In a well at the bottom of a courtyard in the western part of Wucheng Castle, Teng Qing Shan is here.

  "Zhao Dan Chen, you want to catch me? Go back and practice for another fifty years!" After shouting this, Teng Qing Shan immediately burrowed into the mud again, continuing his advance.

  ……

  In the muddy ground, Teng Qing Shan is no longer in a hurry. However, at this moment, the 'bullet-type light shield' on Teng Qing Shan's body surface has lost its spiral shape.

  "Through the Innate True Yuan, change the body shape! It seems it's not what I imagined." Teng Qing Shan was very clear that if the Innate True Yuan light shield was only maintained, the consumption of Innate True Yuan wouldn't be much. Of course, the Innate True Yuan light shield had to be close to the body and couldn't leave too far away.

  The farther away, the more true yuan is consumed.

  The light shield can't be too big either, the bigger it is, the more it consumes! Actually, Teng Qing Shan had already guessed these things.

  But Teng Qing Shan didn't expect one thing ——

  "I just wanted to use the thread structure, borrowing the power of the mud. But unexpectedly, consuming true yuan is even more!" Teng Qing Shan originally wanted to design the surface light cover into a 'drill'. But since it's a 'drill', once it breaks through the soil, the threads will also rotate!

  Although it's a borrowed force rotation, however—

  This thread is the shape transformed from the 'Prenatal True Yuan'. When it's still, Teng Qing Shan can maintain its existence with ease. However, when this thread starts to rotate violently, Teng Qing Shan has to consume an astonishing amount of Prenatal True Yuan to maintain the thread and prevent it from dispersing. This forces Teng Qing Shan to disperse the 'Thread' structure.

  Revert to a simple streamlined bullet shape.

  "This innate true yuan is changing, I need to try it out carefully and find its strengths and weaknesses."

  Teng Qing Shan understood several things——

  1. The smaller the light shield is, the less energy it consumes!

  2. The closer the light shield is to the body, the less true yuan it consumes!

  3. Objects formed by innate true yuan are best fixed and unchanged. Once they move violently, the consumption of innate true yuan will immediately increase! For example, this electric drill, when the screw thread is activated, the consumption of true yuan immediately surges.

  And when the 'object' composed of innate true yuan moves, it is also divided into two situations. One is that it moves due to external forces. For example, this screw thread is mud squeezed and moved. For example, when Teng Qing Mountain turned into a fish, the fish tail was swung by Teng Qing Mountain through physical strength, swinging its legs up and down, and the fish tail swung. The main driving force is leg strength. In this situation - the consumption of innate true yuan is quite astonishing. But it can barely be maintained!

  Another situation, such as when transforming into a fish, swinging the tail of the fish does not rely on the strength of the legs. It is purely controlled by the innate true yuan. For example, this humanoid electric drill, if it were to be installed at the feet and turned backwards to form a spiral propeller, allowing the spiral propeller to rotate and generate impact force... rather than relying on Teng Qing Shan's leg strength... This kind of violent movement of the innate true yuan outside the body is extremely frightening! It can be said that within a few breaths, it would be possible to completely exhaust Teng Qing Shan's innate true yuan.

  "The first and second points, I already knew. This third point, the light shield outside the body is best fixed in place! If it must be moved, it's better to use physical strength rather than true yuan. If true yuan is used to drive it, at this rate of consumption, even a strong pre-heavenly golden elixir cultivator would exhaust their energy in just a short time."

  Hong Qingshan sighed endlessly!

  For innate strongmen, they are very economical with their innate true yuan. Because once the innate true yuan is exhausted, that is when the innate golden elixir strongman appears. Without innate true yuan, one can only eliminate air resistance and become an ordinary person. A sword swung out with a force of one or two thousand catties, the air resistance is not great. Even if eliminated, the increase in strength is not much.

  So, without innate true yuan, the innately gifted cultivators are just ordinary people!

  "Last time, I transformed into a fish with my body's light cover! The speed was extremely fast, and in the time it takes to drink a cup of tea, I arrived at the Bottomless Cave. However, back then, my innate True Yuan was almost depleted." Teng Qing Shan thought to himself, "But just maintaining the light cover, keeping it fixed and unchanging, even if I maintained it for an entire hour, nothing would happen."

  Teng Qing Shan was very clear ——

  This light shield change is very important for myself and must be thoroughly studied.

  "I don't care if I turn into a fish or a bullet. The main driving force is still my legs!" Teng Qing Shan revealed a hint of a smile, "With my control over my body, my muscles can rest at any time, and my endurance can last longer than those innate strongmen!"

  Facing ten thousand heavily armed soldiers!

  Even if it's a congenital Jindan strongman, if he doesn't escape, he will still be exhausted to death.

  Teng Qing Shan, however, was able to kill them one by one, taking a bit more time, and completely wipe out the people.

  This is the difference between congenital true yuan and physical strength!

  "I can now turn into a fish in water! Although it's only for a short time, I can still swim tens of miles with the effort of lifting a teacup."

  "If in the ground mud, or rock layer. Turn into bullet shape, with 'wheel gun gun tip' as the bullet tip to break through the mud and rocks. Relying on both legs for support, it can also last for a long time!"

  "If I jump off a cliff, I'll spread my arms wide and form a pair of 'fake wings' to slow down the descent! That way, no matter how high the mountain is, I dare to jump!"

  "If you want to fly like a bird..."

  Teng Qing Shan furrowed his brow... Flying, indeed had its difficulties! Even if the True Origin surrounded both hands, forming two 'wings'. But... who has ever seen anyone fly by just putting wings on their hands? If that were possible, everyone in modern society would be able to fly.

  "There are many kinds of birds in the sky, some can fly and fly very fast. But some birds can only barely hover. And then there are ducks and geese that also have wings, but they simply cannot fly!"

  Teng Qing Shan was thinking carefully.

  However, Teng Qing Shan discovered - having wings doesn't necessarily mean you can fly!

  "Even if it were an airplane from a previous life, its wings would only be for balance. Never seen before, what kind of flying device can fly by flapping its wings like a bird." Tan Qing Shan suddenly realized that flying wasn't so simple. If it were simple, having wings and powerful propulsion would be enough to fly.

  Why is there no flying machine with flapping wings?

  "It seems I want to fly, it's very difficult!"

  Hong Qingshan was deep in thought.

  "First, a person in the air must at least be horizontal and maintain a level position. This is what is meant by maintaining balance! However, it's very difficult for the human body to maintain its center of gravity like a bird does in mid-air."

  "When birds fly, the flapping of their wings creates lift when they flap downwards, but creates a downward force when they flap upwards! To fly, the upward force must be greater than the downward force! So, fixed wings are absolutely not feasible. The 'fixed' wings formed by my innate true yuan are definitely not workable."

  Hong Qingshan thought of this and shook his head.

  "There's also the weight of the human body, my own weight, and the weight of the weapons! It's so heavy, wanting to ascend requires a huge amount of energy. I'm afraid it would need enormous wings! However, such large wings would consume even more of one's innate true yuan!"

  ……

  After just a moment of consideration, Teng Qing Shan shook his head.

  With just a few difficult problems discovered by himself, Tun Qing Shan was completely stumped! The single wing that had formed needed to constantly flex and stretch on its own, which would consume his true yuan. In just a few breaths, his true yuan would be depleted. Moreover, forming the 'Great Wing', the energy required would be astonishing.

  "It's estimated that flying is still a long way off! After all, in the previous world, even nuclear weapons were created. But as for flying by flapping wings, I've never heard of it." Qing Shan sighed.

  I am ahead of others in thought, just like the nine continents are larger than other lands.

  But as for genuine theoretical knowledge, it is impossible to compare with scientists from previous societies.

  Actually, Teng Qing Shan did not know that birds could fly, it's not just the things he thought on the surface, in fact, it has a lot to do with the internal structure of the bird itself, respiratory system and so on, very complex. Even wings... are not formed by Teng Qing Shan using Xiantian Zhenyuan to create a fixed shape.

  Flying birds have extremely complex wing structures.

  "This time, I was able to escape with my life. It's all thanks to the First Heaven True Yuan changing its shape. Flight is still impossible! But at least in water, mud, and mountain cliffs, my survival abilities have increased greatly." Teng Qing Shan was still very confident, "I need to think carefully, maybe there are other ways to utilize it!"

  "But just being faster than them in the muddy terrain would allow me to easily shake off their pursuit."

  ******

  On the twenty-eighth of the twelfth lunar month, something happened in Wucheng. It spread with astonishing speed.

  Note that Teng Qing Shan's two loud shouts were ——

  "Haha, you riffraff from Qinghu Island, do you think you can catch me, Qing Shan?"

  "Zhao Danchen, and the other three should be the law enforcement elders of Yu Huangmen... Haha, Zhao Danchen, you want to catch me? Go back and practice for another fifty years."

  These two shouts were heard by everyone in Wucheng. The Yu Huang Gate and the Qinghu Island couldn't cover it up even if they wanted to!

  Teng Qing Shan, a genius who betrayed and returned to the Yuan Zong sect. After severely defeating the Qing Hu Island and various other sects in the Da Yan Mountain, the Qing Hu Island is now frantically hunting down Teng Qing Shan... This has already caused widespread discussion among people all over the world. At just 17 years old, he had already formed a Heaven and Earth Furnace, which is even more astonishing.

  But no one thought ——

  Qinghu Island's 'Zhao Dan Chen' and the three law enforcement elders of Yu Huang Men joined forces, and in Wu City, they even let Teng Qing Shan escape!

  This is utterly ridiculous!

  Good news never goes beyond the gate, bad news travels a thousand miles!

  The embarrassing thing about 'Yu Huang Men' and 'Qing Hu Island' is that it spreads even faster than the so-called 'bad news'.

  ……

  The center of the world, one of the two major royal cities - Yu City!

  Although Qinwang City is also a royal city, because it is located in the northwest of Yongzhou, plus the 3,000-mile Qinling Mountains blocking the way, so there are not many people from all over the world going to Qinwang City. It's just that the locals of Yongzhou are proud of this "Qinwang City" with the largest population capacity. But actually——

  Yu State is in the center of the Nine States, and Yu City is again in the center of Yu State!

  The absolute center, making business and trade here extremely prosperous, with countless outsiders passing by every day.

  The thirtieth day of the twelfth lunar month, New Year's Eve, at noon sharp.

  "Older brother, you're wrong! Who is Teng Qing Shan? He formed his Golden Elixir at the age of 17! This time, Qing Hu Island only sent Zhao Dan Xuan, why didn't they send other powerful Golden Elixir cultivators from the island to help? From what I know, Teng Qing Shan has enough strength to kill ordinary Golden Elixir cultivators. Therefore, to kill him, one must be a strong Golden Elixir cultivator!" A thin old man loudly discussed in the wine tower.

  "Those three Law Enforcement Elders sent by Yu Huangmen should also be Pre-Heaven Golden Dan!"

  That thin old man hehe smiled: "This is not what I said! Outside has been circulating with a nose and eyes, saying that one of them is still the strong 'Du Xuan' of 'Tian Bang'. The four pre-heavenly golden elixirs surrounded and killed Teng Qing Shan, but instead let him escape, tsk tsk!"

  "This Tian Qing Mountain is ruthless enough, among the eight major sects in the world, which one hasn't he offended?"

  "If I'm going to offend, I'll offend thoroughly! One of these days, I can also provoke the whole world to hunt me down, and it's worth dying for! Moreover, none of the four major pre-heavenly Golden Elixirs have been able to hold back Teng Qing Shan. Who can catch him? You watch, the eight major sects will definitely not be able to catch Teng Qing Shan!"

  This year's Spring Festival was too lively.

  The news spread and everyone discussed it. The eight major sects wanted to stop it, but they couldn't. After all, the law does not blame the masses. Everyone in the world is discussing it? What can be done about it?

  Inside the corner of the wine building.

  Two middle-aged men in ordinary clothes sat there, listening to others discussing Teng Qing Shan, their faces all showing excitement. These two were the people stationed in Yu City by Gui Yuan Zong!

  "This happened on the twenty-eighth of the twelfth lunar month! Today is the second day of the New Year festival, and the news has already spread here."

  "He's too awesome!"

  The two were very excited in their hearts, because in their hearts, Mount Tengqin was forever the leader of their Yuanzong!

  "Go back and tell the adults. This news must be transmitted back to the sect as soon as possible!"

  "I don't know if the master knows, and what will happen."

  The two of them couldn't help it and immediately settled the bill, got up and rushed to their destination.

  ……

  （）