Princess Linda's words made Lei Changye take it to heart. He did have a plan for dealing with the Crystal Dragon Castle, as there were a lot of crystal structures on it that he had no idea what they were doing and needed to be studied. As a last resort, he even planned to make a PY deal with Henry the Cynic and learn about the role of these hedrons through him.

But Princess Linda took the initiative to ask such a sentence, which showed that she knew a little bit of the value of the spar, which saved Lei Changye a lot of effort. He spent nearly 300,000 jade talismans to fight the Crystal Dragon Demon Castle, and he had to recover something to compensate himself, otherwise it would be bad if the snowball of war was getting smaller and smaller.

"Your Royal Highness Princess, I don't know what the wonderful effect of the crystals in this Crystal Dragon Demon Castle is?" Lei Changye hurriedly asked.

"The Magic Crystal Dragon was originally a walking dragon that lived in the Beiersbron area of the Teutonic Forest of the Frankish Empire, which was the most densely populated area of the headquarters of the major magic guilds in the empire, and the magical power infiltrated the Teutonic forest, and the Beilesbroon area was the area with the highest concentration of magical buildings infiltrated by the headquarters of the major guilds. Over the course of hundreds of years, the Earthwalking Dragons here have undergone magical mutations, transforming into a Crystal Dragon with an exceptionally strong carapace and complete immunity to magical attacks. Princess Linda said.

"Oh, that's a pretty amazing thing. Lei Changye listened with interest.

"yes. The reason why these magic crystal dragons are immune to magic is because they have these magical magic crystals on their bodies. After the research of the Magic Guild, in addition to the fact that the Crystal Dragon Stone can resist all kinds of magic in its original form, if the Crystal Dragon Stone is transformed and refined, it will produce a huge amount of magical energy. Princess Linda said as she thought about it, "But it's a pity that the magicians of the major magic guilds can't devise a refining method with small losses and large benefits. ”

"Oh, there is such a thing?" Lei Changye suddenly became excited. If there is no difference in nature between the concept of magic and the concept of mana, there are many formations that can refine mana in the "Five Elements of Mozi".

"That said, the dragon crystal is still the supreme magical treasure of the Frankish Empire due to its strong physical and magic resistance. Dragonstone can be magically melted and reforged into a variety of magical treasures and equipment, so every 1 carat of Dragonstone is worth 2 livre. Does Mr. Ray know about River and Cara?" Princess Linda asked.

"Well, a little bit about it. Lei Changye couldn't hold back the shock in his heart and said lightly.

The carat is a unit of weight derived from the Great Eclipse, which at that time was not a special unit of measurement, but a fruit called the carob tree, which has the characteristic that each fruit weighs roughly equally. Ancient food produces a wide variety of gemstones, in the era when there was no balance, gems brought great measurement difficulties to people, and later people discovered the wonder of carob fruit, began to use it as a unit of measurement. Later, this measurement method was introduced to Europe and was widely recognized.

Each carat is equivalent to 0.2 grams in modern times.

The Livre was a unit of weight in ancient Francia, and the Carolingian King Pepin the Short made 240 pence with 1 livr of silver, which determined the conversion relationship between the livre and pennies, and also established the official status of the livre, that is, 1 livral was equivalent to 1 pound of silver.

According to Princess Linda, 1 carat of dragon crystal is worth 2 livres, which is about 0.2 pounds of gold.

Then there is a ton of dragon crystal in the Dragon Crystal Demon Castle, and the converted gold is one million pounds, which is equivalent to ten million thousand livres.

If the Frankish Empire's Wizards' Guild had the ability to digest dragon crystals of this magnitude, then their economic strength would far exceed Lei Changye's estimates.

Lei Changye's eyes immediately brightened. If Longjing really has such value, this trip to Europe will be hugely profitable, and it can even make Datang's economy take off further.

Far away from it, Lei Changye decided to immediately collect and recycle the Crystal Dragon Demon Castle into the Immortal Hidden Map.

In yesterday's defeat battle of the Demon Dragon Castle, his eight hundred yin generals suffered a lot of toss, but fortunately, the thunder armor talisman and the golden armor talisman on his body were protected, and they all survived the fire attack of the necromancer and maintained their combat strength. They disembarked from the gentle slope bridge in twenty camel carts sent by Lei Changye and came to the wreckage of Longjing Demon Castle.

The remains of the Crystal Dragon resembled a giant turtle crushed by a boulder, lying on the ground on all fours. Its vest is sunken, and there is a deep pit in the center that is ten feet deep. The pit was littered with various strange-shaped bone fragments that made up the White Bone Demon Castle.

The place that surrounds the remains of the Demon Crystal Dragon is full of colorful lights. It was a magic crystal with four colors on the back of the magic crystal dragon: brown, red, blue, and green.

After the earth-shattering duel between Lei Changye and Demon Dragon Castle last night, there was no grass growing within a radius of tens of miles, and these spars were not alarmed by any living beings. They still shimmer like pearls scattered on the ground, with a magical gleam.

Lei Changye controlled the Yin generals to drive the camel cart to the area around the wreckage, and began to collect the dragon spars in an orderly manner. Every time he collects a dragon crystal, he asks Yin to secretly throw it into the treasure trove of the painting box with a clever technique.

When the Yin generals had collected all the dragon spars, Lei Changye looked at the fragmented remnants of the Demon Crystal Dragon, and felt a pity for losing them, so he also collected the huge mountain-like dragon bone remains together and put them into the treasure house of the painting box.

This recovery process lasted for a whole day, and by the time Eight Hundred Yin drove twenty camel carts and fish back to the Flying Fish Lady's ship, there was not even a single slag left in the wreckage of the Dragon Crystal Demon Castle scattered all over the place.

On this day, Princess Linda stood on the upper deck, looking at Lei Changye commanding the Yin generals and the camel cart to recover the dragon crystal, and she couldn't tell where they had stored the dragon crystal, only the magic crystal keel that was as tall as a hill and thousands of pounds of dragon crystal melted into the air little by little. She was even more shocked and unfathomable by Lei Changye's mana.

In the evening, Lei Changye discussed the meritorious deeds in the meeting hall of the Wumeng Flying Fish Lady, and Wang Mang, Jiang Liyi and Zixin, who saved Princess Linda, were each rewarded with ten catties of dragon spars and twenty chips into the painting, and the other Wumeng soldiers who participated in the battle were all rewarded with the participation in the painting, and they were recorded by Mi Zhu who was a soldier.

At this reward meeting, everyone in the Wumeng was full of passion, and they all felt that there was not only a lively battle to fight if they continued to travel west, but also a rich mercenary income, which was particularly promising.

Wang Mang, Jiang Liyi, and Zi Xin were very proud of holding the dragon crystal, and they kept discussing with the greedy members of the Martial Alliance around them what they could do.

Lei Changye has countless expectations for the dragon spar, can this kind of spar that can be melted and cast be fused with the divine blade of Middle-earth to form the mountain system equipment that he has always missed?

If there is really such a manufacturing potential, then this time the 300,000 jade runes exploding the Dragon Crystal Demon Castle can be described as a big profit.

He couldn't wait to give it a try.

"Wise Mr. Lei, you defeated Henry the Cynic, and you deserve the remains of the Demon Crystal Dragon that he captured, but I wonder if you know how to smelt and refine Dragon Crystal?" Princess Linda suddenly asked as he pondered.

"I haven't thought about it yet. Lei Changye shook his head slightly.

"Mr. Ray and your warriors saved my life from Henry the Cynic, the benefactor of the Frankish Empire, and when we reach the capital of the Empire, I will personally seconded the Frankish Royal Archmage to my father to help him melt the dragon spar. Princess Linda immediately said excitedly.

"Thank you, Your Highness, Princess, but I'm very interested in the properties of dragon crystals, and I'll do some research and experimentation during my journey. Lei Changye smiled slightly.

Princess Linda was naturally kind-hearted, but Lei Changye doubted that the so-called Frankish Royal Grand Magister could give him how much he could leave after he got the dragon crystal in his hand. This kind of thing, he naturally has to rely on his own research first, even if he loses some dragon crystal in the process. Cutting-edge technology cannot be exchanged for life-saving graces, it must be held in your own hands.

"It's a pity that Henry the Cynic refuses to serve his homeland, if he can change his ways, with his magic and magic attainments, it will no longer be a pipe dream to melt and refine the magic in these dragon crystals. Princess Linda sighed with great regret.

"Oh, Henry the Cynic is still a master of magical theory?" asked Lei Changye curiously.

"He was originally the strongest apprentice magister in the Aquitaine Magic Guild, and the genius magician in Aquitaine who had the best chance of entering the Royal Academy of Magic before the age of thirty, but unfortunately hatred blinded him, and he gave up his great future to join the Dark Lords. Princess Linda sighed.

"I see. Lei Changye secretly wrote down the names of the Royal Academy of Magic and the Aquitaine Magic Guild in his heart. The appearance of these two names indicates that the Frankish Empire already has a system of magical institutions. Then it is already an indisputable fact that magic prevails on the European continent.

Magic and Taoism have the same end, both of which are the extraction and utilization of the essence of heaven and earth in the Tang Phantom World plane. The Tang Dynasty's use of Taoism formed a sect system of Taoism and martial arts, and the operation of magic in Europe formed a guild system. Lei Changye had never had the opportunity to witness the power duel between the Dao Sect and the Magic Guild. Maybe this trip to Europe will feast his eyes.

Lei Changye began to take a great interest in Henry the Synic. If Henry the Cynic is not only a learned necromancer, but also a scholar with cutting-edge magical techniques. Then, the use value of his person has increased exponentially. If you keep him firmly in your hands and let him work hard for his own good fortune, this will be a tool immortal comparable to Wu Daozi.

The corners of Lei Changye's mouth curled, and he began to think about it in his heart.