"Not many, Your Highness, there will only be two or three such monsters every time the Demon Moon, otherwise the Changge Fortress will face great trouble."

"Very well, you observed it very carefully," Roland ordered the hunter to stand up, "What's your name? It doesn't look like the Grayburger man."

"I have half the blood of the Mojin clan, and everyone in the town calls me the Iron Axe."

Mo Jin, the sand people in the desert southwest of the kingdom, are said to be descendants of the sand giant. Roland searched for related memories in his mind. He did not use the clan name, but the title, and obviously did not want to be related to the sand people anymore. As for why he came to this remote place from the southwest border, there is probably a series of bitter stories.

But none of those are the key points, and Bianfeng Town doesn't care about its background.

Roland clapped his hands, "That's all for today, Carter, reward each of them with ten silver wolves, and take them down."

"Thank you for your reward," the three of them said in unison.

After taking the man away, Carter Lannis turned back, "Your Highness, do you want to stay here, do you ask these?"

Roland refused to comment, "What do you think?"

"This is absolutely not possible, Your Highness!" said the knight loudly, "According to the hunter's words, it is difficult to deal with the evil beasts grown by wild boars. If you can't shoot the crossbow outside fifty steps, you have to wait for forty steps and thirty steps again. Only the elite soldiers of the fortress can do this. In addition, they are numerous and do not have a strong city wall as a support. If you rely solely on local guards to stop it, you will be afraid that more than 10% of the casualties will collapse."

"You said the same before meeting the witch. Do you not think about everything in the best way?" Roland sighed.

"This...the witch is evil, but Anna...Miss Anna doesn't seem to be like this. As your knight, I must be realistic."

"Is that true, what if I give you a wall?"

"What?" Carter suspected that he had heard it wrong.

"I'll give you a city wall, just between the foot of the north slope and the Chishui River," Roland said word by word, "Although it is not as majestic as the walls of the Gray Castle King City, it should be possible to block the alien beasts."

"Your Highness, do you know what you are talking about?" The Knight was angry and laughed. "There must be a limit for nonsense. If you don't leave then, you can only forgive me for being rude."

"There are three months left, right? I read the records of the past. Most of the first snow here comes in late February after the beginning of winter."

"Three years are not enough! Building a city wall requires a large number of workers, and the foundation is rammed with mixed earth. Every time one to two feet is filled, it must be compacted, otherwise it will be dangerous to collapse if it is piled up. This is the simplest city wall to build soil," Carter shook his head repeatedly. "The brick and stone wall is even slower. Hundreds of stonemasons need to chisel the stones into square shapes in advance and then build them one by one. Your Highness, any city wall is built like this, and there is never an exception. Letting the city rise from day to night is a story that only exists in myths and legends."

Roland signaled him not to say anything more, "I understand. You don't have to draw a conclusion so quickly. If there is no reliable wall at that time, I will evacuate to Changge Fortress with you. I don't plan to throw my life in this ghost place."

The knight knelt on one knee and said, "I will protect you to the death!"

************************

In the castle garden, Roland took a sip of bitter ale and looked at Anna who was concentrating on eating cream pastries, and her mood recovered a lot.

He has decided to block the evil beasts in the border town - he can't even defend the base camp, so he still talks about farming. If he wants to build a city wall connecting the North Slope and the Chishui River within three months, he must adopt reasonable solutions and cross-age technology.

Roland was not a sudden idea. He had checked the surrounding area of ​​Bianfeng Town (although it was not in person), and there was still a clear picture in his memory - the foot of the Beipo Mountain and Chishui River are only more than 600 meters closest to it, which is simply a natural pass. Due to the years of mining, the Beipo Mining Cave is surrounded by rock gravel mined from the cave.

The sections of these gravels are grayish white and have rich calcium carbonate content. They can be used as limestone after grinding. With limestone, it is equivalent to cement.

That's right, this hydraulic material that has changed the history of human construction has a wide range of raw materials, simple preparation, and one of the powerful real farming tools.

Roland estimated in his mind that he had no idea about creating concrete. It was not that he could not do it technically, but that the amount of cement needed to be consumed was too large. He was not sure that he would calcin out so much cement powder in three months. In addition, the concrete had poor toughness and needed to be used with steel bars to become a complete body, so it was obviously not realistic to make a concrete wall.

To maximize the saving of cement and to use existing materials, the most appropriate choice is to use the stone wall.

The so-called matte stone is an unmatched stone that looks natural when it was just mined. Such stones cannot be built directly because of irregular edges and corners. They need to be processed into bricks by stones before they can be used. The matte stone walls are made of cement as adhesive. No matter how strange the shape is, they can be piled up. The gaps between the stones are filled with cement, which saves cement and does not pick materials.

The general direction has been decided like this, but when it comes to actual implementation, I am afraid I have to do it myself. Roland thought that whether it is calcined cement or stone wall building, it is all brand new. Apart from himself, no one has seen these things, and no one knows how to do it. I am afraid I will be busy in the next three months.

"Look."

Anna's crisp voice came from behind.

Roland turned his head and saw a small cluster of flames appearing quietly in her palm. There was no wind around, but the flames were rising and falling, as if nodding to her. She shook her fingers, and the flames slowly moved towards the fingertips like a toddler. Finally, it stayed at the top of the index finger and calmed down.

"You did it."

Roland exclaimed in her heart in an incredible scene. This is not a trick of magic, nor a chemical trick, but a real supernatural force. But this is not the most attractive thing to Roland - what is more dazzling than the flame is Anna's expression.

She stared at her fingertips attentively, and the clear eyes of the lake water reflected the leaping flames, like the sealed elf in the sapphire. The traces left by the prison torture on her have faded away. Although she still rarely smiled, her face was no longer lifeless. A little sweat oozed out of the tip of the girl's small nose, and her white and rosy cheeks were full of vitality, which made people feel happy even if they looked.

"What’s wrong with you?"

"Ah... it's okay," Roland then noticed that he had been staring at her for too long. He looked away and coughed twice, "Then try to use it to burn iron blocks."

During these days, in addition to eating and sleeping, she would practice repeatedly in the shed. The hard work made Roland ashamed - he had never worked so hard even in the college entrance examination.
Chapter completed!