For a week, Chu Ling was immersed in the hidden library, fighting wits and courage with the security personnel.

He has very limited time to read each day, so he cherishes this time.

Reading for two hours a day, after 1 week his elementary alchemy was already full.

[Elementary Alchemy: 20/20 (Intermediate Alchemy is required if you want to break through to the next level)]

Chu Ling looked at the extra explanation part of the entry, and always felt a little familiar, and after a while, he relieved himself.

Riding a horse, isn't this the material needed for upgrading in the game?

Chu Ling was a little depressed, although there were a lot of books in the secret library, he searched the entire secret room and didn't find the ancient dragon books of "Intermediate Alchemy".

Luckily, though, he found another alchemy book, which was a recipe for an alchemy potion to be exact.

Chu Lingxin said that he was lucky, this alchemy recipe only needed the threshold of primary alchemy to learn, and the content was to refine the "dragon blood potion".

[Primary Dragon's Blood Elixir: Only a very small amount of dragon's blood is needed to refine 1 bottle of primary dragon's blood potion, of course, you need to add some other metals to it, see ...... below for the detailed formula]

[Effect: Primary Dragon's Blood Elixir has the effect of activating cell activity, promoting cell division and accelerating the healing of injuries. Believe me, this is an alchemical potion more powerful than Chinese herbs]

Chu Ling was taken aback.

Dragon's Blood Elixir?

He remembered that the dragon serum known in the dragon clan was mainly used for two purposes, one was that the Nibelungen planned to refine the bloodline and produce a hybrid dragon king; The other is to make an elixir to prolong the life of the dying person, in the Dragon Five, a dragon serum as an elixir can be auctioned for hundreds of millions of dollars, and even attract the top families in the world to obey their orders!

Based on Chu Ling's current understanding of alchemy, that so-called dragon serum should be equivalent to a high-grade dragon blood elixir.

The future is promising.

Without hesitation, Chu Ling began to read this alchemy recipe and forcibly memorized the contents in his mind. Because these days, he has been coming to the lab at night to "work overtime" too often, and the security personnel have gradually discovered the anomaly, and may report it to Dr. Herzog.

Chu Ling didn't have much time to read, he had to run away with the black snake quickly, this alchemy recipe would be the last treasure he stole from the hidden library!

"You read the alchemy recipe for the primary dragon's blood potion."

"Now, you've learned how to make a primary dragon's blood potion."

[Name: Chu Ling]

[Transcendent Class: Ninja (Sequence 8)]

[Experience: 3/200]

[Dragon Bloodline: S Rank]

[Special Items: Throne of the World Tree (Embryo), Golden Ghost Face (Legendary Item)]

[Skill: Silent Infiltration, Elementary Alchemy]

【Alchemy Formula: Primary Dragon's Blood Elixir (0/100)】

The character card changed again, and Chu Ling checked the detailed description of the primary dragon blood potion. It seems that the method of obtaining experience points from alchemy potions is not the same as "skills", but it requires the actual preparation of potions in order to increase experience.

After mastering the alchemy formula for the primary dragon blood potion, Chu Ling returned the books to their original place and walked out of the hidden library.

While searching in the research room before, he also found two other secret doors, which, as expected, were probably cold storage for half-breed embryos and a secret passage to the underground burial place.

Chu Ling hummed a little song as he pressed his palm against one of the iron doors.

The essence of alchemy is the reconstruction of all matter in the world, and when Chu Ling perceived the structure of the iron gate, he thought of the famous chanting mantra of Emiya Shirou in "fate", "Trace on".

His heart moved, since the essence of alchemy is the reconstruction of matter, it is not impossible to understand the structure of matter and reorganize it into a weapon at hand, right?

It was a bit difficult, but he gave it a try.

Drops of sweat poured out from Chu Ling's forehead, and he looked at his palms with burning eyes. The iron gate that was attached to his palm suddenly began to shrink and collapse, and then the entire iron gate seemed to ripple on the surface of the water, and large and small ripples appeared.

“Trace on！”

A huge hole appeared on the iron door, and the substance that had been taken away appeared in Chu Ling's palm, turning into a dagger with a somewhat rough shape.

"My alchemy is still a bit rough, and I still need more practice." Chu Ling smiled bitterly.

The dagger in his hand was barely the first alchemy weapon he had ever made, and although it lacked sharpness, it was his first attempt. In the future, with the proficiency of alchemy, it is not a pipe dream to make divine weapons from anywhere.

After the iron door hole was opened, gusts of cold wind blew out from inside, freezing Chu Ling's whole body with goosebumps.

Behind the door is a cold storage room filled with countless boys, girls and thumb-sized embryos.

Two of the metal chambers contained two young boys less than a year old, with tubes of nutrient solution and oxygen masks, who had never been seen in Black Swan Harbor.

Chu Ling quickly found Eri Yi who was related to them through the code of the experimental subject, at this time, Eri was still just a thumb-sized embryo, and in the future she would be a red-haired girl as beautiful as cherry blossoms.

Chu Ling watched in a daze, some memories that did not belong to him came to mind, he seemed to be in a red love hotel, the rain was pouring outside the window, and a red-haired girl who was regarded as mute leaned into his ear and whispered: "We are all little monsters, and one day we will be killed by the righteous Ultraman." ”

"04.24, go to Tokyo Sky Tree with Sakura, the warmest place in the world is on top of the Sky Tree."

"04.25, go to Meiji Jingu with Sakura, someone has a wedding there."

"04.26, go to Disney with Sakura, the haunted house is scary, but there is Sakura, so it's not scary."

"Sakura is the best."

It was as if a string was trembling deep inside.

A silent smile suddenly appeared on Chu Ling's face, and he seemed to be muttering to himself in another person's voice: "I'm back, I'm much stronger than before, and I'm a lot more confident. ”

"This time, the little monster will never be killed by Ultraman."

He suddenly reached out and hummed a song, as if he were extending an invitation to some red-haired girl he hadn't seen in years. He sang and laughed lightly, danced hand in hand with the girl in his invisible memory, danced briskly, and slowly walked out of the cold storage.

Standing outside the cold storage, he suddenly changed back to the same Chu Ling, looking at his heels blankly, as if there was a blank memory halfway, and when he woke up, he had already appeared outside the cold storage.

Having settled down, Chu Ling re-used alchemy to close the iron door, no longer bothering the sleeping children inside or the children who had not yet grown.

It was getting late, and he walked out of the research room.

As for the underground passage to the Dragon's Lair, he hesitated to open it, because in a few days a man named Bondarev would visit this mysterious harbor near the Arctic Ocean.

The secrets of the dragons hidden beneath the permafrost will finally be revealed.