The list of materials issued by Sun Biyun's master and apprentice made Zhao Ran want to die, not to mention anything else, just take out a demand of 10,000 catties of fine gold, and Zhao Ran would not be able to fulfill it.

There is a fine gold mine in the Song Domain, which is located in the swamp of the Yuyang Immortals, but it will be able to provide 100 catties to Dajun Mountain a year. When Lou Guan proposed to the Jade Emperor Pavilion, there were only sixty-six catties in the list of dowry gifts for Zhao Liniang, which shows the preciousness of this thing.

10,000 catties, it takes Dajun Mountain to accumulate for a hundred years, even if it is collected from other places, this is a terrifying number, even if it can be collected, Zhao Ran can't afford it.

What's more, there are all kinds of precious materials such as Mithril and Ziyun copper in the back, which are often measured in 10,000 catties.

After thinking about it carefully, Zhao Ran asked Sun Biyun about the method of refining this total of fifty-three bridge piers, and only after asking was he relieved.

"Sun Zhenren, the predecessors of the four seas, the predecessors of the nine directions, I'm afraid that the solid bridge pier as a whole is not needed, I can't afford to build it like this, can we refine the hollow one? It's like refining the magic weapon palace, it's empty?"

"The bridge pier is not the same as the magic weapon hall, how can it withstand such a huge amount of power when it is empty?"

"I have an idea for this, let's refine a hollow pier with a wall thickness of one foot, and after driving into the heart of the river, pour green bricks, gravel, and sediment into it, and use these materials to enrich the hollow, and the bearing effect is not reduced much, right?"

Sun Biyun and the two disciples bowed their heads and discussed, and finally said to Zhao Ran regretfully: "In this case, as long as there is a great monk of the United Dao, the bridge pier can be destroyed." ”

Zhao Ran hurriedly asked: "If you don't think about it, what about refining the Void Realm High Cultivator?"

Sun Biyun shook his head: "It's hard to say, it also depends on the use of formations and magic weapons, generally speaking, at least five or six refining voids can make a move, and if they cooperate well, they can also destroy the bridge pier." ”

Zhao Ran breathed a sigh of relief: "It's okay, it's acceptable." ”

Sun Biyun said: "Then it's not a millennium project, didn't you say that you want to build a great millennium project? ”

Zhao Ran hurriedly asked, "How many years can it last?"

Sun Biyun and the two disciples discussed for a moment and replied to Zhao Ran: "Five hundred years, at most eight hundred years, and it will be maintained every hundred years." ”

Zhao Ran raised his hand: "No problem! Five hundred years is five hundred years, that's enough!"

So, Sun Biyun and his disciples started to design again, and re-pulled the list according to the refining plan of the hollow pier, which took time.

Leaving Zhou Keli and Ling Congyun here to do chores, Zhao Ran came out of the Great Sage Nanyan Palace and went to find Chi Songzi and Aunt Long. These two belong to the Jingle Palace inheritance, one of the seventeen veins of the Wudang Hidden Immortal School, at the northern foot of Wudang Mountain.

Jingle Palace is a big vein, and the palace is heavy - in fact, Sun Biyun is there, and the regulations of all palaces and halls in Wudang Mountain are very grand. Zhao Ran thought about it for a moment, whether to mobilize the various veins of the Hidden Immortal Sect, and simply take out the temple and recast the counting ball, the Hidden Immortal Hidden Immortal, it should be a bit of a Hidden Immortal. But I still endured it, it may not be ...... to do it like this Well, I can't say yes.

Chi Songzi and Granny Long Gu did not live in the palace, they used to live in a thatched hut on the hillside behind the Jingle Palace.

When Zhao Ran came to this thatched hut, it was dinner time, and he saw the smoke curling, the roosters and dogs barking, which was a good breath of life.

In the thatched house next to it, there was a sudden crackling sound of dishes stir-frying, and a fragrance overflowed, and Su Chuanyao in the cart couldn't help but drool.

Chi Songzi turned back from the mountain road with a hoe, grabbed a handful of potatoes in his hand, and said to Zhao Ran: "Zhiran sit down for a while, and eat together when the meal is ready." ”

Zhao Ran was not polite, and visited this thatched house in a wheelchair: alchemy thatched house, refining thatched house, refining charm thatched house, thatched study, thatched bedroom, chicken pen, vegetable field, flower garden, orchard......

After a circle, the voice of the red pine nut came: "It's time to eat." ”

Su Chuanyao pushed Zhao Ran to follow the sound, and on the side of an open-air earthen platform that overlooked the green mountains, he saw the red pine nuts sitting at the stone table, and Aunt Long's mother-in-law wearing an apron.

There were already five or six sea bowls on the table, all of which were freshly cooked, such as eight-treasure vegetarian duck and bracken tofu, all of which were steaming with a hot aroma. Aunt Long's mother-in-law opened the lid of the bamboo basket, added two large bowls of rice to Zhao Ran and Su Chuanyao, and greeted: "I haven't eaten for a few months, I've been thinking about cooking a good meal, this dead old man always says that he has no appetite, if it weren't for Zhiran to come, I wouldn't have this mouthful." ”

Zhao Ran laughed, picked up the dishes and chopsticks and buried his head in his mouth, Su Chuan Yao took a small bite and stuffed a ball of rice into his mouth, and suddenly felt a spiritual power into the meridians of his limbs, and his whole body was extremely comfortable, and he was stunned on the spot.

Zhao Ran urged her: "Sichuan medicine, eat this eight-treasure duck quickly, if you don't eat it again, the predecessors of Chi Songzi won't leave it for you, you have to ......grab it yourself."

After eating, Su Chuanyao accompanied Aunt Long's mother-in-law to clean up the dishes and chopsticks, and Chi Songzi greeted Zhao Ran: "Come on, let's go fishing." ”

Zhao Ran accompanied Chi Songzi to a clearing outside the thatched hut, where there was a pond with a square circle, and aquatic plants grew in the pond, and swimming fish could be faintly seen floating in the water in the aquatic plants.

Zhao Ran took out a fishing rod made of wicker from Mochou Lake from his wrench, and was about to hang into the pond, when he saw Chi Songzi staring at him nervously, and wondered: "Seniors don't get off the rod? ”

Chi Songzi "eh" a few times, took out the fishing rod, but was still staring at Zhao Ran, Zhao Ran was inexplicable, and threw the fishing rod down first......

"Huh?" the hook made of willow branches slammed into the pond with a "snap......

Suddenly saw Chi Songzi holding his stomach and laughing wildly beside him, laughing so much that he couldn't breathe.

Zhao Ran blinked vigorously, and tried to step on it, where is there a pond, it's just a painting!

Zhao Ran looked at Chi Songzi speechlessly, and couldn't help rolling his eyes when he saw that Chi Songzi was already rolling on the ground with laughter.

After a long time, Chi Songzi stopped laughing and said proudly: "What?

Zhao Ran nodded in approval: "Amazing! The seniors actually figured this out, and it didn't seem to use the slightest phantom array technique." ”

Chi Songzi said: ""Junshan Notes" has recently advocated realistic painting, I saw a lot of the above paintings some time ago, and I want to combine this realistic painting with perspective......

Zhao Ran nodded while speaking: "This painting of the old-timers can be called a three-dimensional painting. ”

"Which three-dimensional?"

"If the line composition is called one-dimensional, it means that there is length without width and height, and if you add width to form a surface, that is, it is two-dimensional, and then add a space with a three-dimensional staggered height, that is, it is three-dimensional. ”

"Is there a four-dimensional?"

"Add time, maybe it's four-dimensional. ”

"Is there a five-dimensional?"

"Yes, it was an unimaginable scene, and you can think of it in symmetrical space......"

"What about zero-dimensional?

"The younger generation thinks that it is an infinitesimal point ....."

At sunset, Chi Songzi and Zhao Ran discussed the way of composition by the house, and the oblique figure became longer and longer......