The treasure map of the game world is produced from dungeons, and there are levels, such as D-class 10-level blue quality, D-class 15-level purple quality, and so on.

The higher the quality, the higher the chance of obtaining a valuable artifact. Depending on the treasure maps produced by different dungeons, even if they are of the same quality, there will be price differences depending on the dungeon.

However, this treasure map, which was purchased in the title deed of the dungeon, has no quality. The dungeon title deed is a different space from this game world, and there is no such thing as an information instrument professional in the dungeon title deed.

This treasure map was purchased by Ye Ming and An An in the shop in the Heavenly Trench Valley, although the treasure map in the copy title deed is not divided in quality, but there is a price, which only depends on one factor.

That's where the treasure map says. The deeper the location goes, the more expensive it becomes.

After flying about 800 meters into the air with a levitation stunt, the ball of light that explored the treasure stopped and landed on a stone wall protruding from the cliff.

Ye Ming took out the firefly lamp and looked at the nearby cliff stone wall, and found that the cliff stone wall in the high altitude was very irregular, there were many uneven places, and the protruding stone wall was like a tree growing on the mountain cliff, one here and one there, uneven.

On the cliff wall, as An An once told Ye Ming, there were some dead aquatic plants and some fish bones. On the stone wall, there are still traces of being washed by the current.

All this shows that this was once a sea area.

Ye Ming took out the treasure map and placed it on top of the exploration light ball, the treasure map sensed the location of the treasure, and the scroll-like treasure map gradually dissipated, and after a while, an old book appeared on this protruding stone wall.

The cover of the book is pale yellow, and the paper is a little damp and a little dusty. Ye Ming picked up the book and found that the book was mutilated, an ancient book that had been torn off for an unknown number of pages.

I opened the book and looked at it, the things recorded in the book were like a kind of architecture, and the words and pictures in it were all related to design, Ye Ming didn't understand design, so he couldn't understand it.

"The art of carving the sky? What do you mean? Ye Ming saw the name of the book on the first page of the book. The book is incomplete, but the information on it reads: the only remaining fragment of the art of carving the sky, the only one, the fragmented part that cannot be found in the world.

This art of carving the sky should be related to design, Ye Ming put away the book and planned to take it back to Lu Xunchuan to see, this is this guy's specialty.

Flying down from the cliff, Ye Ming took out the ancient knife and made a mark on the rock wall of the nearby cliff. This time, he planned to explore here, after all, now that the city of the Treasure Curtain Fairy Trail had just been established, Ye Ming couldn't stay in the copy title deed for a long time, so he had to go and see how the city was developing.

Leaving the Heavenly Trench Valley Hunter Path, Ye Ming returned to the Treasure Curtain Immortal Trail.

Tonight, there have been some small changes in the city. The various resources obtained from the secondary copy have been utilized, and the spatial energy crystals refined by the alchemist have come in handy, and Uncle He and Lu Xunchuan have planned three invisible orbits that can be laid in the air through the cooperation of simulation design.

Xue Dongying and more than a dozen architects worked all night, using space energy crystals to connect with the power network distributed in the air, and three aerial tracks have been built.

Three aerial tracks are at a distance of 20 meters above the city, and the craftsman gate uses wood to create more than a dozen small wooden cars for transporting goods, and the wooden cars are placed on the invisible aerial tracks, which are derived from the driving force of space energy crystallization, and now these small wooden cars are already running over the city.

The purpose of these small wooden carts is to help transport some ore and stone from the door of the dungeon into the alchemy workshop and the artisan's house, which can save the time and energy of manual transportation.

On the ground, a layer of black crystal has been paved to solve the inconvenience caused by the dampness of the ground.

"Lu Xunchuan, show you something." Ye Ming found Lu Xunchuan's tent, this guy was working on a design book.

"Brother Ye Ming, have you eaten? The chef had just come up with a new ingredient, which he found from the second copy, and it tasted good. When Lu Xunchuan saw Ye Ming, he immediately put down the book in his hand.

"I'll eat later. You look at this, and after reading it, explain it to me in the most concise language. Ye Ming gave Lu Xunchuan the book of the art of carving the sky.

"Can there be anything that my big brother Ye Ming doesn't understand?" Lu Xunchuan took the book with a smile.

"There's a specialization in the art industry. It's design, I don't know. Ye Ming also smiled.

The book is only 36 pages, most of which are some design drawings, and there are relatively few text introductions. Lu Xunchuan read the 36-page book for half an hour, looking at it, and his mouth made surprised sounds from time to time.

"Why is it gone?" Seeing page 36, Lu Xunchuan raised his head and looked at Ye Ming blankly.

"That's all. You see what is famous, tell me about it. Ye Ming asked.

"This is a book about the design of some kind of floating structure, and the pictures and texts in it are all related to design, and it is about how to build a building in the air. Brother Ye Ming, how can you have such a magical design book? As far as I know, there are only three cities that can build buildings that float in the air with the help of spatial buoyancy, two of which are B-class cities and one A-class city. ”

"The name of this book is the art of carving the sky, which means the technique of carving space, which means to float. Brother Ye Ming, you are so amazing, you didn't let me worship you in vain! There are absolutely no more than 3 designers in the world who can master this design technique! Lu Xunchuan pulled Ye Ming's arm and shook it for a while, so excited that he couldn't do it.

"Stop! Don't shake me. You're saying that you can design a floating building using the art of carving the sky described in this book? Ye Ming asked. If this is the case, then the damage to the city will be greatly reduced when the wild boss appears.

"Yes, but this is a fragment, and the art of carving the void is incomplete. I took a look, the source of this art of carving the sky to borrow space to float should be related to the ocean, but how to use the power of the ocean to make the building can be built in the air, should be recorded in the remaining pages, these 36 pages, only talk about how to build an aerial building, as well as some of the materials needed for construction, the most important part of the floating technology, only one page of introduction. Lu Xunchuan said.

"Using the role of the ocean and construction to create a floating effect? We only have a fence sea here, but the city is in the Treasure Curtain Fairyland, there is no sea, only a stream. Ye Ming said.

This book should have appeared before the Tianchi Minghai did not dry up, at that time, the Tianchi Minghai was almost as high as the sky, and the sea area was vast, so according to the design technology recorded in the art of carving the sky, could it be that there was this kind of building floating in the air with the help of the power of the sea in the sky above the Tianchi Minghai Sea before?

Who will be the people who live in the sky above the Tianchi Ming Sea?

"I'll go find Uncle He, although this book is a fragment, but if we can research something that replaces the power of the ocean to produce a floating effect based on the content of these 36 pages, then we can build a floating building!" Lu Xunchuan said excitedly.

"Uncle He and Xue Dongying are discussing problems over there, you can go." Ye Ming said.

"Well, I love the feeling of researching something new. It's so challenging, Uncle He will definitely be interested. Lu Xunchuan got up and went to Uncle He.

Ye Ming gave all the materials and equipment obtained in the hunter to the elite merchants, hoping to sell them at a good price.

Then, Ye Ming went to fight the second copy of the Treasure Curtain Cave Heaven. Now that the number of passes of the dungeon is 1388 times, Ye Ming plans to score the number of passes to 1500 times tonight, further improving the quality of the dungeon and enriching the resources in the dungeon.