In the quiet living room, the hazy yellow light overflowed from under the lampshade to illuminate the central area.

There, the case table has been cleared by Tangqi.

There was only a dagger on it, and the ghost grass of ESSOS nailed by the dagger, or professor Rick Kassel, next to it was a glass of water.

They are having a strange conversation.

Tangqi had an insight into the causes of the serial tragedies in Messer University, and then brought back the real "culprit", that is, Professor Kassel who became an activated shadow spirulina. Of course, it was not because Tangqi sympathized with his experience.

The old professor, whether at the legal or moral level, is not worthy of sympathy.

The reason for bringing him back is naturally because he has what Tangqi needs.

And there's more than one.

Tang Qi slowly withdrew his eyes from the pile of notes and manuscripts, then looked at the tap fungus and asked, "where did you get your secret pharmaceutical knowledge?"

If Professor Kassel was still human at this time, he would probably be shocked immediately when he heard this problem.

This is his biggest secret. If it is revealed, it will naturally change color.

Unfortunately, he is just a strange plant now.

Only the dark and greasy tentacles shook subconsciously, and then they were surprised at their current situation. They didn't intend to hide anything. They stained with water and wrote an answer on the record.

"When I was inspecting a sunken ship in the 13th century of the old calendar, I accidentally found some books that would not rot, which recorded a lot of secret medicine knowledge. Because it was a thunderstorm that day, other experts went to rest except I was willing to clean up those things."

"I was very interested in that knowledge, so I studied it all night. Unfortunately, the next day was a scorching sun. When those books were exposed to the sun, they burned up in an instant. In addition to some memories in my mind, those knowledge completely disappeared."

"According to my later research, those books may have been handed down from several mysterious tribes hostile to the ancient Mayan civilization. The identity of the owner of the sunken ship is not simple, but I can't find out for a long time."

Compared with Tang Qi's short question, Professor Kassel's answer is very detailed.

Without thinking more, Tang Qi asked, "do you have other mystical knowledge besides the knowledge of secret medicine?"

"No!"

"In addition to that accident, although other investigations I experienced in my life also encountered some strange and mysterious events, they were finally solved by guns. I didn't get more relevant knowledge, although I was also aware of the existence of the mysterious field."

"But I didn't give up my status and reputation, so I didn't expose my knowledge of secret medicine and break into the unknown world."

Reasonable explanation, Tang Qi said silently.

A follow-up question, but Tang Qi didn't say it.

He wanted to know what level Professor Kassel had promoted his secret medicine, such as whether there were successful career promoters. In order to promote his career, he needed to successfully prepare those secret drugs in order to obtain professional certification.

According to Tang Qi, the corresponding profession of secret medicine should start with "secret medicine apprentice" and then formal "secret pharmacist".

However, since professor Kassel has not really entered the mysterious side, there is no need to ask.

Tang Qi sat on the sofa, thinking silently.

Professor Kassel's words should be true. In this situation, he doesn't need to deceive himself. From his rash use of curse secret medicine to turn the female teaching assistant and guard captain into a spider monster, it is obviously not a mysterious person.

As long as it involves a little mysterious side, you should know that in terms of extraordinary power, the official is the really terrible side.

In fact, even without Tang Qi's intervention.

The serial murder cases in Mercer University will be solved smoothly in the end.

But at that time, the influence will certainly expand to a certain extent and attract the intervention of official forces.

At that time, Kassel, the culprit, will come to a miserable end.

In this regard, Tangqi is Kassel's savior.

With this in mind, Tang Qi suddenly got up slowly, stood a few days before the case, leaned out his hand to hold the dagger, and then pulled it out directly.

But I heard a "hiss" sound, and a few drops of black liquid, accompanied by Tang Qi's action, shot out of the activated tap bacteria and splashed on the table.

However, Rick Kassel, who was free, did not move, just like a big black octopus, lying on the table, waiting for Tangqi's disposal.

Smarty Pants!

Tang Qi gave a silent evaluation, and then without delay, he said the contents of the transaction initiated by him at the next moment.

"Professor Kassel, I can find you a perfect body that meets the requirements, preside over ceremonies and recite spells for you, and give you a chance to start your life again."

Kassel didn't look excited at this.

But waited quietly. Sure enough, Tang Qi's voice continued to come.

"In exchange, you need to pay some price. The only thing you can trade now is your... Knowledge!"

"Secret pharmacy knowledge, you should trade all the unexpected secret pharmacy knowledge to me."

"Since you can get ESOS ghost grass from the Wizards in Saha, you should also know how to cut your soul. As long as you inject all the secret medicine knowledge into a soul fragment and cut it down, we will complete the transaction."

"Of course, you can choose to refuse. I will directly send you on the road and kill the real murderer of a serial murder. I won't have any burden."

"Or you can choose to cheat me when cutting, but if I find out, I will still kill you."

With that, Tang Qi stood on one side and waited quietly for it to make a choice.

On the surface, there was no excitement or other look in Tangqi.

It seems that the secret pharmaceutical knowledge is not important to Tang Qi. Today's deal is just that he does it casually.

Because of the contact between the two sides, Tang Qi had the absolute advantage from the beginning. Although Professor Kassel is a smart man, in his opinion, Tang Qi, a high school student, may be a mysterious senior.

Most importantly, it actually has no choice.

One side is complete death!

One side is to pay secret pharmaceutical knowledge in exchange for a new life!

As long as you are not stupid or crazy, you can make the "right" choice.

Sure enough, when Tang Qi's countdown to three, the "black Octopus" on the table moved.

Under Tang Qi's gaze, it slowly raised its smallest tentacle.

"Zhi Zhi"

The simple action seemed to bring great pain. It began to scream again before the mouse was trampled to death.

Gradually, in Tang Qi's sight, the short black tentacle began to turn red, and a ray of red light poured into it, showing a color like a red soldering iron.

At the same time, a special interface jumped out of Tangqi's fundus.

Pieces of information flowed by.

When the last fragment passed, the black tentacle was red to shiny, and Kassel's scream probably meant that the person living in the small building was a pervert who liked to abuse mice.

"Hiss ~"

Tang Qi took his hand. The sharp dagger cut through the air and the tough tentacle at the same time.