In the summer of the twelfth year of Zhenguan, Tubo attacked Dangxiang and Bailan Zhuqiang.

Although the strength of these small countries is very weak, the victory of the Tubo people still makes the Tang Dynasty more vigilant. After discussing this matter at the court meeting, Li Shimin suddenly remembered what his brother had said not long ago.

So on a whim for a while, Li Yuanjia could only run into the palace once.

No way, the emperor is so awesome in this year, Li Shimin said casually, you don't need to go out and feel the heat wave outside, just sit in your study and wait. And Li Yuanjia had to dress neatly, and then ran from Shengyefang to Daxing Palace under the sun, in order to answer a few questions from the emperor......

"Alas, it's better to stay in Luzhou!"

On the way back from the palace, Li Yuanjia remembered his life as an emperor in Luzhou, and couldn't help but complain.

If he knew what this kid was thinking at this time, Li Shimin would definitely immediately announce that he would enter the palace again, and then give him twenty or thirty big boards to refresh himself!

Is this annoying?

Fang Xuanling, Wei Zheng and others will inevitably wait outside the palace gate every day as long as the drum of Chengtianmen sounds, and they have been insisting on it for more than ten years. This kid doesn't have to go to the court on weekdays now, and the title of Yongzhou Mu is also empty, so he doesn't care about anything at all, and he feels troublesome when he obeys orders and enters the second palace?

Definitely worth beating!

Fortunately, the emperor was an ordinary person after all, and he couldn't hear Li Yuanjia's complaints, so he was able to return to his palace safely.

When he got home, he poured a bowl of cold white boil, and then chewed an ice cube to remove the heat, and Li Yuanjia could be regarded as recovering his spirits.

"It's a pity, it's a pity!"

Throwing the last small piece of ice into his mouth, Li Yuanjia subconsciously said pity.

In today's Han Wangfu, this ice cube has become a daily commodity.

Although Han Shan and the others did not find much saltpeter, and making ice cubes was by no means as simple as written, it was no problem to supply Li Yuanjia and Fang Fengzhu for them to use.

It's just that the cost is too high and it is not easy to manufacture, which can be regarded as limiting the use of ice cubes.

Ordinary people can't afford it at all, and as for those who can afford it, such as the emperor and many concubines, as well as the bigwigs in Chang'an City, many of them have ice cellars at home, and the demand for this thing is not great......

"King, what's the pity?"

Just when Li Yuanjia was secretly thinking about whether it was possible for people to collect more saltpeter and use it as an enlightenment of chemistry, a gentle voice suddenly came from his ears.

Turning his head, he saw that it was the princess Fang Fengzhu who came.

Li Yuanjia naturally wouldn't discuss the relationship between saltpeter ice making and chemistry with her, because for Fang Fengzhu and Han Shan, this is nothing more than snow in winter and hot in summer, as long as you understand the reason, there is no need to figure out the reason. At least until he thinks it clearly, Li Yuanjia is not interested in grinding with them, because it doesn't make sense.

So after smiling, Li Yuanjia took the princess's little hand: "When I first entered the palace, Your Majesty asked about the tea bricks and spirits, and ordered me to find someone to sell them to Tubo as soon as possible...... It's just that I've been thinking about the Turks in the north before, and I haven't found the merchants on the Tibetan side, so it's a pity. ”

"The business of tea bricks and spirits? Your Majesty personally asked? ”

After listening to Li Yuanjia's words, Fang Fengzhu was naturally stunned.

"Hmm."

Nodding slightly, Li Yuanjia didn't want to say anything more about it, so he smiled slightly and asked, "Fengzhu, is there anything wrong with me?" ”

Look at the time, now should be the time for Fang Fengzhu to study, and I am afraid that there is something wrong with Li Yuanjia.

Sure enough, Fang Fengzhu immediately diverted his attention, and immediately nodded: "King, King Xu sent someone to send a letter, as well as a dozen large boxes, saying that they are gifts for you!" You didn't come back, and we didn't dare to open it without permission...... Now, everything is kept in the small courtyard next to it. ”

"King Xu...... Spirit? ”

Hearing his previous title, Li Yuanjia was stunned, and immediately reacted randomly, and immediately stood up in surprise.

Xu Wang Li Lingkui, Li Yuanjia's half-brother.

Originally, after Li Yuan died in the ninth year of Zhenguan, Li Shimin would bring his younger brothers to a big rotation of titles and fiefs. But for some special reasons, Li Yuanjia came to Chang'an to replace his sixth brother Li Yuanjing and became the Mu of Yongzhou and the King of Han; And Li Lingkui took over his title of King Xu and went to Luzhou as an assassin.

There is no doubt that this must have been done deliberately by Li Shimin.

However, Li Yuanjia is still very happy about this, after all, he was not idle in the past few years in Luzhou, leaving a complete sewer and sanitation system, as well as a paper workshop and tens of thousands of acres of land. If these things are handed over to others, Li Yuanjia will not be able to rest assured, but if they are handed over to his brother Li Lingkui, who has been very close to him since he was a child, there will be no problem.

Since Li Lingkui went to Luzhou, the two have never stopped exchanging letters.

Almost every month, Li Yuanjia has to write a letter to his younger brother, and Li Lingkui will also write a letter back, telling his brother about his current situation and the situation of those things left by Li Yuanjia. It's just that in addition to the exchange of letters, Li Lingkui hasn't sent anything to Chang'an City for a long time, so after listening to Fang Fengzhu's words, Li Yuanjia was surprised and quite surprised.

What will it be?

Luzhou's local souvenirs? Or is it the latest new product in the paper workshop? Or is it that Li Lingkui, who was deeply influenced by Li Yuanjia, made something new by himself?

If that's the case, Li Yuanjia will definitely not find it strange.

After all, in addition to leaving countless good things for his younger brother, Li Yuanjia also sent him several craftsmen, and usually when he exchanged letters, he always told Li Lingkui about some things in his workshop, intentionally or unintentionally, and subtly exerted his influence on him......

"No, probably not."

After a few thoughts flashed through his mind, Li Yuanjia finally took back the thoughts that had been diverged, and shook his head with a wry smile.

It's a good idea, but it's too unrealistic.

If it is really that easy, then Li Yuanjia will not have to rack his brains in order to cultivate talents.

At this time, Fang Fengzhu glanced at him strangely and asked in a low voice, "King, do you want to go and see?" According to the visitor, King Xu attached great importance to these gifts and asked them to be sent to Chang'an as quickly as possible. ”

"Oh? Hehe, then go check it out now. ”

With a slight movement in his heart, Li Yuanjia nodded and smiled.

The two came to the small courtyard next to them together, and after accepting the big gifts from the people sent by King Xu, Li Yuanjia asked them to open the dozen or so big boxes on the ground. Then after seeing the contents of the box, the face of King Han, who was originally very calm, suddenly changed, as if he had seen gold all over the ground, and his two eyes instantly widened to the extreme!