There are different restricted forbidden areas in Lanxi City, some of which are only accessible to locals, and some can only be entered by having a bachelor's status, so having a bachelor's status can save a lot of unnecessary trouble.

Originally, Leo thought that it would be very difficult to obtain a bachelor's qualification in Lanxi City, but from the bulletin board of the grocery store, he found that obtaining the status of an advanced bachelor is indeed a bit troublesome and will take a lot of time, but obtaining the status of a bachelor of a general nature is very simple, you only need to take the academic certificate exam held by the bachelor's association, and the latest exam is two ticks later, that is, a day after the world of Velon.

It's just that on the bulletin board, there is no test item and type, so Leo asked the clerk of the grocery store, and learned from the clerk that the content of the exam is pharmacy, and the clerk knows that Leo intends to take the certificate exam, and he also spares no effort to sell the materials and books related to the academic administration exam in the grocery store.

Leo and Sylvia looked through them casually, and found that these books were very basic, almost all of them were some common sense content, and according to the clerk, the first-level academic certificate only needed to memorize the content of these basic books to basically pass.

If you want to get a second-level certificate, then you need to use the first-level certificate to go to a nearby library to borrow specialist books.

Under the introduction of the clerk, Leo bought all the basic books and other types of books in the store, and Leo also found a large number of unseen Black Forest species in the grocery store, and he also bought them selectively.

For this small grocery store, Leo's crazy sweep was definitely the biggest deal since they opened the store, which made the owner of the grocery store also alarmed, and hurriedly came down from the upper floor to greet Leo and them personally.

"If you need any other books and Black Forest collections, I can find them for you, too?" whispered to the shopkeeper very carefully after the shopkeeper instructed the clerk to deliver the things to the hotel where Leo was staying.

"Other books and collections?" Leo looked thoughtfully at the owner of the grocery store.

"Yes, very valuable books and collectibles!" the grocery store owner emphasized.

Obviously, the precious books and collected items mentioned by the grocery store owner are some items that are restricted by the laws of Lanxi City, but these items should not be particularly serious forbidden items, and even if they are discovered, there will be no major problems, otherwise, the grocery store owner will definitely not present these things in front of a strange customer he has just met.

In this regard, Leo did not refuse the recommendation of the grocery store owner, but asked the grocery store owner to get as many books and collectibles as he said in the past two days, and also emphasized that he did not necessarily need the kind of "precious" books and collectibles, as long as he did not buy them from the store this time, they could be sent to him.

Naturally, the grocery store owner was overjoyed to hear Leo's words, he could already foresee how much he would be able to make from this sale, so when Leo and Sylvia left his shop, he immediately went to all the suppliers he knew to collect all kinds of books and Black Forest collections for Leo.

Although they had already bought a lot of things, Leo and Sylvia did not plan to return to the hotel just like that, but continued to wander around the public city, learning about the situation in Lancy City and the Black Forest as well.

If it weren't for entering the realm of the Mother of Filth this time, Leo and Sylvia would not have known that there were so many intelligent races and so many city-state civilizations with different systems in the Black Forest, and in their understanding of the Black Forest, the Black Forest was just a primeval forest inhabited by ancient species and containing mysterious powers.

Leo is not too new to the situation of the Black Forest, which has a large number of civilizations, after all, he has seen countless civilizations and intelligent races, so he only has an ordinary exploration of the situation in the Black Forest, but Sylvia is extremely excited and curious about everything here, especially when he sees those various humanoid and non-human intelligent races, he shows extremely obvious strange eyes, which makes those races who are looked at a little unhappy and annoyed, and almost clashed several times.

However, it was only a close one, although Leo and Sylvia deliberately converged the strength on their bodies, their higher form of life characteristics could not be converged if they wanted to.

Although these intelligent races of the Black Forest have been in an environment full of various mysterious energies like the Black Forest for a long time, their life forms have naturally evolved and their overall quality is much better than that of the humans in the Velen world, but there is still a big gap compared to Leo and Sylvia, and in the face of the suppression of life forms, they all instinctively reacted back and avoided.

Due to their status, Leo and Sylvia only walked in the public area of the lower thirty floors, while the middle thirty floors required a guarantor or a full moon stay in Lancey for up to four full moons to enter.

In this regard, Leo and Sylvia are not in a hurry, as long as they wait for the first-level academic certificate, these regions will no longer restrict them.

After the two of them finished their visit, they returned to the hotel, where the clerk at the grocery store had already delivered all the purchases to their rented room, but fortunately the room Leo had chosen was the largest of all the rooms in the hotel, and although there were many things to buy, they only occupied a small corner of the room.

After returning to the room, Sylvia couldn't wait to pick up a book and read it, although the language on it is similar to the ancient French variant of the Second Dynasty of France, and it is very different from the current French, but Sylvia has also studied the ancient French language, and has also studied the language of the Second Dynasty, and there may be some difficulties in reading the content of this book at first, but soon she found the rules of the language, and she was almost able to read at a normal reading speed.

While Sylvia was reading a book, Leo began to pack up the gatherings from the Black Forest that he had bought from the grocery store.

His method of cleaning up is very simple, directly feel whether these items contain energy fluctuations, those collected items with energy fluctuations will be left by him, as for the other items are all treated as garbage, let the hotel waiter clean up, and these items that he treats as garbage are a lot of windfall for the waiter who helps him clean up the items.

Among the items left behind by Leo, in addition to those herbs that contain energy fluctuations, there are only four pieces of miscellaneous items that contain strong energy fluctuations, but it is not quite right to say that four items, it is more accurate to say that there are four items in a set.

These four items are four metal cards, each with very intricate patterns engraved on them, in which Leo sees a shadow of the Wizard's Tower, but only a shadow.

Leo doesn't know exactly what the four metal cards do, but he can be sure that these four metal cards should be a strange thing that can be used, and the way to do this is to inject energy and activate the patterns on the cards.

Although he already had a preliminary understanding of how to use them, Leo did not plan to try to activate these metal cards, because he did not know what power was hidden in these four metal cards, whether this power was dangerous, and whether these four metal cards could only be used once, or whether they could be used repeatedly.

He was more curious about the process of making metal cards than about the power they contained, as he could see that all four metal cards were made of Abron metal.

In Leo's memory, Abron metal was one of the strongest, strongest, and most wear-resistant metals in the universe, and it was often used to make the protective shells of subspace engines, a metal that could withstand seven times the temperature of a star's core, or nearly 100 million degrees Celsius before melting.

The way to identify Abron metal is very simple, that is, the light shining on the metal surface will have a very obvious light absorption effect, and it is even obvious that you can see the distortion of light on the metal surface.

The technology that can process Abron metal has always been regarded as one of the necessary conditions for the promotion of the cosmic civilization to the higher civilization, and the vast majority of the advanced civilizations have only mastered a part of the processing technology, and the cosmic civilization that has mastered a full set of processing technology can be said to be only a handful, even the Earth Federation does not have this kind of metal processing technology.

However, the metal with such a high processing technology has been made into a palm-sized card at this moment, and the processing technology contained in it is definitely the top in the universe civilization.

"Could it be that I read it wrong?" Because of this, Leo couldn't help but wonder if there was something wrong with his judgment of this metal card, in fact, this metal was just a lot like Abron metal.

In his suspicion, Leo lit the fireplace in his room, and when the flame in the stove burned vigorously, he threw a metal card in his hand into the fire.

Not to mention a special metal that can withstand hundreds of millions of degrees of heat, even ordinary metal is difficult to melt in a furnace fire at this temperature, but Leo wants to test not whether the flame can melt the metal card, but to test the effect of the card on the flame.

Leo suddenly raised his hand and put his palm into the flames of the stove.

"Leo, what are you doing? Are you crazy?" Sylvia, who was reading a book, also noticed Leo's actions, and immediately let out an exclamation, then dropped the book in his hand, rushed over and grabbed Leo's arm, trying to pull Leo's hand out of the flames.

"Don't be nervous, I'm fine. Leo raised his hand to stop Sylvia, then let his palm go back and forth in the fire a few times, and then placed his hand in front of Sylvia.

I saw that Leo's palm was not only not on his hand, but not even the hair on his palm was burned.

"What's going on?" Sylvia looked at Leo with some puzzlement, she initially thought that Leo had attached a layer of extraordinary power to the surface of his palm, blocking the flames, but after thinking about Leo's behavior just now, she felt that Leo should not have used any extraordinary power.

"You try it too. Leo gestured to the flames in front of him and said to Sylvia.

Hearing this, Sylvia hesitated for a moment, but still with trust in Leo, she reached into the flames without any protection.

"What's the matter with this flame?" Sylvia felt something unusual as she placed her hand fully into the flames, and watched in amazement as her hand swayed back and forth in the raging flames.

Not only did she not feel the temperature of the flames when they burned her palms, but she felt a chill, as if she had put her hand on top of an ice cube.

Leo didn't answer Sylvia's doubts, but looked at the piece of Abron metal burning in the fire, and at this moment he was sure that it was Aberon metal, because in addition to the light-absorbing properties, the conversion of heat energy is also one of the properties of this metal.

Abron metal conversion heat energy is not like other heat energy conversion devices to convert heat energy into other energy, it is just the temperature generated by the conversion of heat energy, so that the temperature of heat energy within its range of action is greatly weakened, and the various characteristics of heat energy itself have not changed, just like now the flame can not burn people's hands, but it can still burn wood.

Until the moment of Leo's death, the principle of the universe regarding the contradictory effect of Abron metal's thermal energy conversion was still unsolved.

Now such a special metal, which is still the top in the cosmic civilization, has been made into this strange thing that contains mysterious power, which undoubtedly indicates that a certain civilization in the Black Forest has mastered a mysterious processing technology, and if this news spreads to the universe, it will definitely cause a lot of fluctuations.

"Is this the cause of this metal?" Sylvia quickly spotted the problem, picked up the metal card from the fire, and then tried to put her hand close to the flames, immediately feeling the temperature of the flames change.

"Yes. Leo nodded, and then gave Sylvia a detailed introduction to the metal, which made Sylvia stunned.

"How high is 100 million degrees?" Sylvia asked, somewhat stiffly mimicking the word 100 million degrees in Earth Federation.

Leo thought for a moment, pointed to the flame in the fireplace, and said, "This flame is about one or two hundred degrees, and one hundred million degrees is almost a million times the temperature of this flame." ”

Although Leo made a comparative description, Sylvia's concept of common sense still did not know much about this 100 million degrees.

So, Leo made a more appropriate description, saying: "If a 100 million degree flame appears in Vilon, the entire Vinylon world will be burned to scorched earth in an instant, and the center point will even be vaporized." ”

Sylvia gasped, and although she hadn't seen the scene Leo was talking about, she had seen volcanic eruptions up to what the scorched earth looked like, and the scene Leo described quickly came to mind.

After calming down, she couldn't help but look at the metal sheet in her hand and couldn't help asking, "It takes such a high temperature to process this metal, and how is this metal sheet made?"

Leo smiled and said, "I want to know too." ”