After hearing this, Princess Lionheart's eyes suddenly lit up, and she said, "Since the flight modules can be stacked, then they should be stacked more than once, right?"

"That's of course, the flight modules are almost infinitely stackable. Yaslian said proudly.

"Doesn't that mean that there is almost no upper limit to buoyancy?" said Princess Lionheart in shock.

"Of course, if there are enough of them, Sister Chen's flying modules can even be combined into a flying fortress!" Yaslian said with a smile: "You can place as many things as you want." ”

"In that case, why do you have to use a 500 mm gun, can't you go straight to 800 or even a thousand?"

"How can it be so simple?" Yaslian smiled helplessly, "An alchemy cannon like this that fires physical shells has a lot to do with the size of the caliber and the level of the material. The caliber of 500 mm is the upper limit of what silver-grade materials can withstand. If you want to expand the caliber, you must greatly increase the proportion of gold-level materials, otherwise, the barrel will not be able to withstand the huge magic backlash, and it will easily shatter or even explode. ”

"I see. Princess Lionheart suddenly realized: "Although we have robbed a lot of things in the two planes, there are a lot of silver-level magic metal materials, but we still haven't got too many gold-level magic materials. I'm afraid I won't be able to build many cannons. ”

"Exactly. Yaslian said: "We can almost make hundreds of 500 mm caliber alchemy artillery, and if it is 800 or even 1,000 mm caliber alchemy artillery, maybe a few will make them bankrupt." ”

Emperor Shi Tian said at this time, "Actually, there are too many cannons that shoot solid cannonballs, and there is no benefit, a cannonball weighs more than two tons, even if all of them are bronze-level magic metal, it is enough to make people feel distressed! If you give me a 1,000-millimeter caliber, it won't be ten tons of magic metal in one shot? How can we afford this?"

"Hehe, that's what I said. Princess Lionheart couldn't help but smile bitterly: "I thought we were quite rich, but I didn't expect that we were actually poor." It seems that there is still a long way to go!"

"Yes!" Yaslian also said, "We have a huge plane, but there is nothing in it, and we have to keep filling it with alchemy veins. But the alchemy veins above the level of silver are all precious, and they can't be bought, and God knows when we will be able to fill that plane. ”

"Hehe, if you do it at this rate. Emperor Shi Tian pouted and said, "I'm afraid it will take tens of millions of years to fill that plane." ”

"Haha, there's still a long way to go!" Princess Lionheart couldn't help but tease.

"Actually, there's no need to worry, now our collection speed is slow, because the strength and level are not enough, and after we achieve demigods or even gods, the speed of collecting alchemy veins will be faster. Yaslian said with great confidence: "If everything goes well, we may be able to achieve this goal within 100,000 years, and then we will no longer be short of resources." ”

"100,000 years!" Emperor Shi Tian pouted, "God knows if he will live until that time!"

"Sure, you can live that long in the Nether, let alone in the Divine Realm now. Princess Lionheart teased, then changed the subject: "By the way, the shells of 500 mm caliber heavy guns, what do you have to say?"

"Of course, with a caliber of 500 mm, the alchemy cannon is a gold-level treasure, and his shells, although they are only made of bronze-level materials, can definitely be called a silver-level alchemy treasure. Yaslian explained: "When it is fired, the magic array in the alchemy cannon will bless and enchant the cannonballs, and once it is hit, it will be earth-shattering. ”

"How powerful?" asked Princess Lionheart curiously.

"At the very least, it is equivalent to the gold upper position, that is, the lethality of the ninth-level spell, and this is only the explosive power generated by the cannonball itself and the barrel blessing. Yaslian continued: "And the two-ton cannonballs, which contain nearly 300 kilograms of magic crystals, will be used as the energy core of the magic array, and after the cannonball explodes, it will once again release sealed ninth-level spells, or even compound spells. ”

When the spell reaches the ninth level, it is already the limit under the legend, and if you want to go further, there are only two ways, one is to add the power of the rules and become an out-and-out legendary spell, and the other is to compound and fuse two different elemental spells together and release them at the same time, which is equivalent to releasing two ninth-level spells at the same time, and the power is naturally doubled.

It is said that there are also some extremely clever mages who can even release three-line, or even four-series compound spells, which are extremely terrifying.

And the representative work of these compound spells is the famous Hellfire Summoning Technique. He is actually a combination of three spells, one is the earth-based meteorite spell known for its power, the other is the special summoning spell, and the last one is the fire-type flame blessing spell.

Anyway, these three different types of spells, after special changes, form this three-series compound spell, which is equivalent to releasing one spell, producing three different spell effects.

The biggest benefit of this is that it greatly increases the power of the spell and saves mana consumption.

It is conceivable that when these two spells of the same level fight, one mage can only use a single spell, while the other mage can use a compound spell, and the latter, which is equal to one spell and two spells, naturally has the upper hand.

This is also the biggest reason why compound spells are so famous, basically gold-level mages are studying compound spells, and unless they have to, they rarely cast single-line spells.

Not only is it the reason for the weak power, but the most important thing is that he is embarrassed, and he can't release compound spells, which means that this mage is still a poor rookie.

However, compound spells are generally very cumbersome, difficult to release and control, and even more difficult to seal into scrolls or cannonballs.

Princess Lionheart couldn't help but show a look of admiration, and then said: "Our main purpose this time is to break the turtle shell, and the spells you have banned are best used specifically to deal with the alchemy city wall." ”

"Understood!" Yaslian nodded, and then said, "I have prepared an earth-fire dual-system compound spell to bombard the city walls. ”

"That's great!" Emperor Shi Tian immediately clapped his hands and said, "Since this is the case, let's go all out and produce it!"

"Okay." Yaslian nodded and said, "The materials in stock are enough to make a batch, and it will not affect the production of flight modules, which is to consume a lot of magic gems." Fortunately, we got 100,000 tons of magic crystals in advance, and after throwing them into the gem lake, we made a large number of magic gems for them, otherwise it would not be enough. ”

"It seems that we are still in dire need of magic metals above the silver level, right?" Emperor Shi Tian said with a frown, "In my plan, I need at least three or five hundred 500 mm heavy cannons to barely be able to use them." ”

"That can't be helped, the barrel of this cannon weighs almost fifty or sixty tons, and the worst material is also silver-level magic metal, and those unimportant cannon racks and the like, I have replaced them with more inferior magic metals. Yaslian said helplessly: "Now our inventory of silver-grade magic metal, even if we use all of them, we can only barely make up the refining work of less than 200 cannons. ”

"Oh, that's a bit of trouble!" Emperor Shi Tian shook his head a little helplessly, and then said, "It seems that you have to go to the master here for help!"

"However, Scott doesn't have a lot of high-grade magic metals in their hands, and they also have to use them to make weapons for their own high-level troops, so they shouldn't sell much to us, right?" Yaslian asked with a frown.

"How many count, let's fight the world for them, how can they do what they can, express it. Emperor Shi Tian said with a smile: "Even if they don't have so many high-grade materials, isn't the one behind them yet? The branch dean of the dignified Titan Academy still lacks silver-level metal materials, what is the difference between this and garbage in the eyes of a demigod?"

"Hehe, that's right. Yaslian smiled and nodded: "Since this is the case, then I will start producing, I must mobilize all the people to help, their steel alchemy will help me." ”

"Okay, okay, anyway, the battle on the front line is not tight, just let them all go back and help you. Emperor Shi Tian shrugged helplessly and said, "These days, your little girls are crazy, and the missiles behind them are thrown everywhere like no money, and while doing the demons, they have also damaged other people's buildings, and it seems that the Titan has already complained about it." There are even messages coming that they are white demons, who look more beautiful than demons, but their destructive power is more ruthless than that of demons!"

"Haha!" Yaslian couldn't help laughing, and then said, "I'm sorry, my lord, this is their fighting style, please don't mind!"

"I don't mind, it's not my place anyway. Emperor Shi Tian shrugged and said: "I'm afraid that the landlords here can't stand it, so I'll transfer it to you, and let me save some snacks!"

"Yes!" Yaslian nodded, immediately agreed, and then took her leave.

Immediately afterward, Princess Lionheart said, "Even with a 500mm heavy cannon, it will not be easy to take these demon castles. After all, it is a war fortress built by someone for thousands of years, and it is not an exaggeration to say that it is impregnable. ”

"So, you have two people to discuss a siege plan, and you must take these demon castles anyway and minimize the casualties. Emperor Shi Tian suddenly remembered something and said, "By the way, we can consume a little more arms, anyway, someone will reimburse this thing!"

"If that's the case, it seems that this battle can really be fought!" Princess Lionheart's eyes lit up and she said, "Why don't you try a large-scale carpet bombing?"

(End of chapter)