This endless world

——Xuanyuan Realm, Suiyang City.

Since the Jian'an period of the Eastern Han Dynasty, Suiyang Canal has been like an artery of life, connecting the two great rivers of Huaihe River and Yellow River, and becoming an important water transport route connecting the north and the south.

Suiyang City is located at the crossroads of this lifeline. Because of its extremely important strategic location, anyone who wants to go south to Jianghuai must first seize this city; and once Suiyang is lost, Jianghuai will no longer have a place to defend, and it will be as difficult to resist as a flood. Therefore, Suiyang City has become a battleground for military strategists since ancient times. Whenever there is troubled times, the flames of war will inevitably burn here... and today's events are just a repetition of the past.

Smoke rose everywhere, and the drums of war shook the sky like thunder. The two armies confronted each other, and the iron cavalry army with flags covering the sun rolled in like a dark cloud. The soldiers guarding this city had already been ready according to the art of war. On the top of Suiyang City, the defenders held high the "Tang" battle flag, which symbolized the majesty of the Tang Dynasty, and it fluttered; while the enemy troops attacking the city waved the "Yan" banner, like a giant eagle spreading its wings, trying to tear the city apart.

At this moment, the air of killing was filled between heaven and earth, and the background of the war became more and more vivid...

"This is the world with the background of the Anshi Rebellion..."

Qi Tengyi, who had descended here, maintained the illusion spell and merged with the world, floating in the air and overlooking this city devastated by war. As an "archaeology expert", his historical knowledge is naturally far beyond that of ordinary people. How could he not see that what was happening now was the civil war that caused the Tang Dynasty to decline from prosperity? This war would overturn the fate of the entire empire, and the long river of history would also change its course...

He was not surprised that Chu Xuan and the List of Gods would send him to a plane with the Tang Dynasty as the background. After all, as a cultivator who changed from a wizard, the world that could help him improve his realm was mostly based on the history of the Celestial Empire...Just like the "Legend of Sword and Fairy IV" that the Zhongzhou team had experienced before was actually a story that took place in the Southern and Northern Dynasties, and Murong Ziying, who was familiar to the Zhongzhou team, was the descendant of the extinct Yan royal family.

Although before entering the main god space, Qi Tengyi had also dreamed of changing history and changing the world with his own strength like the protagonists of those time-travel articles, but now he stood at a higher perspective and would not be disturbed by those worldly desires. Only cultivation and becoming stronger are the real purpose of Qi Tengyi's trip. Facing the final battle with a stronger attitude is both his destiny and his responsibility. If there were no accidents, he would not even take a second look at this city...

...But now, Qi Tengyi happened to encounter that "accident".

Because both parties who appeared on the battlefield are existences that can never exist in the real world history.

The Yan army is composed of inhuman demons, black iron pagodas riding skeleton war horses, blazing magic fire Zhenni is extremely violent, and demonized griffins and huge yellow-fanged elephant demons like mountains are hovering in the sky. Their figures on the battlefield are like demons from hell, constantly churning up blazing demon smoke and fog, trampling and destroying everything they can see, just to sacrifice the blood and souls of innocent people of the Tang Dynasty to their worship of gods, the "Holy Fire King" who is constantly praised in their mouths-An Lushan.

Obviously, this plane is not the type where a few immortals with extraordinary powers hide in the world, but a "high magic world" similar to the world of Sword and Fairy, where the road to transcendence has become well-known due to the manifestation of various strange phenomena.

But what really caught Qi Tengyi's attention was the Tang army defending the city, and the mechanical chariots and mechas flying the banner of Mohism in the formation.

The giant beasts made of steel are covered with ancient decorations, and there are flags flying, just like the generals on the stage, solemn and majestic. They each have a resounding name: "Qilin" and "Yanhuang" have two cannons that can destroy the world, "Nuwa" releases the radiation of supreme light, burning everything, "Iron Dragon" bombards the enemy with a black magnetic thunder cannon, destroying several miles, and the huge three-legged mecha "Centurion" is like a moving fortress, turning into an iron wall and sweeping across the battlefield.

Even though the demons and beasts were extremely terrifying, the mechanical devices of the Mohist school were not inferior at all, and even had the upper hand in the bloody tug-of-war, perfectly resisting the offensive of the Yan army. Such a terrifying steel behemoth, anyone would say that the Mohist technology is shocking...

...Bullshit!

Looking at these familiar weapons and names, as well as the tanks and mechas that were incompatible with the worldview of cultivating immortals, and were even only disguised on the surface, Qi Tengyi couldn't help but hold his forehead with one hand.

Qi Tengyi, who had assisted Chu Xuan in studying the technology of the Red Alert world inside and out, how could he not recognize the essence of these "Mohist mechanisms"? Such a huge amount of "similarities" can no longer be explained by chance. Either a traverser with a Red Alert world system came to this world for some reason... or it was the work of the Samsara team.

Because of this, Qi Tengyi was floating in the sky in stealth, silently observing the battle between the two armies, weighing whether to intervene; while exploring the dragon veins and divine sources of this plane, analyzing the essence and composition of this world.

And with the "Source Heaven Technique" exchanged from the main god, Qi Tengyi did not spend much time to discover the abnormality of this world.

——The luck of this world is flowing towards An Lushan... or the demons.

In the battlefield, demons are always quite "lucky" and can always avoid fatal blows at critical moments; their bodies become more and more "solid", and the source power of the plane turns into an invisible force field around them, helping them to offset the incoming energy, and even the surrounding spiritual energy continuously flows into their bodies, allowing them to recover their own damage every moment in the battle...

All this is by no means a natural operation, but a kind of huge and incomprehensible "field" that constantly tampered with the foundation of this world behind the scenes, just like Qi Tengyi relied on the formation to obtain the protection of the plane consciousness and acted on behalf of the Emperor of Heaven, but it was more exaggerated than that... No, it was even more exaggerated, this was completely directly robbing the luck of heaven and earth!

"It's actually a formation...?"

Looking at the abnormality on the demon, Qi Teng was alert until this time. It was not until this time that he realized that he had been in the formation since he entered this world, so naturally "I don't know the true face of Mount Lu, just because I am in this mountain."

At the beginning, the defenders could still suppress and annihilate the demons with oversaturated firepower, but as more and more powerful demons entered the scene, the attacks with insufficient energy levels were directly annihilated by the invisible protection on the demons, and they were unscathed even if they took more attacks... For a while, as the situation on the battlefield became worse and worse, the morale of the defenders became increasingly depressed.

"Boom!"

Just as the situation on the battlefield gradually tilted, accompanied by a loud sound of shaking the earth, a giant with a hundred arms as tall as a mountain slowly walked out from the back of the demon army. Its huge body was like a giant peak that collapsed in the sky. With every step it took, the earth seemed to be wailing. Even though the defenders in the city concentrated their firepower on the giant at the first time, they could only inflict some small wounds on its body...

Even these wounds, on the contrary, increased the giant's ferocity. It was seen waving its hundred thick arms like Optimus Prime, causing a deafening sonic boom, tearing the sky and shocking the four fields. The countless fists rubbed against the atmosphere, bursting out blazing flames, as if meteorites fell from the sky, ruthlessly smashing towards Suiyang City!

"Pentaculum (Protego Pentaculum)!"

But just when everyone could only wait for destruction in despair, Qi Teng, who was hiding in the air, made a decision in an instant. Thunder and lightning transformed by the power of the five spirits flashed on his fingertips, and runes symbolizing "shield" and "protection" began to rotate rapidly. A five-pointed star shield interwoven with the power of the five spirits appeared between the giant and the city!

In an instant, the violent attack was blocked by the five-pointed barrier. Although the fist of the hundred-armed giant fell on this barrier like a violent storm, it could not shake it at all. All the impact was cleverly transformed and diverted by this mysterious barrier... Qi Tengyi created this new magic. He combined the cultivation runes with the Five Spirits Immortal Art and integrated it into the ancient magic of the Harry Potter world. He took the five spirits' power and the artistic conception of mutual generation and mutual restraint, and dissolved all attacks into nothingness.

——Privately, as a master of formations, Qi Tengyi also wanted to meet the powerful man behind the scenes who set up such a field to verify his own Taoism. Moreover, he was not a cold-blooded person. After all, he had a compassionate heart and could not bear to see the demon army wreak havoc in the Central Plains and cause the living creatures to suffer.

——Publicly, as a member of the Yuqing Sect, Qi Tengyi should stand up to subdue demons and protect the human race. It is his duty!

"...Ah!"

Neither the defenders of Suiyang nor the hundred-armed giant expected that such a strong man would appear at this time. But compared to humans, the hundred-armed giant, who relied on beast-like instincts and demon-like brutal actions, reacted first. Its whole body was filled with demonic energy, which surged like a raging tide to its fists, and it swung at Qi Tengyi again!

However, this time, Qi Tengyi just said calmly: "The divine sword has no shadow!"

The next moment, blood was spilled in the sky!

The five spiritual energies gathered and condensed into sword light, which fell like a torrential rain. Countless slashes swept down towards the hundred-armed giant, and in just a moment, all the arms of the giant were cut off. The broken arms fell like collapsed rocks, shaking the earth and raising dust. I don't know how many demon soldiers were killed...

However, even after being attacked at this level, the hundred-armed giant still did not fall down. In the next moment, it frantically absorbed the demonic energy in the surrounding environment, and the demonic energy condensed into substance, turning into a blazing black flame. It condensed into a series of flaming arms at its broken arms, and attacked Qi Tengyi more fiercely!

——As expected...

Seeing the situation of the Hundred-armed Giant, Qi Tengyi frowned slightly.

After the observation just now, Qi Tengyi already understood that the influence of this field is also divided into different levels. The more powerful the demon is, the deeper the field protection is. At the level of the Hundred-armed Giant, the protection on it is enough to continuously extract the plane spiritual energy, transform it into endless demonic energy, and constantly repair itself. It is impossible to completely destroy them by ordinary means unless you can find a way to break the protection on them. ...

As a formation cultivator, Qi Tengyi naturally understands that he should now thoroughly analyze the composition of this field and then set up a reverse rune formation to break its protection. But firstly, the city is behind him, and secondly, the mastermind behind it has not yet appeared. If he is distracted at this time

——

"Master! It's Master!"

"We are saved!"

"Master! We must win!"

Suddenly, Qi Tengyi heard a call that should not have reached his ears, which made him raise his eyebrows slightly, and glanced at Suiyang City from the corner of his eyes. He saw countless Tang soldiers in the city, some were jubilant, some were extremely excited, and some survived the disaster, all staring at the battlefield in the air... And in Qi Tengyi's sight, there were countless threads of light pouring out from them, gathering together and turning into a golden glow!

——The power of faith?

Recognizing the essence of this energy, Qi Tengyi suddenly had an idea in his mind. The young man in Taoist robes, who looked like a fairy, turned his eyes and looked at the giant with a hundred arms in front of him, who seemed like an indestructible cockroach. He stretched out his fingers and drew a huge trajectory, activating the energy of heaven and earth together with the power of faith——

"Expecto Patronum!"

An enemy composed of negative energy such as "demon energy" must naturally be dealt with with positive energy of the same level!

In just a moment, Qi Tengyi's fingertips once again gushed out dazzling silver light, and a divine bird with tree-like antlers gradually condensed in it. It was elegant and majestic, with its winding horns symbolizing endless life, and its vigorous wings carrying the desire to fly into the sky... It was the image of a common evil-repelling tomb beast in the Chu State cemetery, the incarnation of the wind god Fei Lian, the "Dragon Bird"!

The world of Harry Potter is a world that emphasizes "emotion" and "love", and as a concrete patronus spell that uses all kinds of positive emotional memories in the heart and triggers the heart, it is naturally one of the best defensive spells, and it is not an exaggeration to say that it is second to none.

Now, the guardian spirit summoned by Qi Tengyi can be called the prototype of the Nascent Soul and the Light of the Soul. It is a byproduct of his invention and research when he was studying how to construct the natal formation... At this moment, coupled with the power of faith of countless Tang army soldiers who gathered together, the "Dragon Bird" spread its wings at the moment of completion, turned into a silver comet, and rushed straight to the giant with a hundred arms!

"Shua!"

With the momentum of crushing withered and rotten, the dragon bird actually pushed the giant with a hundred arms straight into the sky, leaving only the helpless giant waving his hands in fear... and when Qi Tengyi's finger slashed from top to bottom, the dragon bird's antlers were entangled with countless runes of circling formations, condensing five-color brilliance, and then suddenly released a five-spirit aurora like a spiral spear, directly piercing the remains of the giant with pure power, and then shattering its protection and soul on which it relied for regeneration with subtle power!

So far... the Tang army, wins! (End of this chapter)