Saying goodbye to the baron, Lawson did not go to the glass shop, he immediately turned around and hurried back to the small courtyard where he was renting.

When he arrived at the yard, Anne also came back, unlike Lawson, who was empty-handed, Anne carried back a large bamboo basket, which was full of moldy food, including oranges, melons, sweet potatoes, corn, and wheat, and the surface was covered with blue-green mold spots, exuding the peculiar smell of mold.

Seeing Rosen, Anne smiled and said: "The fruit merchant in the town bought it, and a basket is more than 30 catties, and it only cost more than 10 copper finch, which is not cheap." ”

Rosen nodded with satisfaction: "Very good, almost enough, let's pile it in the corner first." ”

After Anne put the fruit away, Rosen immediately said, "Anne, I have found something very unpleasant. ”

Anne was taken aback: "Huh? ”

Rosen explained, "I just went out and ran into Baron Draco, the mayor of the town, and he told me that Dias had given him a magic mirror. ”

When Anne heard this, her expression immediately became serious: "There is actually a connection between Dias and the baron?" ”

Rosen whispered, "It's not that simple, I also saw that the baron has a lot of red spots on his arms." I felt it carefully, and it was the same thing as Mary and Alice. ”

"Hiss~~" Anne took a breath of cold air, and she immediately understood Rosen's concerns: "You mean, the baron knows what Dias is doing in the grassy slope village, and it is even possible that the baron acquiesced in what he did?" ”

Rosen immediately nodded: "This is the worst-case scenario. But my father knew the Baron, and I had met him a few times before. The baron was rough, generous, and couldn't hide his thoughts. In addition to being lustful, there are no bad deeds. If there was really a conspiracy, his expression would definitely not be so natural when he mentioned Caopo Village. ”

Anne nodded in agreement, "You're right, Draco is a martial artist, and he has some honor, so he shouldn't be so vicious." Most likely, Dias knew that the Baron was ill, so he stopped in the village of Caopo to find a cure for the disease. Because the village of grassy slope was the domain of the baron, where he could be sheltered by the baron. And the baron, because of his illness, also very much hopes that Dias can succeed. ”

"You're right." Rosen concluded: "The only thing that is certain now is that there is a strong connection between the Baron and Dias, and that Dias is likely to be hostile to us, and that he must have known that we have taken Mary and Little Alice with us, and once he has determined the location of Mary and Alice, he will definitely denounce us to the Baron, and will even use the matter to make a big fuss and cause panic among the townspeople." When the time comes, not only Mary and Little Alice, but also our own lives will be in danger! ”

"So what now? Do you want me to get Dias! Anne took the hilt of her sword in her hand again.

Rosen waved his hand again and again: "It's not here yet." ”

He paced a few steps left and right, his thoughts becoming clearer and clearer, and after a few minutes, he turned to look at Anne: "It's too dangerous outside the town, Mary and little Alice must stay in the town." ”

Anne asked, "Do you want to move the place?" I know of an abandoned wooden house in the north of the city. The original owner of the wooden house was a hunter, and while hunting outside the town, he encountered the misfortune of encountering a griffin. After Orion's death, the mistress of the wooden house committed suicide, and since then, the legend of ghosts has often been heard in the wooden house, and no one dares to live in it again. ”

"Is there a ghost in the house?" Lawson asked, there really is such a thing as ghosts in the other world, and he often deals with ghosts in the game.

"There used to be, but I quietly removed it. The cottage is now safe, and every time I pass through the small town of Sunderland, I spend the night in the cabin, which is equivalent to a free hostel. ”

"Well, that's not bad, it could be an alternative. But now, the cellar in the courtyard is private enough, and Anne and little Alice's illness can't stand the toss, and my research also needs their cooperation, so I don't need to transfer for the time being. ”

Anne nodded in agreement, "Is there anything you need me to do?" ”

Rosen had already thought about it: "Dias wants to tell the baron, either by himself or by sending a messenger." I want you to go to the gate of the Baron's Court and find a secret place to hide, and as soon as you find that the situation has changed, you will immediately rush back to transfer Sister Mary and Little Alice. ”

Anne nodded solemnly: "I see." ”

After speaking, she turned around and was about to leave, but was stopped by Rosen: "Don't worry, don't worry, at this time, the entrance and exit of the town have been closed, and Dias's messenger can't come in, so let's have a good night's rest first, and then talk about it tomorrow." ”

Anne smiled sweetly: "Don't worry, I'm fine, I'm in good spirits." Besides, it's always a good idea to be careful. ”

With that, she walked out of the yard.

Lawson couldn't help it, he originally wanted to go to the glass shop, but he hadn't rested much since the early hours of the morning, and after thinking about it, he decided to recuperate himself and talk about it.

After turning back to his room, having eaten and drunk, and washed up, he lay down on the bed.

He was really tired, and as soon as his body stuck to the bed, he fell into a deep sleep in just three minutes.

After a dreamless night, Lawson woke up early the next morning, feeling unusually energetic. He ate a large meatloaf for breakfast, then went to the cellar with a freshly baked meatloaf and water.

In the cellar, Sister Mary and Little Alice were also awake and chatting.

Seeing Rosen, Sister Mary hurriedly stood up and called out to be an adult, while little Alice shouted crisply, "Good morning, brother." ”

When Lawson looked over, he found that little Alice's eyes were much brighter than yesterday, and her face was more rosy. Sister Mary's mental state is also obviously much better than yesterday.

It seems that a large part of the reason for the bad condition of the two is because of the poor living environment, and now the living environment has improved, the body has been recuperated, and the condition has immediately improved a lot.

This situation relieved Rosen's heart that he had been carrying a lot, he stepped forward, touched little Alice's face, chatted with Mary a few more words, asked about her physical condition, and then put down the water and food, and left the cellar with confidence.

As soon as he left the cellar, Lawson walked out of the yard, turned right and went to Savi's glass shop.

As soon as he entered, Rosen saw the fat man Savi sitting behind the counter sighing.

Rosen walked over and asked with a smile, "Savi, you seem to have something on your mind." ”

Savi looked up at Lawson and realized that he didn't know him, so he asked, "Are you?" ”

"Rosen. Laplace, alchemist, the baron has sent me to assist you in repairing the magic mirror. As he spoke, Rosen took out a ruby ring and placed it on the counter: "This is a token of the baron." ”

After hearing the three words alchemist, Savi's eyes lit up slightly, and he looked up at Rosen carefully, only to see a fourteen or fifteen-year-old boy, and his face suddenly showed disappointment: "At your age, you are only an alchemy apprentice at most, how can you cultivate Master Parkland's magic mirror?" ”

Lawson smiled and asked instead of answering, "Do you know why this glass lens of yours is useless?" ”

Savi shook his head blankly: "I don't know, I made a glass mold exactly in the shape of the broken glass. In order to avoid bubbles, I specially got a blower to increase the temperature of the furnace, and doubled the melting time. Even if there are some bubbles, they will never be unusable at all, right? ”

He seemed to have found someone to talk to, and he spat out all the doubts in his head.

Rosen listened patiently, and when he was finished, he said, "Can I take a look at your glass studio?" ”

Savi still doesn't believe it: "You really have a way?" ”

"At least it will help you get rid of the bubbles in the glass." As he spoke, Lawson raised his hand and used elemental manipulation to form a faint whirlwind around his palm.

Savi's eyes lit up: "Then you come with me." ”

The glass shop has a backyard and a large wooden house with three doors, and the leftmost wooden house door is open, and there is a large stove in it, and above the stove is a clay crucible, the crucible is open on the side, and you can see that some solidified glass juice remains in it.

On the left side of the door against the wall there are three clay jars, which contain quartz, limestone, and soda ash, all of which are raw materials for making ordinary glass, and on the ground on the right side of the door are placed several molds, and on the wall, there is also a hollow iron pipe more than two meters long.

After a few glances, Rosen saw Savi's lens mold. He walked up, took the mold and looked at it carefully, and he had already roughly guessed the reason, he turned to look at Savi and asked, "You poured the glass juice directly into the mold and poured it?" ”

"That's right. Magic mirror lenses are solid and cannot be blown and can only be cast. Let me tell you, pouring glass is not a simple matter, and if you don't do some special treatment, the lens will crack with a 'bang' as soon as it cools down. For this step, I tried more than 30 times before I succeeded. ”

Savi was proud of his perseverance.

Rosen couldn't help but laugh: "Isn't it annealing?" Also special treatment. ”

Annealing relieves internal stresses, as everyone who studies the physics of materials knows.

When Savi heard this, his mouth was half-open and stunned for a while, and his face was completely proud: "It seems that you really know how to do it, so can you tell me why the new lenses I made according to the mold made by the broken lenses can't be used?" ”

"There are two reasons for this, first, the lens is deformed during annealing. Second, your mold is not accurate. ”

"Ah, I know the transformation, but the transformation is very small, does it matter?" Savi didn't understand.

Rosen asked, "Have you studied geometric optics?" ”

"How many ...... Small table...... How much to learn? Savi looked dazed.

Come on, he certainly didn't learn.

In this case, Lawson did not explain the principle, and said, "This mold is useless, you bring the baron's magic mirror." ”

Savi immediately complied.

After getting the magic mirror, Rosen casually looked at it and found that it was a Galileo-style telescope, the eyepiece was a concave lens, the objective lens was a convex lens, and the broken lens was a convex lens.

Looking at the eyepiece again, this lens is better, but it is not much better, there are no bubbles in the glass, but the color of the lens is yellow and dark, and when you see the world through this lens, the field of vision is obviously dark.

It also has the biggest problem that the lens is too thick, because the refractive index of light of various colors is different in the glass, so what you see through this lens has a very obvious colored burr on the edge, which is very uncomfortable to look at.

This is chromatic aberration, a common problem with refracting telescopes.

Rosen is sure that in a world where telescopes have just been invented, there is absolutely no technology to eliminate chromatic aberration, and no one knows how to eliminate chromatic aberration. But Lawson knew that by compounding lenses with different refractive indices, chromatic aberration could be eliminated to a large extent.

Of course, this process also requires some calculations.

'Shall I give the Baron a normal telescope, or do I get a high-end one?' Lawson pondered in his mind, and after a few seconds, he made a decision: "Forget it, it is too cumbersome to get compound lenses, and it will take time to analyze the optical path." Let's get him a normal one first. Good stuff is left behind to make money! ”

Thinking so, as soon as Rosen suddenly raised his hand, he smashed the lens of the magic mirror, and the objective lens eyepiece was smashed, leaving no one behind, and the smash was very crisp and neat.

Savi was stunned, and on his white and chubby cheeks, the flesh trembled: "You...... What are you doing? ”

Lawson said calmly: "Melt some glass juice and make it again." ”

Savi swallowed his saliva with a 'grunt': "Are you sure you can do it?" Both lenses were shattered. First of all, if the baron is to blame, I will tell the truth. ”

Rosen smiled: "Of course you can't, but I can." ”