. It seems to be an ore in the depths of the sea, but it is not yet available on land. Because it has some black markings, it is called black porphyry. This black markings do not affect the spotlight effect, but rather intensify. ”

The old mage continued, "Judging from our loot, the larger the condenser, the stronger and more terrifying the elemental light that can be condensed. Theoretically, there is not even an upper limit to the power of the Magic Light Cannon. ”

Theoretically again? Chi Nan sneered, there were more theoretical things.

But then Chi Nan said: "Miria is in charge of the affairs in the sea, hasn't she been studying submarines all along, just let her find it another day." The research on the Magic Light Cannon should be completed as soon as possible. ”

Although Chi Nan said this, he still frowned a little, if the magic light cannon was gone, then his floating city would be flawed. The current weapons are either physical or too close in range to withstand the defense of a floating city. At least, the floating city that Chi Nan imagined in his own imagination was a super war fortress.

Forget it, since there is no way, then don't do it for the time being. "The surrounding levitation fortresses, just use large air cannons and bat missiles for the time being, at least self-sufficiency, even if it's a big airship. ”

Chi Nan muttered to himself as he pulled out the levitation fortress he had designed. These so-called fortresses are nothing more than a kind of architectural structure used to protect the city itself, and it doesn't matter if they are lost.

The city itself has energy pools and home mother trees, and is capable of producing various plant weapons on its own. The only pity is that the city can't carry too many weapons, this is to reduce the weight of the city.

"Sure enough, in the end, the airship formation is still needed for joint protection. Fortunately, this floating city has its own cycle, but it doesn't take a while for it to come into contact with the ground. "My own airship, it is necessary to contact the ground every once in a while, absorbing some materials from the ground to replenish itself, but this floating city is not needed.

It carries some dirt into the air and can be recycled. "During this time, I don't know if I can develop an ultra-long-range plant weapon, just like the wind cannon, the kind that doesn't need physical cannonballs. ”

Chi Nan's whimsical idea unfolded, but now was not the time to experiment, so he could only explain the task first. My own work is still to build this floating city first. The people of the Holy Dragon Empire, wait for their own deterrence.