In the laboratory.

Tessa walked around the teleportation circle a few times, tilted her head and asked, "Is this the same as the one you set up in the mage tower?"

"The basic modules and underlying logic are the same, but the directionality and iteration methods are very different. The connection between the teleportation arrays is not a simple two-way rule. As you know, senior sister, iteration is not only an overlap, but also a

Alternate, but the way of alternation determines the distance between several teleportation arrays..."

Colin talked for a long time and found that the senior sister had no response. He stopped and waited for a while and asked: "Senior sister, do you understand?"

"What do you mean?" Tessa asked.

"It's actually very simple." Colin smiled and said: "It means that every time a magic circle is added to the transmission chain, the complexity of the new magic circle will be greatly increased, and the difficulty of transmitting spells will become more and more difficult."

"Oh, that's it." Tessa seemed to suddenly realize.

"Senior sister, how about I teach you? Then we can go back to see the teacher together."

The teacher doesn't want to learn because he is too powerful and is afraid of backlash, but the senior sister... is barely a mid-level person and usually doesn't like to learn, so she probably won't be able to form any powerful magic concepts.

In the past, I didn't tell Tessa about space magic because I was worried that my senior sister would worry about it, but now that it has been successful, I no longer have such worries.

"This is the first project that has been put into practical application in mechanical engineering after the idea of ​​'magic energy' was initially realized." Colin introduced: "If I had to give it a name, I would call it an automatic arrow-making machine.

As the name suggests, it is a machine that can automatically make arrows."

Colin didn't explain it carefully, not because he didn't trust Tessa, but because it was useless and only increased senior sister's worries and concerns.

"It's okay, it just breaks the history since the school was founded." Colin said modestly: "But the graduation assessment results can only rank second in history."

Tessa awkwardly changed the subject and said: "So, you have been using it to travel between the fortress and Brighton in the past six months?"

"It seems to have happened sixty years ago. The school has not announced the name of the person. There may be some hidden secret."

However, for Colin, although Cambridge's mentors such as Ebbs and Overtell have given him a lot of teaching and inspiration, in general, self-study is still the most efficient way of learning.

.

Colin stretched out his hand to touch the outer frame of the wind core collider and sighed: "Without these six months, my space magic would not have improved so fast."

After Colin finished speaking, he started to explain excitedly.

"It is located at the junction of the Western Continent and the Southern Continent. It is one of the few land passages connecting the two continents."

"Cambridge's magic pattern department is originally the best in the entire continent, and the two masters, Ebbs and Overtell, are among the best magic pattern masters." Tessa smiled and said, "But my junior brother is even more extraordinary.

I’m afraid no one can complete all the courses in half a year.”

Colin didn't speak too carefully.

"Sister, let me take you somewhere."

Going to the Western Continent was part of the plan.

"Duke Oliver has an apartment in Victor where Sofia lived when she was studying abroad. I installed a teleportation circle in the basement there," Colin explained.

"Of course, the main reason is that Xia Ya had nothing to attract the Principality of Banner before, so naturally she left it alone."

Inside the alchemy workshop.

Therefore, what attracted him most to Cambridge was the college library.

As he spoke, he walked to the map on the wall.

…

It's a pity that half a year is too short. He has only briefly read some documents and books that are of great help to him, and many of the materials are set with authority. Although he is the future star of the college, he is only a student after all. Cambu

Reggie is not part of the Tulum Magician Association, so it will not give him too many privileges in this regard. In addition, he finally rejected the other party's invitation to stay in school, so it is impossible to make any further demands.

Tessa looked at the various unfamiliar machinery and instruments, various chains and swing arms in front of her, and she was a little lost for a moment.

On the other hand, a bigger reason for asking the senior sister for help is that he has to spend a large part of his time on the Western Continent. Naturally, he often cannot find others in the fortress. The cost of teleportation is not low, and it is impossible to do it frequently.

As time goes by, someone will always need to cover for him. Tessa, who knows the existence of the teleportation array, is obviously the best candidate.

Although he was a disciple of Roman Sagan and had access to all the resources in Tulum, the gap between the southern continent and the western continent in terms of magic research was so great that his learning process eventually slowed down.

"Who is number one?" Tessa was curious.

"Yes, I forged an identity in Brighton to get admitted to Cambridge Magic Academy." Colin sighed: "I have to say that the magic research in the Western Continent far exceeds ours in Tulum, Aibu

The two great magicians, Si and Overtell, have inspired me a lot in many aspects.

"Are you eager to learn?" Although Tessa has no ambitions, the practicality of space magic also makes her a little interested.

"Ilya has something I urgently need."

Colin: "..."

Colin then continued: "In addition, the geographical location of Banner Principality is also very important to Xia Ya."

Ten minutes later.

"The resources around us are too limited. If Xia Ya wants to develop, trade with the Western Continent is an indispensable link." Colin pointed to a line added on the map and said: "This trade road was established decades ago.

It was used, but as Duke Oliver's energy gradually declined, he no longer cared about it.

…

"Have you decided to open up the original business channel?" Tessa was not stupid and immediately understood Colin's intention.

"What now?" Tessa asked.

"You haven't been back to the Mage Tower much in the past six months, but you are studying magic patterns at Cambridge College?" Tessa nodded.

"By the way, I also passed the intermediate exam by the way, but as Cohen Snape."

Only then did Tessa really see some of the tricks.

"But why did you choose to go to Ilia in the end?"

“Very interesting.”

"Simple."

"I think it's nice to ride in a carriage, and you can also see the scenery." Tessa yawned, tactfully interrupting Colin's chatter.

The rough-processed whole log enters from the mechanical head that occupies the entire length of the workshop, and is continuously divided into small pieces to finally form the thickness and length of the arrow. It is then polished and finely processed, soaked, oiled, and feathered.

Installing the arrows, a process that originally required several workers, was completed automatically in a short time right in front of Tessa.

She walked to the exit of the finished product, picked up a finished arrow, and observed it carefully.

"Every aspect is still relatively rough now, and there is no need for continuous improvement," Colin explained.

"It's already pretty good." Tessa nodded.
Chapter completed!