After returning to Wuliang Island with Abu 'Hua', Xu Dong inspected the island, whether it was Wuliangzong, the "Migrant Army" and the "Seed Army", they all performed their duties, and everything on the island was running normally.

He locked himself in the practice room with confidence, ignoring what was going on outside the window, and focused on his own cultivation, wanting to practice the 'mixed' Yuan Sword Formation as soon as possible, and return to the Pure Yang Palace before the summer arrived.

The cultivation was carried out under the guidance of the Holy Child, and the first step was to refine the Mang' 'Dang' crystal, he took out the four Mang' 'Dang' crystals that he 'got' back from the Wudi Kingdom, swallowed them together with a few pills, and meditated cross-legged on the ground to get his luck out.

Xu Dong practiced day and night, and he didn't know how long he had been practicing, but on this day he used his internal vision technique to check, but he saw that the four mang' 'dang' crystals were still there, but a faint layer of blue light appeared on them.

"Alas. ”

He let out a long sigh, opened his eyes after his eyelids twitched a few times, and then subconsciously glanced around, a trace of doubt and confusion swept across his face like a cloud.

"Why is it so difficult to refine, is there a problem in the method, is there any way to improve the efficacy. He blinked and spoke to himself.

The Holy Infant hadn't shown up for a few days, Xu Dong only had the trick of comprehending cultivation by himself, and he had thought about refining in the Taishi Ding, but the Holy Infant had 'handed over' before, and this method was impossible to work.

The Mang'dang Crystal was refined by the Fan Bone Immortal with his lifelong 'refinement' power, and the refining time was more than 3,800 years, so it was impossible for any magic weapon to accelerate its refining, and even the magic weapon above the spirit treasure level was invalid.

When Mang'dang's Mountain Abu 'Flower' was blocked by the ice room, Xu Dong also saw the evil of Mang'dang' Jing, he used all kinds of exercises and magic weapons one by one, but this thing was indestructible, and finally smashed it with a fan bone sword.

The fan bone sword and the mang'dang' crystal are both from the same person's hand, using the fan-bone sword to attack the mang'dang' crystal is like attacking the son's shield with the spear of the son, the fan-bone immortal designed the spear to be harder than the shield, so that the fan-bone sword can shatter the mang' 'dang' crystal.

So, can you use the Fan Bone Sword to help him refine the Mang'dang Crystal, and then attack the Son's Shield with the Spear of the Son?

Obviously, this process could not be implemented, because the Mang'dang Crystal had already entered his body, and he wanted to convert it into a part of his body's energy, and he couldn't swallow the Fan Bone Sword into his body.

If you want to convert the Mangdang crystal into a part of the energy of your body, and then use this energy to accelerate the flying speed of the flying sword, this is a pure energy transformation process, and this transformation process can only be completed in your own body.

When Xu Dong was thinking about it, a flash of inspiration suddenly flashed in his mind, and something appeared in front of him, like a lightning bolt illuminating a darkness in an instant, allowing him to see the scene in the darkness.

Accelerating the energy conversion process in the body can be completed by increasing the body's functions, overcoming the strong with the strong, overcoming the rigid with the strong, only the diamond diamond can do the porcelain work, and only the strong body can better cultivate.

This discovery made him so excited that he didn't have time to think about it, so he eagerly rummaged through the treasure bag, and in a few moments he took out three heavy 'jade' boxes from the treasure bag.

When Chief Moza gave him the three 'jade' boxes, he felt that these three 'jade' boxes were very heavy, and when he opened the first 'jade' box and saw that there was only gas inside, he wondered why this gas had such a heavy mass.

"It is the 'chaotic' qi of Pangu when he created the heavens and the earth, so the density of ordinary qi is ten million times greater, and it is the mother of all the qi of the great wilderness. ”

Now, he opened the box and inhaled a breath of 'chaotic' qi, and his mind suddenly became extraordinarily clear, this 'chaotic' qi could make the mud kneader come alive, and after being inhaled by him, it quickly 'stimulated' his brain cells.

He opened the other two boxes, which contained essence and blood, and without hesitation, he sucked the contents of each of them into himself.

Xu Dong, who inhaled the "three treasures" of 'essence', qi, and blood into his body, was changing sharply in his body, and he became extremely strong in an instant, as if he had suddenly changed a person.

While Xu Dong experienced this rapid increase in physical fitness, a melody sounded in his heart, which traveled from the barbaric era hundreds of millions of years ago and reverberated in his heart for a long time.

"These three 'jade' boxes contain the 'three treasures' of living beings, 'essence', qi, and blood, and the 'creatures' I am talking about here refer to the ancient humans in this heaven and earth, who were the earliest creatures after the opening of the world. ”

"Why did the upper realm leave these three things to you Supreme Immortal Monarch, that is, let you use these three things to save this oldest nation, help correct and dispel evil, and make this ancient realm clear. ”

"Knock knock, knock knock. ”

"Knock knock. ”

Xu Dong heard the rums of war in his body roaring, and an unusual war began, like a strong army conquering a castle, the "three treasures" of ancient human beings' 'essence', qi and blood were conquering Mang's 'dang' crystal.

It took more than 3,800 years for the Fan Bone Immortals to refine the Mang'dang' crystal, and the "Three Treasures" of ancient humans' 'essence', qi, and blood have been passed down for hundreds of millions of years.

More than half an hour later, Xu Dong's body slowly fell silent, a war had ended, and everything had settled......

He used the internal vision technique to check his body, and the four mang's 'dang' crystals had long since ceased to exist, turning into gas and being absorbed by Xu Dong, or completely swallowed by his body, and converted into his own energy.

"Okay, okay, finally you can figure it out on your own, the shaft can be made. The Holy Child suddenly appeared and clapped his little slap and shouted.

"Next, you release the three sword spirit bodies stored in the Desolate Star Sea, let them complete the process of devouring each other, and then you can form a 'mixed' Yuan Sword Formation. ”

Under the prompting of the Holy Child, Xu Dong used the internal vision technique to control the three bodies of the sword spirit, and bundles of sword light, wisps of sword qi, and swords rushed out of the sea of stars like a flock of sheep out of the slaughter.

The material of the Mang'dang' crystal is inherently full of 'nature', and the newly refined Mang'dang' crystal qi is ten thousand times more active than the solid Mang' 'Dang' crystal, and at this moment, it is like a black 'hole' in the universe that swallows the three bodies of the sword spirit.

In fact, in this devouring battle, Mang'dang' crystal qi was not the main body, so after it devoured the sword spirit three-body, it was quickly countered by the sword spirit three-body, or it was fused into the sword spirit three-body.

Mang'dang' crystal gas is just a kind of energy, the sword spirit three-body can speed up quickly with this energy, the sword spirit three-body itself is the speed of light, and it is hundreds of thousands of times faster than before when it is so accelerated by mang's 'dang' crystal qi.

Xu Dong closed his eyes, and a blue glow appeared on his eyelids, which was a sign that the Mang 'Dang' crystal qi had escaped from his body, that is, the Mang 'Dang' crystal qi in his body had been excessive, and he was seeking a mechanism for the outbreak.

He combined the three bodies of the sword spirit to form a small flying sword flying in the air, these small flying swords were originally golden, but at this time, they were wrapped in a layer of blue mang.

"Whoosh. ”

Streams of blue light were faster than the speed of lightning, and the speed of the little flying sword's flight was not only invisible, but there was no instrument that could detect it, but the hissing sound of it breaking through the air could be heard.

Strands of blue light were faster than lightning flashes, and the speed of the little flying sword's flight was not only invisible, but no instrument could detect it, but its hissing sound could be heard.

After Xiao Feijian successfully accelerated, what followed was the final synthesis of the 'mixed' Yuan Sword Array, which was a 'door' quite complex technique, and Xu Dong of course could only complete it under the guidance of the Holy Child.

The Holy Infant appeared to explain to Xu Dong, "The formation spectrum of the 'mixed' Yuan Sword Array is divided into three layers: upper, middle and lower, and the number of sword light, sword qi, and sword light in each layer is different. ”

"The upper layer uses more mangs to prevent the master from breaking the formation, the middle layer uses more light to extend the lethality, and the lower layer uses more qi to make the formation float, and the sword array can float to flexibly move to chase and kill the opponent. ”。 ”

"Because this sword array has to deal with monks with skilled spells, it must have supernatural powers that ordinary sword formations do not have, and a 'mixed' yuan sword array is like a lightning bolt, relying on its divine speed to pursue enemies thousands of miles away. ”

"The opponent is even a monk who has a high cultivation level and above the Merge Realm, only he is bitten by the 'Chaos' Yuan Sword Formation, and he can't escape the siege of the lightning-fast Sword Formation at all, and he will be divided by ten thousand swords in the blink of an eye. ”

"The reason why the 'mixed' Yuan Sword Formation is divided into three layers, upper, middle and lower, its main purpose is not to let the opponent escape, you may escape from the middle sword formation by luck, but the upper and lower two layers of the sword formation will never let you go, unless you have the ability to go to heaven and earth. ”

After the Holy Infant explained endlessly, he began to formally teach the mantra of the exercises, each layer of the three-layer sword formation has a different formation spectrum, in addition to the formation spectrum of the three-layer sword formation, there is also a general formation spectrum.

Before practicing the 'mixed' Yuan Sword Formation, Xu Dong had practiced ordinary sword formations after all, so now he is familiar with it, and he has not encountered any hurdles that he can't overcome, on the contrary, he is still a little handy.

According to the Holy Child's guidance, Xu Dong only 'spent' for half a month, and the 'mixed' Yuan Sword Formation was successfully cultivated, as long as it was consolidated in the future, the supernatural powers that this top-level sword formation should have will be revealed.

As the 'spring' had grown old imperceptibly, and summer was approaching almost unobtrusively, Xu Dong entrusted the affairs of the island to the three sons of Chief Moza, Dan Kezhen and Mei Huai, and he returned to the country of Ratuo with the three 'women'.

Yaqian, Sun Ruyun and Abu 'Hua' had followed Xu Dong into the palace before, and the four of them teamed up to compete with Zhenkuan with "Demon Killer**", Xu Dong wanted them to appear as companions, but they were afraid of causing criticism from the ministers in the palace.

He put a lot of thought into it, thinking about it and thinking that there was no good way, but he didn't want them to leave him, so he gritted his teeth and asked for "sex" to give them the status of concubines.