In May, the Dapeng tribe brought in several groups of slaves one after another, all of them thirty or fifty people, some of whom were born of tribal struggles, and some of them were captured by the patrol after fleeing.

Lu Qingqing did not refuse to come, and left them to fend for themselves on Qinglu Plain, only sending some food and water to the old and young women, children, and injured among them every few days - she did not intend to let these people die.

In fact, in previous years, the Dapeng tribe also had a famine, but it has never been so bad, this year before Lu gently contributed konjac eating to exacerbate the conflict, and then she intercepted and killed the eagle, led people to make a big fuss and robbed the salt, causing the chief's prestige to plummet, and now there are shifts in the past to patrol the patrol to secretly stir up trouble.

In short, the Dapeng tribe has fallen to this point, and Lu lightly has to carry the biggest pot.

At the end of May, Ershi, who had been away for twenty-five days, finally returned.

Brought back several cartloads of stones.

Black, white, red, yellow, blue, green......

The most, of course, is a whole car of alum stone, which can be used for several lifetimes.

But Lu Qing was attracted by the black stone that only occupied a small corner at first glance.

Why is it so familiar?

Lu gently suppressed his excitement, and walked over and grabbed a piece with a calm face.

A moment later—

"—groove!"

She helped her heart, and really wanted to offer her knees to the great god of crossing.

The great god is not kind to her!

All kinds of gold fingers and good things are sent to her.

What is this? What is this?

It's coal!

Lu Qing, who was too excited to make any expression, stood there gently, and Ershi, who was very excited without dishonoring his life, was a little worried: "Chief, is there something wrong with this black stone? You said that you brought back all the unusual stones, and I think this black stone is quite unusual." ”

Even if I've seen black stones before, at least I won't be able to rub them all in one hand.

Lu gently looked at her face, which was two degrees darker, touched her heart to stabilize her heartbeat, and said steadily: "You did a good job, give you a big credit." ”

Ershi smiled widely: "Don't remember, don't remember! The chief has already given it to me...... Ahem, the best stuff up. ”

I almost told my natural ability, and the chief said that he would keep it a secret for the time being.

Lu smiled lightly, and while continuing to look at the other stones, he asked, "Is it useful this time?"

Ershi knew what she was asking, his eyes suddenly lit up, and his eyebrows danced: "Yes! Yes, there have been many dangers, if it weren't for the ...... I'm afraid I've been dead many times ago, and it's very convenient to climb the mountain. ”

With its claws stuck into the mountain wall, you don't have to worry about falling off at all, and you can crawl faster than a multi-clawed worm!

"This is ......" Lu gently picked up a white stone, broke it a little and looked at it carefully, "This can't be a plaster, right?"

"What is plaster?"

"Good thing, you go and rest first, I'll look at the stones myself. ”

After sending Ershi and some others away, Lu gently lay on the stone pile without any image.

"What's this, red, is it cinnabar?"

"These two pieces of red and yellow are glued together, male yellow and female yellow, right?"

"This malachite is beautiful!"

"This, this is iron ore?!"

What the hell is going on with that colored stone tribe, there are so many kinds of ores at once? There are so many ores here that shouldn't be in one place.

Lu was slightly crazy, envious and jealous, and of course the most was surprised, coal and iron ore, and she seemed to see the shiny iron tools beckoning to her.

But this is not in a hurry, take your time, this thing is too ostentatious, and when it reaches the kingdom, she has no doubt that people can immediately overwhelm the border.

She grabbed the cast, and the first thing she thought of when she saw this was not fracture fixation, not tofu, not chalk, but—

Cement!

Although she has never DIY it herself, she vaguely knows a rough idea, it seems that it can be made with clay, quicklime, and gypsum, but it needs to be calcined at high temperature in the middle, and it seems that iron ore also needs to be added?

Lu gritted his teeth lightly, let's do it!

Mudi houses, muddy floors, potholes, muddy roads when it rains, as long as there is cement, all say goodbye.

She asked people to send all the stones into the warehouse, and then called three construction teams to come over, and blew the benefits of cement, and then explained the basic formula and the general manufacturing process, and you should study it.

More than a dozen men in the construction team were dumbfounded.

Originally, there were thirty people, but wasn't there enough manpower, and each team was gently pumped and pumped by Lu, and they were all pulled to Qinglu to manage slaves.

No, we have to get people back, the construction team has a lot of experience in dealing with dirt every day, and the thirty people get together to brainstorm maybe they will be able to toss cement for her soon.

It just so happened that the Gaoshan clan was very uneasy this month, and her attitude was clear, and it was time to give them some reassurance to prove that she was not disgusted with them.

She then transferred all the construction teams back to do research, and sent the four patrol teams that had been training hard for two months to Qingluyuan, and continued to practice, while guarding the slaves, and accepting the challenges of the slaves.

Lu gently stipulated that each slave could challenge the Patrol, one-on-one, the slave won the reward for a day's food and was full, and the Patrol's loss was deducted points.

Slaves who win seven times in a row can join the Qinglu tribe and are no longer slaves, and those who lose seven times in a row will be kicked out of the patrol.

Of course, a slave can't stare at one person and challenge the same person for seven days.

There were also slaves who wanted to escape before, just like Lu said lightly, the whole team of five people was executed, and the whistleblower really got half a pig, and was dismissed as a slave, from a slave to a caretaker.

Lu's image of speaking softly and decisively and ruthlessly penetrated into the hearts of the slaves, and also gave them hope.

So this time the slaves geared up and stared at the four patrols like wolves.

The patrol wanted to cry without tears, so they could only bite the bullet and ...... Most of them lost.

Although the slaves are losers in the Dapeng tribe, they can survive until now and dare to resist, naturally they are not really weak people, and they were gently left in Qinglu Plain by Lu for a month, hunting every day for a living (there are not many prey on Qinglu Plain, but there are many slaves, and the competition pressure is extremely high, so Lu Qing will send some food to women and children from time to time).

The four captains, the old guards, couldn't help but feel a cold sweat, in fact, they were afraid that they would also lose, but fortunately they didn't have to play.

Only seven days later, there was a row of people lined up in front of Lu Qingqing, who had won seven games in a row and had never been defeated.

There were eleven people in total, with a fierce momentum, and the humanoid killing weapon was there, and Lu lightly issued them wooden spears, gave them animal clothes to cover their bodies, and let them practice with the patrol team every day.

Watching them train aggressively and obediently, Lu couldn't help but think of the wild.