The reason why Xu Lin couldn't wait to refine the Immortal Sword as soon as he returned to the Shaking Light Cave Heaven was because he noticed a sentence that the Immortal Dao Immeasurable Chapter had said in the Heavenly Palace, that was when he asked him who his previous life was, a passage said by the Immortal Dao Immeasurable Chapter: "This is the reason why I am waiting for you here, and it is also the reason why the Immortal Killing Sword will appear here." ”

From this sentence, Xu Lin keenly felt that there must be a secret of his past life hidden in the Immortal Killing Sword, and he should be able to dig out this secret from it.

Xu Lin was now sitting in a quiet room, which was only about ten steps square, and the snow-white walls were all on the side, which effectively isolated the noise of the outside world.

In the center of the meditation room is a small altar, similar to the altar of the Five Ghosts Ruyi Carrying Array, except that the Five Ghosts Ruyi Carrying Array is used for teleportation, and this altar is used to form an absolute time realm.

Xu Lin sat cross-legged on the altar, which had been activated, and a hazy light rose from the altar and connected to the roof of the ashram. Above the light, there were very old words that appeared and disappeared, rippling with a faint fluctuation of the rules of time.

Looking inside from the outside of the altar, the naked eye can see that the space inside seems to have been folded in some places, although Xu Lin is sitting cross-legged inside, but the position where he is now does not know how many years of distance from the outside.

One to ten, this altar is not opened to the maximum, but only opened to one day in the outside world, and a time limit of ten days inside. Although this time limit is not large, it is enough for Xu Lin.

At this moment, Xu Lin was engrossed in the operation of the Infinite Sword Technique, transforming the mana in his body into a steady stream of Infinite Sword Qi, and the majestic sword qi flowed rapidly in Xu Lin's body, like a tide, washing the Immortal Sword in the Xuan Palace wave after wave.

At this time, in Xu Lin's Xuan Palace, he specially carved out a place for the Immortal Sword. And with the formation technique of the Heavenly Master Dao, an altar was built under the Killing Immortal Sword. The altar was completely interwoven with infinite sword qi, and all around it were sword qi talismans.

Countless sword qi runes flew up and down, connected together, like spirit snakes, circling around the suspended Immortal Killing Sword. And the Infinite Sword Qi that Xu Lin transformed into mana passed through that altar and entered the inside of the Immortal Killing Sword.

"This is the world in the sword!" Xu Lin's divine sense followed the Wuji Sword Qi into the interior of the Immortal Killing Sword, and saw a vast world. Among them, there were countless sword qi horizontal, and in the deepest part of the world, he could clearly feel where that innate killing machine was hiding.

"If you want to refine the Immortal Sword first, you must first subdue the sword spirit. Xu Lin's divine sense transformed into his own appearance, standing in the void of the world in the sword, his eyes were profound, looking at the depths of the world, and muttering to himself.

Although he knew that this step was very simple, Xu Lin did not dare to be careless. Changing to another sword, Xu Lin could go on a rampage and suppress the sword spirit strongly. But this is the Immortal Sword, one of the five fierce soldiers of the ancient world, and the sword spirit is evolved from the innate killing machine. In other words, what Xu Lin has to deal with is that innate killing machine.

After hesitating for a while, Xu Lin finally relented and moved.

"Starve the faint-hearted, hold the bold. I don't believe I can't subdue this innate killing force. Xu Lin's eyes flashed with a determined Shenhua, and his body was like lightning, shooting towards the depths of the world.

A large amount of Infinite Sword Qi followed behind him, like thousands of troops. The sword qi continued to fly out, entangled with the sword qi in the world of the sword. This was a refining process, and only after transforming the sword qi in the entire sword world into infinite sword qi could Xu Lin be able to refine the Immortal Killing Sword.

whistling all the way, and soon Xu Lin came to the depths of the world. It's a void, there is no land, there is no sky, it's just a pure void. And that innate killing machine was curled up in the void a hundred miles away at this moment, like a child.

The Innate Killing Machine has no color, it is a pure white light, after being slashed by Xu Lin with the Sword of Wisdom, the Innate Killing Machine is hidden here, not running around.

"It's you!" Xu Lin snorted coldly after identifying the innate killing machine. Then with a stroke of his hands in front of him, the Taiyi Wisdom Qinglian Sword appeared in his hand, and the cyan sword light slashed towards the innate killing machine with the breath of wisdom.

Although the innate killing machine was curled up there, it was still very sensitive in the end, almost as soon as the Taiyi Wisdom Qinglian Sword was formed in front of Xu Lin's body, the innate killing machine immediately woke up as if it was stimulated. It felt the breath of wisdom and immediately knew who was coming.

However, the shadow of being slashed by the sword of wisdom was still there, and the first time the innate killing machine woke up, there was no counterattack, but a twist of the body, and the sword light appeared, cutting a hole in the void on the side, quickly drilling into it, and disappearing.

"Ran away!" Xu Lin was extremely surprised, and then he felt that something was in trouble, this was the sword world of the Immortal Sword, that is, the territory of the sword spirit. If it wants to run, I'm afraid it will be really difficult to catch it.

"Purple Emperor Sword Domain!" Although Xu Lin felt troubled, it didn't mean that he had no means. As soon as his body moved, he summoned the Purple Emperor Sword Domain. Five main array swords fell from the sky, and then Xu Lin stretched out his finger and popped it out. The five swords flew towards the void in the distance in five directions, flying out tens of thousands of miles.

Then the light in Xu Lin's hand flashed, and he took out the remnant picture of the Great Emperor's magic circle in that corner. He used the remnant diagram as the center of the formation, and concentrated all the Wuji sword qi that had spread around him, and then he took out the Human Emperor Holy Pen again, and used the sword qi as ink to draw a complex array pattern in the entire ten thousand miles radius.

The Purple Emperor Sword Domain shrouded a radius of thousands of miles, and the formation patterns formed by thousands of Infinite Sword Qi firmly linked the five swords together. Then Xu Lin released his divine sense and completely radicalized the sword formation.

"Buzz...!"

The crisp sound of the sword suddenly sounded, and the formation patterns formed by the Infinite Sword Qi all lit up, releasing an incomparably clear sword intent at this moment. This is the sword intent with Xu Lin's divine sense, and almost in an instant, the sword intent filled the void within a radius of thousands of miles. And Xu Lin's vision also saw everything within a radius of thousands of miles at once.

"Well, two thousand miles away!" Xu Lin's eyes clearly showed everything within this ten thousand miles radius, and then he saw a white light flashing two thousand miles away, and at that moment, his heart moved, and the sword intent in that place suddenly surged violently, and the infinite sword qi formed a dark cloud there, and soon a sword thunder fell.

"Boom!"

The sword and thunder fell, and it immediately caught the innate killing machine that had no defense by surprise. The power of the Infinite Sword Qi strengthened by the Purple Emperor Sword Domain was extremely powerful, and when a few sword thunderbolts fell, they knocked over the Innate Killing Machine several times in succession.

The innate killing machine flashed with white light, and as soon as he turned around, he cut the void in front of him, and when he turned around, he was about to drill into it. Xu Lin, who was two thousand miles away, saw its actions at this time clearly. smiled coldly at the moment, and punched out a seal in his hand.

In the dark clouds two thousand miles away, tens of thousands of Infinite Sword Qi suddenly intertwined, forming an incomparably huge sword thunder. Falling with a click, the sword and thunder shone brightly, and the void where the Innate Killing Machine was located was submerged in an instant.

"Look where you're still running!" The corners of Xu Lin's mouth curled, his body moved, and he quickly walked towards the place of battle.

The distance of two thousand miles, but in an instant, when Xu Lin arrived, the brilliance of the sword thunder falling and exploding slowly dissipated. As soon as Xu Lin stood still, he immediately stretched out a hand, which was in the shape of a claw in the void, and the power of the rules was wrapped around the five fingers, and it fell to the ground suddenly, grabbing the innate killing machine in it.

If you catch the innate killing machine, everything will be easy to do, Xu Lin doesn't need the innate killing machine to subdue, he divided a part of his divine sense, forcibly entered the innate killing machine, and engraved his life imprint in the deepest part of the wisdom of the innate killing machine.

The innate killing machine that was still unruly in Xu Lin's hands immediately became honest after Xu Lin engraved his life imprint. Xu Lin could clearly perceive that all the wisdom of the innate killing machine was under his control.

The next refining was incomparably smooth, after a hundred days in the Altar of Time, Xu Lin's eyes suddenly lit up, and there was an incomparably clear sword light swimming in his eyes, swimming from the left eye to the right eye, and then from the right eye to the left eye, looking extremely smart.

And in Xu Lin's body, all of his Infinite Sword Qi turned like clear water, and there was not a trace of impurities in it. The water-like sword qi would definitely be shocked if it was seen by someone who cultivated swordsmanship.

Water represents everywhere, everywhere, and from now on, Xu Lin's Infinite Sword Qi will be like water, and there will no longer be any magic weapons or spells that can intercept it.

Xu Lin stood up and let out a long breath. The Killing Immortal Sword was refined by him, and it was refined into the eyes, so that the enemy would not need to be summoned from the Xuan Palace in the future, as long as the thought moved, the Killing Immortal Sword would shoot out directly from the eyes, and the other party would be caught off guard.

The only regret is that Xu Lin did not find any secrets about his past life. He checked back and forth dozens of times, but there was no clue at all.

"Where the hell is this secret hidden?" Xu Lin closed the Altar of Time, and a thought flashed through his mind.

"Xu Lin, the head of West Kunlun, Moyang Zhenren, is looking for you. Tiangui, who had been paying attention to this quiet room, knew that Xu Lin had succeeded the moment Xu Lin stood up, and when Xu Lin had not yet stepped out of the door of the quiet room, Tiangui's voice had already reached Xu Lin's ears.

"The head of the West Kunlun, the master of Yu Qiancheng?" Hearing Tiangui's words, Xu Lin's brows suddenly furrowed: "What is the matter with him looking for me?"