My house was confiscated and I was exiled. I emptied the emperor's warehouse and fled.

Palace, study in the front yard.

Qin Mu was writing furiously on official business when he heard Yan Dong greeting Su Yunwan and Zhao Keyan outside the room. His pen paused.

He put down his brush and went out, clasped his fists and called Su Yunwan "sister-in-law", then nodded slightly to Zhao Keyan, whose cheeks were rosy.

Zhao Keyan folded her hands at her side, bowed, and saluted tenderly: "Third Master."

Su Yunwan noticed that Qin Mu had lost a lot of weight, and said with a faint smile: "It seems that Third Aunt is not exaggerating. It's better to combine work and rest and take care of your health."

Qin Mu lowered his eyes: "I will."

"Then I'll go and think of a dietary supplement recipe, you guys can do whatever you want."

After Su Yunwan finished speaking, she turned around and left, surrounded by Qingtang and others, without staying behind to be a light bulb.

Zhao Keyan watched her leave, then smiled shyly at Qin Mu, the heat on her body clearly visible.

Qin Mu turned sideways and said to Yan Dong: "Send a few ice basins over."

Zhao Keyan was secretly delighted, and the smile on her face became even brighter.

"Yes." Yan Dong lowered his head and responded. He glanced vaguely in Zhao Keyan's direction, then turned and left.

I secretly guessed in my heart: It seems that Qingsongyuan will soon have a female master.

Sure enough, Qin Mu returned to the study and immediately called the steward of Qingsong Garden, ordering him to investigate and transfer out the servant who sold information to the third aunt, and let Zhao Keyan take charge of the internal affairs of Qingsong Garden.

Zhao Keyan's face was full of disbelief. She never dreamed that Qin Mu not only did not blame her, but instead assigned tasks to the servants and let her take charge of the household affairs.

Her eyes were filled with emotion, and she bowed sincerely: "Thank you for your trust, Third Master."

"Yeah." Qin Mu responded indifferently, his thoughts drifting away.

The eldest brother is coming back soon, and he has to get used to showing a loving appearance...

After the housekeeper left, Yan Dong came in with three servants carrying ice basins. He placed two of them on Qin Mu's side and two on Zhao Keyan's side, and then they quietly retreated.

The room fell silent for a moment.

Zhao Keyan glanced at the unwashed brush on the table and said softly, "Third Master, let me grind some ink for you."

Qin Mu wanted to refuse, but changed his mind when the words came to his lips. He said "hmm" lightly and took a document to read.

Zhao Keyan walked to the table quietly, picked up the cigarette holder and module on the table, and began to grind them carefully.

The scent of ink gradually permeated the entire house, interweaving with the scent of flowers coming in from the window with the wind, softening the time.

On the other hand, Caiyun learned that Qingsongyuan's "informer" was sent to wash clothes, and she broke out in a cold sweat.

Seeing that she was in a state of confusion, the third aunt asked her what was wrong.

Caiyun hesitated for a long time, but finally told the story. At the end, she said softly, "The Third Master must have acted this way for the sake of the princess."

The Third Aunt accepted it well, "I know that Brother Mu doesn't like this kind of thing, so don't ask about Qingsongyuan anymore."

"What about Madam Zhao..."

"As long as she is sincere to my son, let her be."

Just this morning, when Qin Mu paid his respects to her, he sent the servants away, and the mother and son had some private conversation.

The third aunt's anxious heart, which had been anxious for a long time, finally calmed down and decided not to interfere in her son's backyard affairs.

In the following days, Zhao Keyan visited the third aunt many times, and was treated politely by the third aunt. On the surface, their relationship seemed to have been restored.

As for what happened in secret, only the two of them knew.

Once a crack occurs, it cannot be repaired immediately. Apart from human efforts, the rest can only be left to time.

Qin Mu stayed in the mansion for a few days, drinking the medicinal food made from ingredients that Su Yunwan used her supernatural powers to stimulate, and his complexion improved visibly.

Seeing that his mother was fine, he plunged back into the camp to continue his unfinished research.

As time passed, the first cannon was finally successfully launched thanks to the joint efforts of Qin Mu and trusted craftsmen.

Qin Mu set the test launch date on the third birthday of Su Yunwan's two children, and invited Su Yunwan to watch remotely.

If it weren't for the information and inspiration provided by Su Yunwan, I don't know how many years it would take to prepare gunpowder, let alone develop thermal weapons.

Qin Mu hopes that Su Yunwan, as the greatest contributor, can witness with his own eyes the glorious moment that will go down in history.

On the morning of the test launch, Su Yunwan, with her pregnant belly, rode in a carriage to the military base in the valley, escorted by a large force led by Qin Mu.

This base is located in a valley, and the air is filled with a tense and exciting atmosphere. All the craftsmen and generals involved in the research and development gathered on the observation platform, their eyes flashing with a mixture of expectation and anxiety.

Seeing Qin Mu and Su Yunwan coming, everyone restrained their expressions and greeted them.

At first, they didn't understand why Qin Mu invited the princess who was in the second trimester of pregnancy to attend the ceremony, until Qin Mu said that she represented the prince, then they suddenly realized.

Su Yunwan responded and stood at the best viewing position on the observation platform, looking around.

Not far below the observation platform, there is a huge cannon.

This cannon has a mighty appearance. It is made of solid fine iron and flashes with a cold light.

The gun body has tough lines, is huge and heavy, and the wheels of the gun are huge and solid, allowing it to move flexibly on the battlefield.

The design of the entire artillery is simple and practical, without any unnecessary decorations, and everything is designed only for combat.

Qin Mu handed two thick cotton balls to Su Yunwan and asked her to cover her ears with them.

"Three, two, one, fire!" Qin Mu personally gave the order to ignite the cannon. The cannon made a deafening roar, and a ball of blazing flame spewed out from the muzzle.

Immediately afterwards, a spherical shell flew towards the preset target area like a meteor across the sky.

Time seemed to stand still, and every pair of eyes was fixed on the flying shell, until a shocking explosion was heard in the distance, and the shell accurately hit the distant target.

Smoke and dust rose up, covering the sky and the sun. Its power was so great that everyone present was shocked except Su Yunwan.

There was a sudden burst of thunderous applause and cheers on the observation deck, and tears of excitement glistened in the eyes of the R&D team members.

"Congratulations!" Su Yunwan put down the cotton bag that protected her ears, and with a look of joy on her face, she congratulated and paid tribute to Qin Mu and everyone else.

Everyone present exchanged polite words and started discussing.

"With this kind of artillery, no city in the world can stop the lord's steps!"

"Not only in siege, but also in defending the city, cannons can effectively block the enemy's attack."

"This is God's help to my lord, this is destiny!!!"

"..."

Qin Mu curled his thin lips slightly, his eyes as dark as a cold pond, and looked at Su Yunwan with gratitude.

Rather than saying it was destiny, it was more like the will of my sister-in-law!

Su Yunwan guessed what Qin Mu was thinking and couldn't help but shake her head and chuckle.

There was a unique atmosphere between the two of them, and everything was self-evident.

Among the crowd around them, there was a general who saw the interaction between Qin Mu and Su Yunwan, and his brows slightly frowned.