The bitter sea is the most central.

The place where the sword qi erupted before was the center of the bitter sea, so Zhou Tong didn't need to spend much time searching, and he easily came here.

Standing at the bow of the ship, I saw that in the center of the Han Sea, there was a huge spring, gushing up from the bottom of the sea, sacred and peaceful, full of white brilliance, it was simply a real immortal energy, the strongest and most holy and divine life essence.

This kind of spring water is too gorgeous, it is like the morning dew divine liquid of the fairy realm surging, brilliant, shining, and vibrant, which is completely comparable to the divine spring liquid in the forbidden land of the wilderness.

"It's worthy of the Heavenly Venerable Life Spring Divine Liquid!" Just by getting closer, Zhou Tong had a feeling of feathering and flying immortals, and his whole body and muscles were nourished by that kind of supreme vitality, and his spirit was full, and Sendai made a Dao sound on his own.

Leaving the big ship, Zhou Tong went directly into the depths of the Fountain of Life, and suddenly an extremely terrifying killing machine came, making him feel like his body was shattering, as if he was about to fall here.

"This is a good place to sharpen the flesh and the primordial spirit, and I want to cast the strongest supreme foundation here!" Zhou Tong didn't immediately take out his treasure, but wanted to use the murderous aura of Lingbao Tianzun to refine his flesh body and primordial spirit.

He knew that the level of the Great Sage to the Quasi-Emperor was extremely difficult, even the Emperor of the Desolate Heaven was only because of the guidance of the Immortal King of the Forbidden Zone, and the primordial gods of so many Dark Immortal Kings in the Void God Realm as the grinding object, this could break through in such a short period of time.

No matter how strong Zhou Tong is now, he is not so arrogant that he thinks that he can break through the boundary of the quasi-emperor in a short period of time without relying on the stimulation and oppression of external forces.

After all, his current age is still too young, and the red line of the five-hundred-year-old Supreme is almost impossible to break through by relying on his own strength alone, and he must rely on the stimulation of external forces.

The murderous aura of this Lingbao Tianzun in front of him is the best object of sharpening, and only with such external stimulation and oppression can it be possible to forge the foundation of the Supreme in the shortest possible time.

He went further, and the terrifying murderous aura also skyrocketed at the same time, and at the same time, he completely opened the Ten Cave Heavenly God Ring, absorbing the Life Spring Divine Liquid of the Heavenly Venerable Wheel Sea to his heart's content.

"Click!"

Zhou Tong's body was suddenly like broken porcelain, and cracks were revealed on the surface of his body, and the terrifying killing machine invaded the inside of his body along the cracks in his body.

It even invaded Sendai and wrapped itself around his Genshin.

Zhou Tong's whole body was glowing, and the five secret realms of Wheel Sea, Dao Palace, Four Poles, and Hualong emitted a brilliant halo at the same time, connecting into one, doing his best to resist the killing machine of Lingbao Tianzun.

"Phew!" "Whew! "Whew! ”……

The murderous aura was like a sword, which was removed from Zhou Tong's body, and burst out from the cracks in his body, and after the murderous aura was eliminated, the cracked flesh naturally healed under the action of the "Immortal Sutra".

However, the old murderous aura was forced out of the body, and the old cracks healed; But there are new killer invasions, and new cracks are emerging.

Zhou Tong stood here for three whole days, his physical body and Yuan Shen were so powerful that he almost ignored the murderous intent here, he took another step and walked deeper, and the murderous aura in front of him was even stronger.

He went step by step, three days at first, five days and seven days later...... Even five years later, it took him half a year to take a step forward.

This is an unimaginable journey of tempering, the murderous aura left by Lingbao Tianzun is too terrifying, the power is too powerful, the further you go, the more terrifying the murderous aura becomes, enough to cut down the stars.

However, in this process, the "Immortal Sutra" was also unprecedentedly active, and the murderous aura eroded the physical body, and then was expelled by Zhou Tong. In this way, the "Immortal Sutra" ran at an extremely fast speed, and the injured parts became stronger after repairing.

It is not only the operation of the "Immortal Sutra" and the process of murderous erosion, but also an all-round inspection; Check if the scriptures that Zhou Tong started himself are strong enough.

Some places are powerful enough, so the speed of removing the murderous aura is fast; And in some places where it is not strong enough, the speed of removing the murderous aura is a little slower.

This time I am also looking for weaknesses in my own scriptures, so as to further improve them.

For five years, Zhou Tong has been refining his body and spirit with the murderous aura of Lingbao Tianzun, and he is using Lingbao Tianzun's murderous aura and avenue as the object of trial, making up for the defects of his scriptures little by little, making himself take a crucial step forward again.

Now, his physical body and primordial spirit have reached an extreme realm, the limit of the Great Sage Realm.

As long as he lets go of his cultivation a little, he can go out directly to cross the tribulation and become a consummation sage.

In just five years, Zhou Tong is getting stronger and has begun to build a supreme foundation!

"It's almost here, and if you go any further, it's a little more than worth the loss, for such a long time, those people in the outside world who are looking for me must be almost looking for here, even if they can't find here, Daoyi will definitely help!" Zhou Tong took a step back and said softly.

The current murderous aura is already the limit of his current level. If you want to go further, you must reach the quasi-emperor level, otherwise it will probably take a year or two to move forward one or two steps.

Now Zhou Tong, I can't afford to wait!

It is necessary to take advantage of the fact that the large army has not descended here, and take away the four swords of Zhuxian as soon as possible.

"Buzz!"

At this moment, Zhou Tong took out a copper lamp, which he found in the Great Leiyin Temple on Mars, and it was also a treasure refined by Lingbao Tianzun back then, which was specially used to deal with corpse disasters.

I didn't need this lamp before, but I need it now.

This is a human body with a ghostly face, the light is faint, and at its wick, a dry little old man appeared, which is very weird.

The little old man sat cross-legged, reciting the Sutra of Salvation, and the flames on the lamp were flourishing.

At the same time, the surrounding killing intent converged, and Zhou Tong's feeling that his whole body was about to explode suddenly disappeared.

Wrapped in this hazy firelight, he approached the deepest part of the Fountain of Life step by step.

Although the medicinal effect of the Heavenly Venerable Wheel Sea's Lifespring Divine Liquid is comparable to that of the Divine Spring of the Ancient Forbidden Land, for countless years, it has been contaminated with too much murderous aura of the Zhuxian Four Swords, and only one drop of the Lifespring Divine Liquid is enough to kill a saint.

The flames on the ghost lamp blocked the divine liquid in the fountain of life, allowing Zhou Tong to calmly enter the depths.

And in the process, he finally saw the body of the Four Swords of Zhu Xian.

The dark red sword body, the overwhelming murderous aura, each sword seemed to have devoured the blood of hundreds of millions of living beings, just sinking there, there was a terrifying aura of heaven and earth cracking, enough to destroy the heavens and the earth.

The patterns on each sword are different, but they are all extremely terrifying patterns, including the man who looks down on the proud gods of the world, the picture of killing the true immortals, the picture of the infinite sea of blood, and the picture of the corpse of ten thousand souls.

"Zhu Xianli, kill the immortals, trap the immortals everywhere with red light, the immortal changes are infinite, and the blood of the Daluo Immortal is ......" Zhou Tong subconsciously thought of this poem in his heart.

The sword that kills the true immortal picture is the Zhuxian sword, the sword that depicts the man who looks down on the world is the sword that kills the immortals, the sword that depicts the boundless sea of blood is the sword that traps the immortals, and the sword that paints the corpses of all spirits is the sword of the immortals.

These four swords represent destruction and killing!

"The combination of four swords is a complete imperial soldier, and if it is alone, the power will definitely be greatly reduced." Zhou Tong looked at the four swords in front of him, they were not resurrected, they were still staying here quietly.

And Zhou Tong was also thinking about calculating at this time, can he take these four swords away here?

If you want to break the Immortal Sword Formation, you need at least four imperial soldiers; But if these four swords are taken away first, then it will be much easier to subdue the formation diagram when the time comes.