In almost a month, the materials needed to upgrade in Treasure Bay have basically been collected, and it is now ready to be upgraded. Pen @ fun @ pavilion wWw. ｂｉｑUｇE。 ｉｎｆｏ

Zangbao Bay was originally a [town] level, with a population of nearly 30,000, a prosperity of more than 150,000, all kinds of functional buildings are complete, and the materials have been prepared, and being promoted to the [small city] level is just a matter of order, the reason why Chen Yu did not upgrade early is because once Zangbao Bay is upgraded to a small city, it will completely expose itself, and even the terrain here surrounded by mountains cannot be covered!

This is very dangerous, after all, the guards have just begun training, and their combat strength is worrying, once they expose themselves, it is difficult to resist the attack of hostile forces, and only by upgrading to a big city in the shortest possible time can they be considered safe and worry-free.

If he could directly upgrade to Hanging City, Chen Yu would rather wait a little longer, so that he would be foolproof, but unfortunately, with his current resources, well, even the money is still too little, and he can't support the cost of ascending to Hanging City at all!

Everything was ready, Chen Yu took the crystal and confirmed the [promotion]

"Boom!"

The moment Chen Yu was sure, the entire Hidden Treasure Bay kept vibrating, as if a giant beast was moving, and the momentum was very amazing! Fortunately, this movement is from the four sides of the town outwards and does not affect the residents of the city.

Despite this, it still caused panic among all the residents, who hid in their homes one after another, and of course, there were many brave people who ran to the city wall to watch the "miracle"! In fact, it's not a miracle, Magic City has always grown up like this, although they haven't seen it, but they have heard of it.

"Wow wow! You see, the walls are moving outward, it's spectacular! ”

"Yes, it's rare to see in a hundred years! I heard that after a while, this city wall will grow on its own like a crop, I don't know if it's true! ”

"If it's true, I'll find out in a while!"

Everyone gathered together and was amazed, such a scene is rare, how can you do it without feasting your eyes. Of course, they only saw the city wall moving, and Chen Yu saw more and more comprehensively through the station stone.

As far as the eye can see, the walls on all sides are moving outward, making the area of the entire town constantly expand, although slowly, but extremely firm, and even the mountains and lakes around the treasure bay are squeezed and retreated!

With the passage of time, the area of the Treasure Bay has become larger and larger, squeezing out the mountains on both sides, and now, as long as you pass by the sea, you can see the figure of the Treasure Bay, which is very conspicuous, which is why Chen Yu has always promoted the Treasure Bay!

"Boom!"

With this loud bang, the Treasure Bay finally stopped growing, and at this time its area was five times that of before, vacating a large area of flat open space, and even the underground space increased fivefold!

The town, which used to accommodate nearly 30,000 people, is now empty, and even if you cram another 50,000 people, it won't feel crowded!

In fact, the standard small city is not so big, at most there are two big original treasure bays, the reason why this is the case, one is because the foundation of the treasure bay is good, and it was built in accordance with the city specifications when it was built, plus the system was forced to upgrade, it was even better.

The second is the station stone fusion of a big city-Linhai City's station stone, making it more functional, these two together, so that the area of the treasure bay is seriously exceeded, in terms of area alone, it is now a big city!

But that's not all, the upgrades continue.

When the city wall stopped moving, it began to grow taller, as if it were a biscuit thrown into the water, and it continued to expand and expand, and before long, it was twice as wide as the original, and one and a half times taller, and from a distance, it was very spectacular, even if it was not as high as the wall of the Tifino Fortress, but it was also a big city!

"It's not a loss!" Chen Yu nodded expressionlessly, his heart kept dripping blood!

Outsiders only saw that the continuous expansion of the city wall was amazing, but they didn't see how many materials the system consumed, which was worth 100,000 gold coins, close to one-fifth of Chen Yu's wealth, and it was strange that he didn't drop so much blood in his heart at once.

Fortunately, there are many metal ingots in these materials, and the treasure bay can be produced by itself, and it costs 30,000 gold coins to buy other materials, which greatly reduces the consumption, otherwise Chen Yu is really not sure if his money is enough to upgrade to Dacheng.

Of course, spending so much is also related to Chen Yu's own ambitions, in order to make the Sky City he will build in the future stronger, of course, the deeper the foundation, the better, so he does not hesitate to spend a lot of money to buy the best materials.

When the walls stop skyrocketing, it's the turn of the Twin Towers!

The Twin Towers Castle was designated as the lord's residence, and it was only natural that it would grow with the station, and in a rumbling sound, the Twin Towers Castle grew from two to three floors, and the area also tripled!

Fortunately, the surrounding houses have been cleaned up, otherwise it would have been a bad disaster!

When the Twin Towers Castle also stopped growing, this time the promotion of Treasure Bay was over, but this was just the beginning for Chen Yu, because next, he had to promote Treasure Bay to [Mid City] in the shortest possible time, and then [Big City]!

At present, the prosperity of Treasure Bay is still enough to be promoted, the population is enough, and the materials are abundant, and the only thing missing is the functional building! For example, a series of buildings such as a second-level alchemy laboratory, a second-level smelter, a second-level altar, and a second-level weapon workshop are required.

These Chen Yu had already prepared, and as soon as he gave the order, fifteen construction teams immediately began to upgrade the functional buildings according to the previous arrangement, due to the complete materials, the architectural drawings were also [provided by Linhai City], and there was an architect who had just joined the command of a specialized architecture, so it was not too fast to complete the upgrade.

However, not all functional buildings can be quickly upgraded by prior preparation, such as the alchemy laboratory, only the drawings are not enough, and more advanced alchemy equipment is also needed! These high-level alchemy equipment are unique to Alchemy City, no matter how many gold coins there are, people don't sell them, only by accumulating a little bit by themselves, of course, if they are perfunctory, they can be upgraded successfully, but this kind of thing will not happen to Chen Yu, after all, he has so many alchemists, how can they exert their strength without high-level alchemy equipment? Especially for the construction of a hollow cone, it is not enough to have one piece of equipment.

Chen Yu also has a solution to this, that is, to use heaven!

Since the start of the War of Kings, he has gained a total of five Heavenly Favors, two points spent on upgrading the altar, and there are three points left, which is enough for him to upgrade the alchemy laboratory.

When Chen Yu used the Heavenly Grace to upgrade the laboratory, the laboratory hidden in the underground space was suddenly shrouded in a golden light, and then it completed the upgrade in the stunned eyes of many alchemists, and even the equipment inside was also upgraded.