Exchange

"Copper ore? Why not just exchange it for pure copper? Is pure copper very expensive?"

"Hmm... Pure copper is a metal material, and its price is 50 times higher! Taking the copper ore back directly and smelting it will yield the most metal and have high variability."

Moreover, most of our copper is currently used for casting city walls, building covert defenses, or expanding the Holy City.

The city wall only needs a 50% copper content to keep out 'life outside the city,' there's no need to use pure copper... On the contrary, adding other metals or special stones to the 50% copper content can significantly increase the wall's hardness and toughness.

"Smelting technology... sounds very advanced."

"There are specialized alchemy teams in the Holy City, so smelting metals is not a difficult task."

"Alchemy..." This was the second time Han Dong had heard this term. If he returned to school this time, Mr. Black and White didn't have any special arrangements for him this semester, Han Dong planned to do some side business during his free time.

After all, Han Dong is different from ordinary Knight-Errant.

In addition to basic needs like food, clothing, shelter, and transportation, extra financial resources are required to support this 'special mind'.

Of course, Han Dong himself is also very interested in the special science of this world.

It's nice to relax and pursue hobbies after running dungeons and killing monsters.

"Is this the difference in benefits resulting from different levels of difficulty?"

After exchanging the brass, I have thirty points left to redeem... Let me see what I can get.

In addition, Han Dong had another question.

That is, would it be feasible to use all the points to exchange for brass and then use it directly as currency in the Holy City? That's First Year of money.

Cas immediately rejected it.

"Brass and Copper Coin are different."

The value of Copper Coin far exceeds their copper content. As a form of circulating currency, they are manufactured and issued by the Holy City Treasury, which is under the jurisdiction of the council.

Copper is of great significance to the Holy City.

Using Copper Coin as a high-level circulating currency was also a way to indirectly remind the public of the importance of brass... In fact, not much brass was used in the production of Copper Coin.

The copper content of a Copper Coin is controlled at around 30%, and the total weight of the Copper Coin is not high.

Its monetary value was primarily realized through a special manufacturing process and the imprinting of unforgeable seals on both sides of the Copper Coin.

"I see!" Han Dong nodded.

Cas continued, "Besides, even if we bring back brass and exchange it for a lot of money... the items provided by the [Trading Center] are limited."

In the Destiny Space, points can be exchanged for anything.

You can exchange for anything as long as you have enough points.

Moreover, only those who survive the Destiny Event can come here once!

Each redemption session only lasts half an hour, making the opportunity incredibly precious... We've all prepared in advance; if we survive this round, we can redeem the item that best suits our needs.

Following Cas's instructions, Han Dong reached out and touched the surface of the shell, which resembled Dyson Sphere.

A 3D projection of the selection interface is displayed in mid-air, divided into six categories.

[equipment]

[books]

[Living creatures]

Consumables

[Material]

[other]

When Han Dong saw this high-tech projection interface, he became even more certain that this Dyson Sphere- like object was definitely not a product of the present world.

This also led Han Dong to begin speculating about the origins of the Destiny Space.

"Some advanced civilization in the future glimpsed the horror and potential danger of 'life outside the city' and left behind methods on Earth in advance? Go back and ask Mr. Black and White... There's no point in me guessing here."

First, use the search engine to find brass, then spend 10 points to exchange for a ton of brass to complete the task.

Next, with only thirty minutes left, Han Dong began to quickly review the relevant categories.

Indeed, as Cas said, you can exchange for almost anything here. When you open the [Equipment] section, you need to filter by quality and category (weapons, helmets, gloves, etc.).

The corresponding equipment was arranged from low to high based on the points price, which dazzled Han Dong.

A piece of high-quality green equipment costs approximately 20 to 60 points.

Blue-grade high-quality equipment costs at least three figures.

Expensive... it must be very expensive.

Based on this calculation, Han Dong, as Knight-Errant, would need to complete the Destiny Space three times normally to accumulate enough points to exchange for blue equipment... Of course, there are also some special Destiny Event that may offer Point Reward.

But there is one advantage here.

The various side quests in the Destiny Event, and the equipment rewards they provide, are mostly random.

Here, as long as you have enough points, you can redeem the equipment that best suits you...

Han Dong then clicked on the "Books" category, which was one that Han Dong was unfamiliar with.

It contains various Magic Book, secret codes, and even books of demons, from which one can obtain demonic power.

Immediately following.

Han Dong also found some very interesting things, including his own country's cultural martial arts and even cultivation manuals that only appeared in some novels.

Basic martial arts skills aren't very expensive; you can buy them for about 20 points.

As for cultivation manuals, the cheapest ones start at 500 points and are of blue quality or higher... Han Dong is not considering them for the time being.

Although Han Dong's physical condition wasn't great, he didn't plan to buy a book on Body Refining to train his body... He figured his body could be improved simply by gradually replacing parts of it, so there was no need to train it himself.

Moreover, Han Dong already has a 'difficult to understand' book with him, and he has no time to learn other knowledge for the time being.

The "Living Things" section is one that Han Dong values highly.

Inside, you can also find all sorts of strange and unusual creatures.

Apart from humans.

Even some magical and fantastical creatures are available... all kinds of magical beasts, from small creatures like lava hounds and wind wolves that are similar in size to ordinary dogs, to large creatures like dragons, behemoths, and giant sea monsters, there is something for everyone.

Of course, there are also many humanoid races... such as elves, trolls, orcs, mechanical creatures, and so on.

These humanoid life forms are not only expensive but also have limited purchase options (one needs to reach the Seed Germination and the knight stage to purchase such a humanoid life form).

Some Knight-Errant with ' Control Department should exchange for living creatures here.

Han Dong stared at the expensive live creatures, showing no interest whatsoever... If he wanted them, he could just go to the ' Destiny Space ' and catch some ready-made.

Chen Li and Tuogu are in no way inferior to these living creatures in terms of potential.

As for the consumables and materials to be used later, there are many things that interest Han Dong, such as potions that can bring the dead back to life or replenish energy instantly, which would be enough to solve many predicaments, but the price is not something Han Dong can afford at present.

Han Dong hasn't made a decision yet, and 30 points won't get him anything very good, so he plans to save them for next time.

that's all.

Han Dong, having exchanged for a ton of copper ore, returned to the [Clock Tower].