After a night of struggle, Xia Lin finally gave the plan and process flow diagram of the small workshop version of brown sugar to white sugar, as well as the drawings of the simple centrifuge with a wooden shaft and a simple filtration device with a filter layer in a bamboo tube.

It was about the middle of the night that Xia Lin climbed into bed, and he didn't even have the energy to meditate on a daily basis.

After waking up the next day, Xia Lin decided that he must find a way to learn the dance light technique of the illusion department, or go to the market to see if there are any more luminous candles similar to whale oil candles.

Otherwise, if you do drawing in dim light for a long time, your eyes will be destroyed sooner or later.

After using a cleaning technique to clean up his personal hygiene as usual, and hurriedly eating cheap fish soup and rice at a small restaurant near his new home, Xia Lin walked further west to the slums.

Along the way, you can see water transporters pulling flatbed trucks and civilians carrying buckets to fetch water from the banks of the river and various wells in the imperial capital.

Except for the nearby residents of the Seine River and wells, the rest of the inhabitants naturally had to rely on human and animal power to transport the daily drinking and domestic water needed by every household.

Two buckets of river water is a copper bus, a bucket of well water is a copper bus, and a flatbed truck can deliver ten buckets of water in one trip, and it can be delivered three or four times in one morning.

In this way, the water carriers seem to be extremely profitable, but these businesses are actually in the hands of the gray organizations in the imperial capital.

Those people cooperated with the inhabitants of the water source and controlled the power to fetch water, and the water carriers in horse-drawn carts could earn only five or six copper coins for a single trip.

Born in the slums, Xia Lin saw the doors of these gray organizations very clearly, and if he hadn't been tested for his mage talent, he might have become one of these people.

From a certain point of view, if these people had not organized people in the slums to transport domestic water, the lives of the residents of the imperial capital would have been affected to a certain extent.

As we drifted away from the center of the North End, the surrounding houses became more and more dilapidated, and the stone slabs covering the sewers on both sides of the road disappeared, causing the stench to continue to emanate from the sewers.

Xia Lin smelled the stench that accompanied his growth, and instinctively disgusted his heart, but he was quickly suppressed by him.

After a long stretch of constructionless blank space separating the West End from the slums, the houses on both sides of the road become shacks made of reeds and mud.

The sewers were gone, the dirt roads were so potholed that it was almost impossible to get off your feet, and the stench had grown stronger, as if the whole person was in a big dung pit.

But this is not the case.

In the slums, where there are no sewerage facilities and no toilets, the poor people in the slums have been digging many deep pits near their homes seven or eight years ago, under the guidance of doctors and the organization of gray organizations, and covered them with straw mats woven with reeds to dump the household garbage and feces they produce.

Although those straw mats could not completely isolate the stench of fermented feces and garbage, they also made the environment much better, otherwise the slums would not have been free of large-scale plagues in recent years.

Therefore, human beings will always spare no effort to survive in any situation, even if it is a slum person.

Xia Lin's appearance quickly attracted the attention of the children who were wandering around and playing in the slums, the people here did not know Xia Lin, and the children looked at each other and ran to each other, several of them pretended to accidentally bump into Xia Lin, but Xia Lin easily turned around and avoided it.

This is an old craft that has been passed down in the slums for a long time, and some fierce cubs will also use daggers to stab or even stab their targets to prevent being chased, but Xia Lin is more proficient in this knowledge than them.

Compared with the children with shallow knowledge, the adults in the slums had much wider horizons, and when they saw Xia Lin's mage robes, they fearfully beckoned the children nearby to stop messing with Xia Lin.

After all, in all the stories recited by the bards, the mysterious mages are terrifying and intelligent beings.

It wasn't until he walked into the northern block of the slum that Xia Lin was recognized, and a group of children who knew Xia Lin immediately flocked to him, and these children were the younger siblings of his childhood friends whom Xia Lin knew.

They were not afraid of Xia Lin's mage identity at all, and curiously touched Xia Lin's mage robe with dirty hands, leaving dirty handprints on it, and some of them were dishonest and wanted to take money from Xia Lin's pocket, but unfortunately Xia Lin had already prepared and didn't bring anything with him.

"You guys, although this robe is old, it is worth a few silver mars, and if it is dirty, you have to ask your mother to wash it for me!"

Xia Lin didn't have much to do with this group of bold little cubs, and threatened helplessly.

"Good! The water in the Saine is so fast, I think my mother will be able to wash this robe 'clean'! ”

A boy shouted mischievously, but his cleanliness probably meant that Xia Lin's mage robe was floated off.

"Alas! You guys......"

Xia Lin sighed helplessly, and walked towards his house surrounded by their enthusiasm.

Not far from Charlin, in front of a shack made of reeds and mud bricks, Hurley Carr was absentmindedly sitting on a stone holding a spinning machine for her mother, looking forward to the east of the road, for the arrival of the familiar figure.

"Mom, when did you say that guy Xia Lin will come back?"

I couldn't help it, Hurley Carr asked her mother uneasily.

"Hurley, Xia Lin is your brother, how can you call him that!"

The woman, with her head down and spinning vigorously, had wrinkles on her face, and a lot of white hair had grown between her withered yellow hair, and she said sternly to her daughter.

She didn't get a laundry job today, so she could only spin some fine yarn to earn the meager four copper coins, even if she added the twenty or so copper coins her husband earned, the family of three would be tight to eat tomorrow.

After all, her second son, Charin Karl, had already graduated from the Royal Academy of Magic in the Imperial Capital, and as soon as he graduated, the two silver coins he would take home every month would be gone.

As for the fact that her son has become a noble mage, Lannie Red, who is shallow, has no real feelings.

Low-level people like them only know the mystery and horror of the mage master, but they don't know what the power they have is of use.

In the past, in order to reduce the burden on his family, Xia Lin stayed at school to eat the two meals provided to the non-commissioned officers for free, and rarely went home, and only stayed at home for one night when he took back the two silver coins and paper and pen subsidies issued by the academy to the non-commissioned officers every month, and rarely talked about magic at home.

There is no such thing as winter and summer vacations in the magic academies of this world, and there is only one day off per month that you can apply for.

In the past three years, Xia Lin has spent every day in intense study and exercise, otherwise, no matter how good his mathematical talent is, it is impossible for an ordinary slum boy to become a one-ring mage in only three years.

"Charlem Carr is back! Charlem Carr is back!! ”

Suddenly, there was a faint shout from a distance, and the two people who were spinning immediately stopped their movements and listened carefully.

"Charleen Karl is back!"

The children's stumbling voices drew closer, and both the girl and the woman looked surprised as they got up and walked towards the source of the sound.

I saw that Charlem Karl was wearing a messy mage robe, and walked over helplessly surrounded by a group of children, and the houses on both sides were naturally surrounded by people.

But at this time, except for the members of the gray organizations and those engaged in shady trades, the men of the slums were working in the city, and the rest were only children and women spinning yarn at home.

After sending Xia Lin to the door, the group of children dispersed in a hurry, giving up their seats to speak to the family.

"Mother, Hurley, I'm back!"

Xia Lin didn't have anything with him, after all, he came to pick him up. However, Hurley didn't know this, and she walked around Xia Lin several times without seeing any gifts, and suddenly showed a disappointed look.

"It's good to come back, your father and eldest brother are still at the docks, waiting for me to go out and buy some food and come back!"

Lanny said with a reluctant smile, the family did not have the slightest savings, and it seemed that she had to borrow some money.

"No, Mother, you and Hurley now pack up the house.

I made some money during this time and bought a house in the North End.

We're going to move there today, so you don't have to go to the river to do laundry, and your father doesn't have to go to the dock to carry his bags! ”

Xia Lin rubbed her head in Hurley's dissatisfied gaze, looked at her sister's skinny body with some pity, raised her head and said to her mother in this life.

"What? A house in the North End?! ”

Hurley shouted in disbelief, and the women around her looked at her in shock.

There is not a single person in the slum who does not want to leave here, but they have no skills to talk about, and the money they earn every day can only barely fill the stomachs of themselves and their families, so how can they get out of here?

They didn't expect that there was really a family that was going to get out of this big mud pit today, and that family was still the person they got along with day and night.

"Room...... House? ”

Feeling the envy of the people around her mixed with jealous gazes, Lannie felt her head a little dizzy, as if the world was not real.

At this moment, she vaguely understood what it meant for her family that her son became a mage.

"Brother, then my mother and I will go and pack up our things first! By the way, is the house you bought big? Can I have my own room? ”

Seeing that her mother's reaction seemed to be a little sluggish, Hurley couldn't wait to take her mother's hand and walk into the house, not forgetting to ask as if she were going back to add.

"Don't worry! It was big and we and our parents each had our own room! ”

Xia Lin smiled, and looked at the three men in the crowd who didn't know when they appeared, and the crowd of onlookers had left an open space around these people, obviously afraid of them.

The three were members of a grey organization in the slums called the Bronze Hand, and they were all his former playmates, and if it weren't for the mage talent detected, he might be one of them now.