In the empty darkness, the sound of water droplets falling on the stone slab echoed endlessly.

Karin was covered with bandages, lying on the cold stone bed, every inch of her body's skin was as painful as being burned by flames.

"water……"

With all her strength, Karin squeezed a word out of her throat.

After a long wait, just when she thought the world had already abandoned her, a refreshing spring touched her lips.

Opening her dry and cracked lips, Karin swallowed the water greedily, feeling the power of life returning to her body.

Slowing his breath, Karin didn't know how long she had been in a coma, trying hard to open her eyes and see where she was.

After some attempts, she discovered with horror that everything was in vain, and there was still darkness in front of her eyes.

Stretching out her hands to touch her face, the heavy bandage made Karin panic: "My eyes! What happened to my eyes?! I can't see anything!"

No one answered her.

Struggling to get up from the stone bed, Karin just wanted to go to the ground, but her weak body caused her to stagger to the ground.

A pair of solid and powerful hands held up Karin, like holding a priceless treasure, and carefully put her back on the stone bed.

Frightened, disturbed, and irritated, Karin coughed violently while asking loudly: "Who are you?! Let go of me! Let go of me!"

No one answered her.

Karin curled up in a corner of the stone bed, groping around with both hands, trying to grab anything that could be self-defense.

Suddenly, she thought of the soul space.

But what she didn't expect was that no matter how she called the soul space, the response was only dead silence.

Ten minutes passed.

After some struggle, Karin gradually despaired.

She leaned her back against the wall on the side of the stone bed, sat there blankly, and asked, "Where is this?"

No one answered.

"What do you want to do to me?"

No one answered.

...

Karin hugged her knees with her hands, buried her head, and started crying quietly.

The owner of those big hands, seeing Karin crying, was a little overwhelmed and made some weird noises.

Finally, he left.

Karin, who was alone, sat on the cold stone bed alone, crying louder.

Half an hour later, to Karin's surprise, the strange person returned.

With the sound of footsteps getting closer, Karin, who could not see, stopped crying in fright, and kept hiding behind her body.

An object was delivered to Karin.

The scent rushing to the face, mixed with the smell of roasted meat and spices.

Karin swallowed, then turned her head stubbornly.

The weirdo brought the food closer, and some unexplained bytes were sent in his mouth.

Karin quickly stretched out her hand and grabbed the barbecue wrapped in greased paper. Regardless of the temperature and greasiness of the paper, she stuffed the meat into her mouth like a hungry wolf.

Seeing Karin finally willing to eat food, the weird happily made a strange sound of "Lotus".

Turning her head to the source of the sound, Karin yelled, "Shut up!"

The eccentric hurriedly covered his mouth with his hand, and turned around obediently, not daring to look at Karin again.

Outside the door of the room, from beginning to end, stood an old man with a shaggy figure.

He didn't say a word, didn't move, just watched all this quietly.

The capital of the empire, Baghdad University, the Church of Truth.

"I don't understand, how could there be an invisible force pulling everything down? Where does this force come from? How is it formed?"

An imperial student dressed in white and wrapped in a headscarf stood on the podium holding a book called "Introduction to Introductory Mechanics", shook his head and said: "The thoughts of this twilight scholar is too whimsical. I have only seen hypotheses and inferences, but there is no evidence that can stand up to it."

Another student in the audience stood up and retorted: "Any discovery of truth begins with assumptions and inferences. It would be too arbitrary to deny this book on this ground."

The latter student went on to say: “Look at a famous example written in the book. Stones and iron blocks of the same size and different weight are allowed to fall vertically from a high place. Whenever and wherever they are, they finally They can land at the same time. Therefore, things with different weights and materials will fall at the same speed in the air, which proves that from within the earth, there is the same huge force that is pulling all objects towards the ground."

"Absurd!" The first student retorted: "I will give you a counterexample. Throwing away paper **** and iron blocks of the same size at the same time. The iron blocks must be the first to land. How do you explain this?"

Listening to the students in the Truth Hall, arguing constantly over the theory in the book, Saladin, the Imperial Caliph, sitting in the guest seat, not only did not feel any irritation, but nodded frequently.

Elem, the captain of the Caliphate Guard, frowned and drew close to Saladin, and whispered, "These students are too noisy. This is not good for your health. Why should I make them quieter?"

Saladin shook his head and said, "You don't understand, the voice of truth should not be sparsely sounded, should not be retreated, and should not be compromised."

Elem scratched his head, looking puzzled.

Saladin looked at his captain of the guard and said with a smile, "Don't worry about my body."

Elem glanced at the emperor secretly, and the opponent's thinning body and bloodless face made him lower his head and sighed secretly.

After some debate, the students still did not form a unified opinion.

Saladin waved his hand, beckoning them to stay calm.

Everyone immediately stopped arguing and debating, and stood in the hall with their heads bowed, waiting respectfully for the caliph's admonition.

"This "Introduction to Quotations" was written by scholars at Muxi University. Although Wenxianyuan has just completed the translation, it is a work completed two years ago."

When Saladin said this, the whole room was filled with surprises.

"Starting from this "Introduction to Quotation", Muxi University has published "Spatial Analysis of Gravity", "Introduction to Rigid Body Statics Research", "Equivalent Analysis of Equilibrium Mechanics" and "Mechanics" in the past two years. A series of works such as "The Theory of Vector Moments", "Frontiers in Fluid Mechanics", "The Theory of Elementary Structural Mechanics" and so on."

Saladin said with a wry smile: "The scholars of Wenxian Academy are working overtime to translate these works, but due to the relationship between professional terminology and theoretical foundation, the translation work is difficult."

"Why should I say this to you today?"

Saladin patted the booklet in his hand: "I heard that many of you are often complacent and boastful about solving a so-called problem or making an interesting machine."

"What you don’t know is that ~lightnovelpub.net~ is not far from the empire in the north. There is such a kingdom, such a university, and such a group of scholars. There is no one in our country who wrote the books. I can understand everything!"

Saladin's voice was getting louder and louder and louder. At the end, he stood up and shouted almost as hard as he could.

The students looked at each other, their faces flushed, and they were silent.

"Blind arrogance is a blasphemy against God, and even a sign of betraying the truth." Saladin panted and sat tremblingly: "From today, I will distribute these teaching materials to everyone's hands. Go. Of course, there will be the same books on the top of my desk, and I will study with you."

A guard walked in through the gate, walked to Elem's side, attached to the latter's ear and said something.

Soon, Elem came to Saladin's side and said a word in a low voice.

"The throat bone is back."

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