I picked up the dragon girl at the beginning and I used artillery fire to liberate the other world

Black Iron Castle has added more than a thousand high-quality working population, which is a good thing for Bai Yan.

It has been more than a month since I came here, and in such a short period of time, my own civilization is developing at an accelerated rate.

All this is thanks to the Book of Everything. This extraordinary book that came from nowhere has always made Bai Yan feel uneasy.

Nothing can come out of nothing, so its existence must have been created.

So, who is it, or what kind of civilization, that could have created such an astonishing artifact?

Perhaps my own time travel is also closely related to this book.

With a sigh, Bai Yan closed the Book of Everything, then walked out of the bedroom and came to his own study.

As soon as he entered the door, Bai Yan saw Iris considerately spreading out a brand new piece of paper for him, and the feather pen was placed neatly aside.

Hearing the door open, Iris turned to look at Bai Yan, then pursed her lips and tilted her head to indicate that you're welcome.

Bai Yan walked over and rubbed Iris's head, then sat down at the table, and Iris watched obediently. I don't know why, but this hundred-year-old elf always likes to think of Bai Yan.

Following the answer to the Book of Everything in his mind, Bai Yan began to draw on paper.

He planned to start manufacturing an entirely new type of artillery shell, a lightweight artillery piece that used high explosives - the mortar.

. . .

While Bai Yan was working at his desk drawing the design, Claude finally ran back to the Dawn Fortress.

He did not dare to stop at all during the entire journey, and only breathed a sigh of relief when he entered the fortress.

Sebastian was sitting on a high seat, shaking a glass of bright red wine in his hand. His huge palm made the glass look a little out of place in his hand.

Seeing Claude rushing in, covering his chest and kneeling on one knee on the ground, he felt a little disdainful.

We just captured a small Black Iron Castle. Is there any need to be so excited?

He believed that a nobleman should maintain the most basic elegance, just like himself.

But he soon realized something was wrong.

Claude had nothing in his hands, even the knight's sword and shield disappeared.

"Claude, where is Bai Yan's head?" Sebastian put down his glass, stood up and walked to Claude. "Did you destroy that guy?"

Claude lowered his head, his body trembling violently. The silent atmosphere in the castle hall became even heavier.

Sebastian looked at him, feeling a little uneasy, but he couldn't believe the result.

He still held out hope and shouted angrily, "I'm asking you a question! Where's Bai Yan's head!!"

Claude immediately knelt on his knees, pressed his head tightly to the ground, and cried in fear in his feminine voice: "My Lord Earl, I am useless and failed to complete the mission."

Sebastian's eyes widened, wrinkles crowded on his dark face. He suppressed his anger and asked, "What happened? Where are our soldiers?"

Claude was even more terrified when he heard this. "Lord Earl, don't blame me! Bai Yan has a legion of mages who can actually use fire meteors. There are too many of them! Too many!!"

It was only then that Sebastian noticed that Claude's armor was gone, probably having been taken off while escaping.

Suppressing the anger in his heart, Sebastian asked, "What level of wizard?"

"I don't know, but they only know this kind of magic. They look like low-level wizards who have just started learning magic."

Sebastian breathed a sigh of relief, the situation was not too bad now.

He also had an army of 20,000 men, not to mention a 500-man knight order composed entirely of mid-level knights.

Bai Yan, you must die! Otherwise, what awaits Sebastian is the judgment of the great prince Servis.

In the Lord's Castle of Black Iron Castle, Bai Yan finished drawing the design drawings of the mortar and stretched his body.

Feeling his clothes being pulled, Bai Yan turned his head to look.

Iris was holding a cup of warm water in her hand and handed it to her as if offering a treasure.

She was so sensible that Bai Yan couldn't help but rub Iris's head. Then he took the water from her hand and drank it in big gulps.

"Iris, I made a piece of clothing for you. Come and see if you like it?" After putting down the water cup, Bai Yan remembered the clothes he had customized not long ago.

The clothes the little girl was wearing belonged to her maid. They were too big for her and looked very uncomfortable.

Taking her to the bedroom, Bai Yan took out a black cotton skirt with white edges from the closet. It was not decorated with any patterns, it was just a simple cotton coat.

"Put it on later and see if it fits." Bai Yan put the clothes in her hands and said softly.

Iris stared at the cotton coat in a daze, touched it with her little hand, then took out her little notebook and started writing on it.

Then I showed it to Bai Yan, and it said: [Thank you Bai Yan, I like it very much. ]

Bai Yan smiled and said, "Don't be so formal with me, we are a family."

Iris nodded, then slowly walked forward and gently hugged Bai Yan with both hands. A blush appeared on her dazed face, and she closed her eyes and pressed herself against him.

Bai Yan thought this was Iris's way of thanking him, and couldn't help but touch her head. This comfortable touch was really addictive...

After Iris let go of Bai Yan, the little girl kept staring at Bai Yan, blinking her golden eyes again and again.

Bai Yan didn't quite understand what she meant until a blush appeared on Iris's face and she unbuttoned her collar, then Bai Yan realized - she wanted to change clothes.

When Bai Yan turned around and walked out, Iris had already unbuttoned half of her clothes, revealing her delicate white skin.

She watched Bai Yan walk out in a panic, and finally just sighed slightly.

Turning to look at the black cotton coat with white edges in front of him, he couldn't help but hug it tightly, with a hazy smile on his face.

In the gap in space, Alicia breathed a sigh of relief when she saw Bai Yan go out. The silver dragon who was in unrequited love was in distress.

The person she secretly loves seems to be doting on a little elf. A great sense of crisis arises in her heart, and she feels that she must do something to consolidate her position in Bai Yan's heart.

In the gap of space, her expression was complicated. After a moment, her eyes gradually became firm, as if she had made some kind of decision. She moved through space and appeared in the dark forest. Her body transformed into a silver dragon, flew in one direction, and gradually disappeared in the distance.

When Bai Yan handed the mortar's design drawings to the military factory, Sebastian had already assembled an army of 20,000 and a group of mid-level knights wearing silver armor, and were about to set out to attack the Black Iron Castle.

The long team looked like a river, and the sound of armor stepping on the ground could be heard from miles away.