Chapter 3156: The Boundless Bottle

Chapter 3153 Bottle of Unbound

The black-haired witch said, then grabbed Xia De's sleeve and continued walking in. After passing through the dazzling array of goods, they found a loose plate embedded in the ground in the corner of the store. Door:

"A little knowledge, because the city of Wirondale served as a battle fortress during the Carsonrick War, almost every home in half of the cities, including the Upper City today, has basements, and some houses have more underground areas than above ground areas. It's big."

She motioned Xia De to enter the basement, which was much simpler than the luxurious decoration on the ground. It looks like a store warehouse, but there are also several tailor tables and sewing machines located near the entrance.

Xia De was about to comment on this place, then turned around and found that Sylvia was standing on the ground and did not come down.

"The trouble is here. Recently, the girls found that the trap door could not be opened from the underground after it was closed, but it could be opened from the ground normally. This situation only happens when there is only one person underground and stay alone for more than ten minutes In the case of this. I checked it, but found no problem, so I want you to help me with it.”

Sylvia stood above and explained, and Xia De nodded to show his understanding:

"Okay, you can close the door. If I don't come out in twenty minutes, you can help open the door from above."

The witch smiled and made a gesture of no problem, and then she really closed the door leading to the basement and then Xia De heard the sound of the lock.

"Um?"

Xia De blinked and shouted to the top:

"Silvia, are you locked?"

"Of course not, and locking is not a problem for you, right?"

The girl on the ground smiled, and Xia De stopped asking.

At this moment, when you perceive the surroundings, there is indeed no trace of elements. He touched the wall again, then checked the ceiling and floor of the basement, without any problems.

“Strong spatial perception.”

Everything around him was ordinary, so Xia De had to wait honestly for ten minutes to pass. Although he didn't like to flirt with other people's things, he still spent the rest of his time wandering around the basement.

Not only fabrics and fabrics, but also some art paintings and decorations in the warehouse that are probably spare.

Xia De even saw a strange pencil sketch painting at the end of the warehouse—

There is a hole at the bottom of a bottle, the neck of the bottle is extended and then twisted into the inside of the bottle, eventually connecting with the hole at the bottom of the bottle.

This is not a real object. The "bottle" has no "edge" and the surface will not end. A fly can fly directly from the inside of the bottle to the outside without having to pass through the surface, which means there is no distinction between inside and outside.

Perhaps in the eyes of most people in this world, this is just a very artistic and quirky painting, but outsiders recognize what this is:

"Klein bottle."

This is the name of this existence by the hometown of foreigners. Simply put, this is an object in four-dimensional space. Structures and properties cannot be fully realized in three-dimensional space, so they cannot be truly created in the material world.

A piece of paper tape is twisted and connected to each other, which can create a "Mobis ring", which has no front and reverse sides. But now the three-dimensional twisting in front of you cannot be truly reproduced, and can only be simply summarized as the bottle body does not have internal or external.

This painting was created by Sylvia because the witch's flower letter signature is in the lower right corner of the sketch. Shade felt that Sylvia seemed to have deliberately put it here for him to see it. The Witch Miss almost made the painting shine, reminding Shade that this is an important item.

However, this painting is also an ordinary object, Xia De is very sure of this.

After ten minutes, nothing strange happened in the basement. Xia De walked up the steps and took the initiative to open the basement door. After finding that it was indeed locked, he knocked on it:

"The key to the door."

With a click, the external lock fell automatically. Now he can use this magic by just touching the door without having to touch directly or the lock.

Xia De, who was curious about what was going on here, opened the door upwards and then saw that it was not the "Grassy Bufang" outside, but a slanted mud passage.

“This is a powerful spatial perception.”

After using the thunderbolt, he frowned suddenly and the thunderbolt successfully took effect, but he could not understand what the spatial structure he saw meant. What he discovered was not a complex maze or so long that he could not know the boundary passage, but he could not understand:

"It turns out that the ability of space perception and this kind of nemesis."

After a little test, Xia De drilled into the mud passage in front of him. After a not-so-long journey, the glimmer of silver moon illuminated a red brick wall at the end of the curved passage. After Xia De used fossils to open the brick wall, he saw the back of a huge painting board.

After pushing the painting board and leaving the passage, I returned to the basement of the store. The painting that stood erected by the wall just now was of course Sylvia's hand-made sketch.

The clues are too obvious, and Xia De doesn't even need to leave marks repeatedly for testing, so he understands the principle of "space circulation".

The general spatial circulation is to distort the position of the space, achieving the "head-to-tail connection" like a circle. Although the appearance looks the same this time, it should actually be the "Klein bottle left by Sylvia. ”.

Of course, the name Xia De in this world is not clear.

"So how should we crack it?"

Because the external spatial structure cannot be understood, the "Lagley's jump" cannot jump out of here; and since this is not a lock, it is just a special spatial phenomenon, the "key of the door" naturally does not work.

"Space-stabilizing halo!"

He stepped on the ground with his right foot, but nothing happened around him.

Xia De continued to think, but in fact he didn't know much about the so-called "Klein Bottle", but he had just read some theoretical knowledge.

"Klein Bottle" involves the concept of "borderless". If this is really a space constructed based on this concept, then in the superficial understanding of outsiders, the key to breaking this space is to understand the fluidity and continuity of the space in the basic understanding of the outsider. and the interaction of dimensions.

In theory, this requires the construction of a countermeasure through several key mathematical and topological concepts. But in fact, using a superficial technique is to—

No mistakes, one song, one post, one content, one reading!

"Cut the boundless space, flip and twist and re-stitch it" or "Although the space has a complex structure overall, it still looks like a normal space locally, so local mapping transformation can be performed through space folding to make the boundless The flow space of the flow space becomes a space with boundary and orientation.”

Of course, although Xia De knew the theory, he could not do such a complicated operation.

The sound of the flute sounded, and the red butterflies emerged from the void. The butterfly group surrounded Xia Defei for a week before landing on the ground and turned into two sisters holding hands:

"Sir, you really think of us. Tips - the witch said it in advance, you can only ask us for help once tonight!"

Grace said with a smile, not at all surprised by being summoned, and the power of the selected person in the space can obviously penetrate the special space Xia De is in at will.

Helen, in black dress, reached out to hold Xia De's hand and asked with a smile:

"Sir, do you need us to help you escape from here?"

Xia De shook his head, but he already knew that this time it was indeed Sylvia's own work, not "trouble":

"Don't need to take me out directly. Can you do space cutting, then twist the space and reshape it?"

He pointed to the sketch behind him and explained in detail the current spatial environment to the two sisters. Grace and Helen listened with a smile, then nodded quickly and said together:

"You pass!"

Grace took out a box from somewhere and handed it to Xiade, then pointed to the direction of the basement door:

"The space has been restored, sir, now you can leave, have a good time tonight!"

Then they turned into butterflies again and disappeared after surrounding Xia De. When Xia De opened the box in his hand, he found that it was a piece of silk cloth, which recorded a complex unique ceremony in black ink:

[Space Ritual·Bottle of Unbounded: Construct a unique circular space. If the structure of the loop space cannot be understood, it is impossible to leave the loop by the usual way of breaking the loop space. 】

The silk cloth is densely recorded all the details, design ideas and ideas of the ceremony, which seems to have been created by Sylvia himself. If she is given a while, she might be able to directly turn the ritual into her own magic and finally create a unique space mystery lock:

"It's really amazing."

The silk cloth in Xia De's hand can be regarded as Sylvia's hard work. This precious knowledge can only be taught even if the apprentice takes the exam, and Sylvia gave it to Xia De easily:

"Is this a pass-through reward?"

After he put away the silk cloth, he successfully returned to the ground part of the "Green Bufang" from the basement entrance.

Although the lights were still on in the store at this time, Sylvia was no longer here, but some of the goods were emptied, and a dressing doll in a gorgeous lady's dress stood in the back of the store selling private fabrics.

As soon as Xia De showed up, the black orb in the doll's hand hit Xia De. Xia De instinctively raised his hand to block it, and then felt that he blocked a ball, and it was not very powerful.

The ball immediately rebounded towards the doll wax figure after touching his palm. After the shield with a complex golden spiral line flashed past, the "ball" bounced back to Xia De again. This time he still chose to block it with his hands. , and then it was obvious that the power of the ball had increased a lot.

The "skin ball" rebounded back to the wax figure again. After touching the golden spiral shield flashing in front of the wax figure for the second time, the "skin ball" that bounced for the third time was so powerful that Xia De felt a little pain.