Song Yujin looked at Yu Nuan for a long time before he nodded and spit out a word, "Okay." ”

Yu Nuan suddenly had a smile in her eyes.

"Then I'll go back first, I've been very busy lately." This is actually true, she has a lot of things to prepare when she goes to Jishan.

"Wait a little longer, my brother asked the next person to make some of your favorite food, eat it and leave."

Song Yunuan thought for a moment, after all, they had just reached an agreement, if she didn't even stay for a meal or something, it would be too insincere.

So Song Yunuan agreed.

Hearing Song Yunuan's promise, the depression in Song Yujin's heart finally dissipated.

The military supply of 300,000 yuan has emptied all his reserves in recent years.

Rao is so, it is still not enough, he has not done it in such a short time.

However, the 20,000 military quarters that Yu Nuan asked him to procure later were all ready.

It's not that hard.

Another few days have passed, and Song Yunuan has been so busy these days that she has been flying.

Every day is the Ministry of Industry, the factory, the princess's mansion, running back and forth at three points and one line.

On this day, Emperor Hongyuan was dealing with government affairs in the warm pavilion, and suddenly the mountains began to shake with a huge roar.

His first reaction was that the earth dragon had turned over?

Run!

Then Emperor Hongyuan and a group of cabinet ministers all ran to the clearing, and nothing happened.

But the smoke billowed from the Ministry of Works.

"What's going on?" Emperor Hongyuan looked puzzled.

"Tong Jian, go take a look."

Tong Jian came back soon, and his body still smelled of burning, and when he looked closely, there was a hole in the hem of his clothes.

"Back to Your Majesty's words, it wasn't the earth dragon that turned over just now, it was Princess Yujia who tossed **, saying what is the medicine to be studied."

Emperor Hongyuan had an expression that you were playing with me.

Cabinet ministers are not convinced.

Song Lingguo has such a thing, but most of them are used to make fireworks, how can such a big movement happen?

"Let's go, let's see." Emperor Hongyuan's curiosity has been aroused.

Tong Jian was a little embarrassed and said, "Your Majesty, the Ministry of Industry is in a mess now. ”

"It's okay, I want to see what this girl is messing up again." **This kind of thing, which is not too harmful, can actually shake the palace, what is in this girl's head?

Strange ideas go on and on.

Song Yujin and Song Yuchen, who were entering the palace, also felt that the earth was shaking, and their first reaction was also, the earth dragon turned over?

Then I felt that something was wrong, the earth dragon turned over for a while, but this didn't mean to last at all, just like that, but the vibration at that moment was still relatively strong.

It's a little stronger than the Earth Dragon's rollover, and besides, this feeling is not quite right.

"That place is ......," Song Yujin looked at the place where the smoke was billowing out.

"It's the Ministry of Works." Song Yuchen answered.

Both of them knew that Princess Yujia had often gone to the Ministry of Industry to do things recently, and now, both of them went to the Ministry of Industry together.

Song Qinghuan, who was in the harem, didn't feel much, but felt that the ground shook slightly, but he didn't care too much.

Maybe it's your own delusion?

Recently, she was able to go out of the palace to run the Song Die bicycle factory, which is the only bicycle in this world, but it is a huge business opportunity, and she must grasp it and make a lot of money.

When Emperor Hongyuan and a group of cabinet ministers arrived, they saw that the Ministry of Industry, which was originally very clean, was now in a mess.

At this time, I didn't report any more His Majesty's arrival or anything like that, and they all watched the explosion.

"Yu Nuan?" Emperor Hongyuan screamed, and no one seemed to answer, so he said to Tong Jian again: "Go and call Princess Yujia out." ”

Yu Nuan is still researching**, she is a layman, and she can only try little by little.

She didn't study this thing to say that she wanted to use it on the battlefield, but she wanted to use it when she went to Jishan, just in case she needed it.

In the event of an avalanche or heavy snow closing the mountain, you may still be able to use it at that time.

That's why she was in a hurry to study this thing.

A group of people in the Ministry of Engineering are physics bosses, but if you want to talk about chemistry, it's a rookie.

So a large group of people could only gather around to discuss, not only that, but Yu Nuan also found several Taoist priests, the kind who can refine pills.

At first, those people in the Ministry of Industry looked down on other Taoist priests, but they didn't expect that they were really more proficient than them in this area, so a group of people studied there.

When Tong Jian arrived, he only heard their delicate Princess Yujia knock on the table with her hand and said, "The strength of this ** is still a little worse." ”

When Tong Jian heard this, he almost stumbled, is this strength still small?

Do you want to tear up the whole palace?

"Say hello to Princess Yujia, Princess Yujia, Your Majesty has called you over."

Song Yunuan, who was immersed in thinking, didn't notice Tong Jian at all, let alone what he said.

Fortunately, Emperor Hongyuan walked in, and he really couldn't hold back his curiosity.

"What are you thinking? So focused. Emperor Hongyuan walked to Yu Nuan's side, and when everyone saw Emperor Hongyuan coming, they all knelt down and saluted.

Song Lingguo believed in Taoism, although Emperor Hongyuan was not very interested in religion, but he needed to use religious beliefs to control people's hearts, so he was still more polite to religion.

"Get up."

Yu Nuan came back to her senses and saw Emperor Hongyuan, and suddenly felt a little weak.

It seems that he almost blew up the palace.

"Father~ son, please say hello to my father." Be well-behaved, be more well-behaved, so that her father won't beat her.

Emperor Hongyuan was really ironed in his heart by her well-behaved appearance.

"What are you tossing?" Emperor Hongyuan really had no way to see anything famous from the charred black thing.

Song Yunuan rolled his eyes and said, "It's **, Erchen wants to develop **." ”

"**, you invented it again?" Emperor Hongyuan asked.

It was the first time he had heard of it.

Yu Nuan didn't dare to take this big hat, how dare she take the credit of the great man in front of her?

"Actually, father, this ** has been invented a long time ago, and Erchen has only seen it in an ancient book, saying that it was invented by Erchen, such a big hat, Erchen doesn't dare to take it." She blinked playfully, even if her fair face was dark and black, she was still strong and cute.

Emperor Hongyuan couldn't help laughing, "You girl, like a little cat." ”

Emperor Hongyuan said a word to her, and then he was thinking about the problem.

He must think more comprehensively, such as what can this ** power do?

"Does this s*** hurt?" In the past, it could only be used for fireworks for people to watch, and it was not bad, but after all, there was no practical use.

But this **, it seems to be a little different.

Yu Nuan thought for a while and said, "It's powerful, but it hurts." "But she didn't want to use it on the battlefield, because it would cause a lot of casualties.

In this era of cold weapons, the consequences of the sudden appearance of *** are a bit big.