Liszt really didn't know much about lime and cement, to be honest, he only knew that these things were calcined, and they were very common.

But it's not clear exactly what the two are related, or what the ingredients are.

"But if I'm not mistaken, I once watched a documentary about China's construction of the Mombasa-Nairobi Railway in Africa, which mentioned the problem of cement production, because of the lack of raw materials, and finally the Chinese experts chose the local volcanic ash as one of the raw materials for cement?"

When I watched this documentary at that time, Liszt was very proud in his heart, this is a great achievement of the motherland. What I remember more deeply is the production of cement, which can be made of volcanic ash.

So.

Thinking of this, he immediately went to inspect the dragon brick factory and offered the craftsmen in charge of developing cement a new idea - let them mix lime with volcanic ash and try to see if they could make cement.

In the case of volcanic ash, there is a lot of volcanic ash on Watardo Island, but the 800-kilometer voyage is a bit long.

Coral Island is also home to a weathered, extinct volcano, and Liszt had searched for signs of magma from which ash could be excavated.

Liszt didn't need to worry about these mundane tasks, he only needed to provide a general direction.

For the rest of the day, he teased the elves and toured the territory while waiting for Ark to set up experiments and prepare magic materials for the magicians of the Magic Guild. And the officials have prepared ten large frame ships, loaded with supplies and personnel, and sent them to the Flame City.

December 10th.

Ready to go.

"Whoa, whoa!" Zyra, the thorn elf, was very reluctant for Liszt to leave.

"Settle down in the castle, don't bully the elves, and move you there when I have built the castle and plantation in my new home. ”

"You remember early. ”

"Hmm. ”

"Wow!"

Zyra let go of her hand and watched Liszt leave.

Among all the elves and elves, it is the most emotional one. I don't know if it's because Liszt's thinking is completely different from the people of this world, or if Zyra herself is different. In short, among Liszt's many strange elves, Zyra is still the most special.

Ten framed ships set sail, not counting the one that had been parked beneath the Castle of Thorns, the ship's hold sealed with the hind legs of the Emerald Dragon.

Now that the city was standing on the island of flames, he decided to take the emerald dragon's hind legs to the city and hide it in the cellar of the new castle that was about to be completed. If you care about the precious treasures of the Spirit Fruit Tree and the Lost Dragon Soul Fruit, you will feel at ease if you keep them by your side.

......

Return to the Flame City and find the Invisible Dragonbad, who has returned.

Liszt did not stop, and directly rode the little fire dragon Leo possessed by Bard, the phoenix-perched sycamore elf Aini, and the three flame dragon birds that followed, all of which were sent to the endless volcanic group.

Leo quickly transformed from his magical form into flesh and blood, and then plunged headlong into the billowing magma of the Doomsday crater.

Liszt took Aini to search for a suitable place, and finally found a volcano that was already dormant, and Aini planted his own cordyceps to his satisfaction.

The tall phoenix plane tree rises from the ground, puts the bird's nest, and the little yellow, little red, and little purple suddenly clucked and clucked around the phoenix plane tree.

"Ani, I'll let Leo come here often to rest, you can touch it freely. ”

"Liszt, you are so nice. "Ani is sincerely grateful to Liszt, who would not have been able to get close to his favorite dragon without Liszt's help.

"Help me take care of these three birds. ”

"Don't worry, Liszt, Xiao Huang, Xiao Hong, and Xiao Zi can listen to me. Ani said confidently, this is not bragging.

As early as the period of those two adult flame dragon birds, they built a nest on the phoenix plane tree and did not harm Aini, which shows Aini's ability. The current three little birds are very dependent on Ani, and apart from Leo, they are closest to Ani.

Maybe it's fate, maybe it's attracting.

"Protect yourself, my power hasn't extended here yet...... Although Leo's dragon power looms over the endless volcanic swarm, be careful. ”

"Xiao Huang, Xiao Hong, and Xiao Zi will help me fight!"

Although they are young birds, the three flame dragon birds have all learned the fire magic engraved in their bloodlines, the Flame Slash. With a flap of wings, the flames suddenly condensed into a knife, and the power was amazing. Dealing with ordinary low-level demonic beasts is a piece of cake, even against medium-level demonic beasts, it is not worthwhile.

As for high-level demonic beasts, within the scope of Leo's dragon power, there will be no high-level demonic beasts invading casually.

So Aini's safety is basically not a problem.

......

"Bud, let's go. ”

"Woohoo!"

The invisible dragon flapped its wings and quickly entered the material boundary, and then vigorously tore open the boundary and stepped into the world outside the material. The crystal white trajectory is moving, and the magic return positioning is turned on, and the natural nodes that may exist are searched while flying.

Right now.

Liszt suddenly had a flash of inspiration: "Can the effect of the demon return positioning be strengthened?"

The effect of the Douqi secret technique "Magic Eye", after fusing with the dragon, obtained a delicate dragon's eye trajectory and a graded crystal white trajectory. He just thought of a point, in addition to "Magic Eye", he also had two fighting spirit secret techniques, "Breath Decay" and "Spiral Operation".

"Breath Decay" did not play much role in the Dragon Knight stage, and it has been abandoned.

"Spiral Movement" has also not been practiced for a long time because of the poor combat assistance effect on the dragon knight.

"Spiral operation is a kind of fighting spirit operation technique, if I run it on Bud's spatial magic and search through the spiral-shaped magic radiation, will it be able to locate the feedback of the material boundary in a more subtle way?"

Anyway, just try, if you fail, you don't lose anything, and if you succeed, it's a big gain.

Soon.

The spiral operation is fused with the demonic positioning, and the radiated spatial magic fluctuates in a spiral shape, but the effect does not seem to be too obvious. In the world outside of matter, there is still no response around, which is basically the same as the previous feedback on the location of the demon.

"Did you fail......

Just as he was about to give up, suddenly, there was a special sign of fluctuation in the distance. One person, one dragon and one shock at the same time, this is to find a natural node!

However, Liszt did not control Bard to approach, but signaled Bard to stop the "Spiral Operation" and directly locked it with an ordinary demon return position.

After such a comparison, I suddenly found that the special fluctuations that I could feel could no longer be felt.

"Bard, cast a spiral and try again!"

"Woohoo!"

The spiral operation was cast, and soon, the special fluctuation was sensed by the demon return positioning again, although the fluctuation was very weak, but the positioning was very clear.

"Let's go!"

Liszt was overjoyed in his heart, he was indeed a genius, and he developed a powerful skill - he directly called this upgraded skill of demon return positioning as spiral positioning. And the birth of spiral positioning means that the value of the Douqi secret technique has returned to his field of vision.

Originally, when the Eye of Magic fused with the dragon to exert a powerful effect, he once had a great thirst for the secret technique of fighting energy.

However, the dispensability of the decay and spiral movement of the aura made him shake the Douqi Secret Technique, which seemed to be of little use to the Dragon Knight except for the special Magic Eye. Therefore, the motivation to search for the secret technique of fighting qi is gradually relaxed.

Now, the spiral movement brings the Dou Qi secret technique back into great value.

"In the future, I have to grab some Dou Qi secret techniques, slowly fuse with the dragon, and maybe develop new skills!" Thinking about the Dou Qi secret technique, he had already flown towards that natural node.