Arcane magic circle etchant is a colorless, slightly pungent odor liquid made from gold-eating formic acid mixed with some other materials through an alchemical process.

This liquid is extremely corrosive to metals and can corrode almost all metals known on the market, including but not limited to pure gold.

But it is completely harmless to glass products.

Jiang Xilin placed a small cast-iron desk in front of the ventilation window in the living room. The tabletop was covered with a half-meter-square piece of glass, which he bought for a whole silver enamel.

At this time, he was sitting at the table, placing an eighty centimeter long, sixty centimeter wide, finger-thick steel plate bought from Laird on the glass.

Then he took out a narrow-mouthed glass tube from a cloth bag, which contained a small half tube of colorless liquid.

The etching of arcane magic circles mainly follows three steps.

The first step is to go online.

Use colored markers and a series of drawing tools to draw the blueprint of the arcane circle on the basis of the circle.

It must be clear that the foundation of the magic circle can only be metal.

The second step is etching.

Use etchant and follow the lines drawn on the base of the magic circle to etch out the prototype of the arcane magic circle.

This step is the most important and difficult part of the entire arcane array etching process. You must always pay attention to the etched lines must be even and rounded, otherwise it will affect the conduction of arcane energy.

The third step is filling.

Use arcane guidance materials to fill in the etched arcane array lines bit by bit.

In this way, an arcane magic circle is completed.

The last step is to connect the arcane energy and activate the arcane magic circle. Of course, this step does not belong to the etching of the arcane magic circle.

Jiangxi Lin took inventory of the tools and found that they were all available, so he nodded with satisfaction with a smile on his face.

Then he took out two more yellowed pieces of cloth from the cloth bag, which were the two arcane magic circle blueprints he exchanged.

What he planned to etch today were these two magic circles.

Picking up the single magnifying glass on the table, he bent over his desk and began to carefully study the two blueprints one by one.

The complexity of the blueprint far exceeded Jiang Xilin's expectations, and coupled with his lack of basic knowledge of arcane magic formations, it was extremely difficult to "read" it.

…

Hello everyone, our public account will find gold and red envelopes every day. Just follow it and you can receive it. This is the last benefit at the end of the year. Please seize the opportunity. Public account [Book Friends Base Camp]

"Is this a mental power access node? Its function may be to turn on or off the arcane magic circle?"

"This should be the arcane energy fluctuation adjustment node to ensure that the arcane energy output is continuous and stable..."

"The function of this and this should be the transformation of elements, right? Through the input of mental power here, the frequency of the mental power is adjusted and guided from here, and finally the pure arcane energy is transformed into the fire element."

"Then what is this? Is it a fluctuation amplifier that connects the arcane space with the real world?"

"What about this? I can't understand it at all."

"Gan, I can't even guess this."

…

The sky had completely darkened, and it was almost impossible to see in the room, but Jiang Xilin was still sitting in front of the ventilation window, burying his head in his desk, scratching his head and ears, and was not affected by the dim light at all.

It wasn't until eight o'clock in the evening that the landlady knocked on Jiang Xilin's door with her little daughter.

When Jiang Xilin came back to his senses, he realized that the whole room was dark, so he immediately lit the alchemy oil lamp and completely covered the small desk with burlap.

Opening the door, the landlady, wearing a cotton and linen skirt, with long flaxen hair combed into a braid on her head, was standing at the door holding her daughter holding a "textbook" in her arms.

"Brother Xilin, good evening."

The little girl has a lively and active personality. When she sees Jiang Xilin, who always feeds her delicious food, she can't help but smile.

Jiang Xilin also liked this polite little guy. After all, before he traveled through time, his daughter was only a few years older than the little guy.

He rubbed her furry little head lovingly,

"Good evening, little An'an!"

The landlady looked at the two people interacting closely with a smile on her lips.

With the faint light shining in the room, and she didn't know if it was an illusion, she noticed that the dark circles under Jiang Xilin's eyes seemed to be deeper.

"Come in, Ms. Vera."

After interacting with An An, Jiangxi Lin turned sideways and gave way.

Abel Vera smiled implicitly and raised her hand to smooth away the broken hair hanging down her face, and said thank you softly.

…

In the living room, even lighting two alchemical oil lamps could not completely dispel the darkness.

It would be great if there were white-lighting quartz rods like those from the Bright Arcane School, Jiang Xilin thought to himself.

It has been almost a month since he started teaching Smiler language, and Jiangxi Lin's recent performances all illustrate his talent in language and philology.

Abel Vera has already taught Jiang Xilin everything he can, and now all that is left is for him to practice more on his own.

How to do more exercises, of course, is to read as many books as possible.

"Mr. Xilin, do you want to read more books?"

Ms. Abel Vera, who had completed today's teaching plan, spoke with some anxiety, so much so that she couldn't help but use the honorific "you" in her address.

"Of course, books are the only thing that interests me in this world."

The only thing is money.

"Ms. Vera, do you have access to books?"

Jiangxi Lin's eyes were filled with anticipation.

Abel Vera gently pursed her thin and red lips, and nodded slightly hesitantly,

"I have three volumes of books, which were left behind by my father back then."

Three volumes...

Jiangxi Lin was a little disappointed with this amount for a while, but he didn't show it.

"Did your father only keep three volumes?"

Jiangxi Lin asked curiously.

In his senses, Abel Vera's temperament was completely different from that of ordinary civilians who were timid, timid, bullying and unwilling to make progress.

She is perseverant and decisive, and she raises a daughter by herself without complaining about the difficulty of life. This kind of responsibility is not something ordinary people can have.

Of course, the most important thing is that she is literate and knows many things that ordinary people don't know.

Abel Vera seemed to be led into a certain memory by Jiang Xilin's inquiry, her eyes were sometimes happy, sometimes sad, extremely complicated.

After a long time, she broke free from the memories and sighed slightly unconsciously,

"There are only three volumes left."

Only Jiang Xilin caught this keyword.

There are only three volumes left, instead of just three volumes, which explains a lot.

Sure enough, the landlady is a woman with a story.

Jiangxi Lin resisted the urge to dig deeper and agreed to buy the three volumes of books from the landlady.

"How about a gold shield?"

The landlady said tentatively.

Jiangxi Lin still has a gold shield, a silver enamel, and some copper buckles.

In nearly a month of living, including rent, learning Chinese characters, customizing kitchen utensils, and purchasing daily ingredients, he only spent less than five silver coins. His life was already considered extremely luxurious.

According to the exchange rate of the Kingdom's Financial Supervisory Committee, one gold shield is equal to ten silver enamels, and three volumes of books will cost him two months and nearly three months of luxurious living expenses.

Isn't it a bit too expensive?

Jiang Xilin couldn't help but frown slightly.

The landlady was also uneasy. With three volumes written on cloth, asking for a gold shield was indeed too much, but she really needed money now.

"Okay."
Chapter completed!