Under normal circumstances, the price of a fourth-order lower grade spirit rune was probably between five thousand and seven thousand spirit stones.

However, now that he has something to ask for, Zhou Yang is not unacceptable to Jiang Yuyan for letting him give half of his merit in exchange.

He spent 32,000 Huangshamen merit points in exchange for three fourth-order lower-grade spirit runes from Jiang Yuyan, two of which were defensive spirit runes and one was an auxiliary spirit rune used to trap the enemy.

In this way, combined with the merit points previously spent on exchanging the "Nether Blood Contract", the 90,000 merit points that Cao Wenjin gave him now only had 58,000 points left.

After changing what he wanted, Zhou Yang didn't stay in Huangshamen for long, and even rode the Gripen Beast back to the family.

"Xiao Jiu, you came back just in time, the old man has studied the sand camel cart you made in the past few days, and found that your idea is good, but it is not used in the right place. ”

"The camel cart skateboard you make now is too heavy, even if it is pulled by two sand beasts, it will take at least ten days of rest to recover. ”

"This will not work, we should use refining tools to reduce the weight of the skateboard, preferably to the point where a single sand beast can pull a car, so that we can move people quickly and effectively. ”

On Yuquan Peak, as soon as Zhou Yang came back from Huangshamen, the old patriarch Zhou Minghan pulled him to talk about the "sand camel cart".

The matter of migrating mortals is an imminent major event for the Zhou family, and Zhou Minghan is also very concerned about it.

And when Zhou Yang heard him say this, he also said with a look of surprise: "Don't hide it from your great-grandfather, your grandson also had this idea, but your grandson's knowledge is limited and he has never found a feasible way, do you have any idea when you talk about this now?"

"The old man has probably thought of two methods at present, one of which is to start from the material, when the old man traveled to the world of cultivating immortals, he knew that there was a family on the side of the Pegasus Oasis that produced a second-order wind attribute spirit gold [wind copper], the hardness of this metal is worse than that of fine iron, but it is as light as willow wood, and the elasticity and toughness are excellent, we can buy a batch of this material to be used as the main material of skateboarding. ”

"The second is to start from the refining technology, we can use wind copper as the main material, and lay a [light] ban on the skateboard to further reduce the weight of the car body. ”

Zhou Minghan slowly said the idea he came up with, then looked at Zhou Yang and said, "Your father is preparing to attack the third-order alchemist recently, so the matter of buying wind copper can only be done by the old man himself, and the family side will be handed over to you." ”

"Grandson understood. ”

Zhou Yang nodded, but he didn't argue anything about such a trivial matter, he just took out two of the three fourth-order spirit runes he had exchanged for and handed them to the old patriarch Zhou Minghan.

Zhou Minghan is a ninth-level cultivator, and he can use the fourth-order spirit rune to maximize the power of the spirit rune, and at the same time, he can still retain mana to continue fighting.

Like him, if he wanted to maximize the power of the fourth-order spirit talisman, he had to inject half of his mana into it, so he would be very passive in a battle.

After Zhou Minghan left his family and went to the Pegasus Oasis to buy wind copper, Zhou Yang temporarily lived in his cave to practice.

After a few months like this, Zhou Minghan, who went out to buy wind copper, has not returned, but Zhou Xuanhao, who has attacked the third-order alchemist in retreat, has received good news.

"How is it?Ying'er, what do you think of this furnace [Yangyuan Dan] refined for your father?The quality has reached the normal third-order level?"

On Yuquan Peak, Zhou Xuanhao and Zhou Yang, father and son, all looked at Xiao Ying with nervous expressions, while Xiao Ying stretched out two slender jade fingers and grabbed a pale white elixir and sniffed it in front of her nose.

Xiao Ying was originally cultivating hybrid grain crops in the farmland below the mountain, but it was Zhou Xuanhao who hurriedly called her to the mountain to help identify the third-order spirit pill she had refined after leaving the customs.

Originally, this kind of thing of judging whether the spirit pill he had refined had reached the third order could be done by himself and Zhou Yang.

However, after he became a pill this time, the number of pills was only two, and the color of the pill was also a little wrong, which made him have no confidence in his heart, so he had to ask Xiao Ying, a third-order alchemist, to come over and help him confirm.

"It should be no problem, the number of pills is small, this is very common for newly promoted third-order alchemists, and the daughter-in-law was the same at the beginning, as for the light color of the pill, it may be the reason why when you were refining the pill, the heat was a little too big, and the pill liquid was burned dry. ”

Xiao Ying put down the pill between her fingers, smiled slightly, and said her judgment with a smile.

And as soon as the words in her mouth were finished, before Zhou Xuanhao could speak, Zhou Yang had already looked at him and said, "Dad, look, I will say that there must be no problem, right?" Now that Ying'er has said this, you can rest assured!"

"No, I still have to verify it!"

Zhou Xuanhao's eyes flashed with determination, and he suddenly reached out and snatched the elixir from Xiao Ying's hand, and then took it directly.

"Daddy, you're ...... Aren't you fooling around!"

Zhou Yang looked at this scene and was simply angry.

How can this pill be taken indiscriminately?

If this elixir is really unqualified, wouldn't it hurt yourself?

"Zhou Lang doesn't have to be in a hurry, the elixirs for refining [Yangyuan Dan] are all mild in medicinal properties, even if there is any problem with the refining elixir, Dad has enough time to force the medicinal power out of the body. ”

Xiao Ying gently reached out to hold the Taoist monk's hand, and calmly enlightened him.

When Zhou Yang heard this, he relaxed a little.

And Zhou Xuanhao also opened his eyes after taking the elixir for about a quarter of an hour, and his eyes were full of joy and shouted: "That's right, the effect of the medicine is similar to the [Yangyuan Pill] I took before, this is indeed a real third-order elixir!"

After speaking, he looked at Zhou Yang with a smile on his face and said, "Yang'er, you are busy first, and you will go back to refine the medicinal power for your father first." ”

"My father, it's really not worrying!"

Zhou Yangwang hurriedly returned to the back of Zhou Xuanhao, who was in the cave, and smiled bitterly.

Then he looked at the Taoist priest beside him and asked, "Ying'er, how is your cultivation of hybrid crops?"

"At present, there is no major progress, Zhou Lang, are you sure that the cross-breeding of two crops of different varieties can really breed higher yielding crops?"

Xiao Yingmei's eyes flashed with doubt, but she finally took the opportunity of Zhou Yang's inquiry to ask about the doubts she was embarrassed to say these days.

She conducted many experiments according to the ideas provided by Zhou Yang, and the results showed that the cultivated crops were either inedible or the yield was many times lower than the original yield, which made her doubt Zhou Yang's hybrid crop cultivation plan in her heart, doubting whether it could really be achieved.

However, after Zhou Yang heard her questioning, he said with confidence: "I definitely have no problem with this train of thought, Ying'er, you don't have to rush, just take your time, we immortal cultivators have time to do this!"

Hearing his confident words, the suspicion in Xiao Ying's eyes suddenly disappeared, and she couldn't help but nod vigorously and said, "Well, I believe in Zhou Lang." ”

It must be difficult to breed a hybrid variety of high-yielding crop from scratch.

But Zhou Yang believed that with the various means mastered by immortal cultivators, as long as they followed this direction, they would definitely be able to succeed.

Not to mention anything else, just in terms of accelerating the growth of ordinary crops, even if he used all the means in the world in his previous life, they couldn't compare to the second-order spirit planter's "Spring Breeze and Rain Technique".

It doesn't matter if Xiao Ying has tried dozens or hundreds of times without success, when she has tried hundreds or thousands of times, Zhou Yang believes that there will definitely be good news.

Half a month later, Zhou Minghan, the old patriarch who went out to buy wind copper, finally returned to the family.

Seeing this, Zhou Yang immediately put down all his work and studied the transformation of the "sand camel cart" with Zhou Minghan.

As Zhou Minghan said, the two skateboards of the "sand camel cart" are long and wide, and there is plenty of room for the two to arrange "light" prohibitions.

After more than a dozen experiments, the two successfully placed a ban on a skateboard.

But don't think that this is even if you succeed in creating your own magic weapon, if creating your own magic weapon is so simple, then it is really any refiner can do it.

They were able to add a "light" ban to the skateboard, but in fact, they used the skateboard as a large flying sword to refine, which was just a way to change the soup without changing the medicine.

But in any case, after adding a "light" ban to skateboards, their original intention was achieved.

After the addition of the "light" ban on two skateboards made of wind copper and refined iron, the total weight of the entire "sand camel cart" plummeted to less than 2,000 catties.

However, this still could not meet the requirements of a sand beast pulling a car, so Zhou Yang cut the number of passengers in the "sand camel cart" by twenty people, and turned it into a car pulling sixty people.

In this way, with the planned output of forty "sand camel carts", it can carry 2,400 people in one trip, and it will not make the sand beast too tired, and the speed will be a third faster than before.

Solving this major matter, Zhou Yang and Zhou Minghan both breathed a sigh of relief.

"Okay, now that the means of transportation for the migrants have been prepared, after we finish participating in the [Foundation Building Conference], we can go and develop that new oasis!"

After Zhou Yang tested the performance of the newly manufactured "sand camel cart", he said the next step with a smile on his face.

When Zhou Minghan heard him say this, his eyebrows furrowed slightly, and then he groaned slightly, but he still nodded and said, "The development of the new oasis really needs to be completed as soon as possible, but before that, we have to refine the third-order puppet beast quickly." ”

"Great-grandfather is right, but refining a third-order puppet beast, I'm afraid you have to do it yourself, and I'm afraid my grandson can only give you a hand this time!"

Zhou Yang remembered that his alchemy technique was trapped in the third-order lower grade, and said with a depressed face.

With his alchemy skills, the probability of success in refining a third-order puppet beast is too low, but the Zhou family has not collected many refining materials over the years, if it is wasted too much, don't think about refining all three puppet beasts.

Seeing this, Zhou Minghan couldn't help but smile and explained: "Hehe, Xiao Jiu, don't be discouraged, you are still young, and it doesn't matter if you break through the alchemy a few years later, this time you and the old man will refine the third-order puppet beast together and accumulate some experience, which will also be a good thing for you to independently refine the third-order puppet beast in the future." ”

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