With the sensing of the power of the formation, combined with the map of the sea area provided by An Yan before, as well as the movement trajectory of the soul power just now, Fang Tianyou had already roughly deduced the scope of this unknown formation, as well as its central core area.

So the two of them sacrificed the earth escape talisman again and fled towards the core area of the formation identified by Fang Tianyou. Sure enough, the more you walked forward, the stronger the power of the formation became.

Through the power of the sensing formation, Fang Tianyou adjusted his direction in time and fled deeper underground.

Soon, the two entered a cave again. The area of this karst cave is vast and boundless, and with Fang Tianyou's divine sense, he can't even detect the entire karst cave at once.

"The aura of heaven and earth here is not as rich as the East China Sea Secret Realm...... Hey, there was also a sword there, but it was not in the pillar, but it was surrounded by a pillar of light, bigger and longer than the sword I saw just now!" Xiao Wu quickly sensed and looked at the environment of the cave, and suddenly pointed to the front in amazement.

Fang Tianyou didn't answer Xiao Wu, but walked towards the sword that Xiao Wu was pointing to with a solemn expression. It was a dark and quaint sword, with a strange snake with an ugly head carved on the hilt of the sword, hovering over its body and spitting snake letters.

On the other side of the snake's head is engraved the word evil spirit, which must be the name of the sword.

The "Evil Soul Sword" was supported by a pillar of light, and it was very strangely suspended in the air, and the pillar of light was like a cage, locking up the "Evil Soul Sword".

"This pillar of light is condensed by the power of the formation, could it be that this formation is going to seal the evil soul sword in front of you?" Xiao Wu said as he carefully looked at the evil soul sword and the pillar of light.

"The power of this formation is so powerful that even my divine sense can't penetrate it. Fang Tianyou said vigilantly. He wanted to probe this evil soul sword with his divine sense just now, but found that his divine sense could not penetrate the pillar of light condensed by the power of the formation.

"Yin ......" When the two of them were concentrating, the Evil Soul Sword shook suddenly, and the pillar of light also trembled, and a powerful force erupted from the pillar of light, so that Fang Tianyou and the two couldn't help but take a few steps back.

This movement turned out to be made by the Evil Soul Sword when it was struggling, Fang Tianyou and Xiao Wu were extremely shocked, and when they looked at it, they could vaguely see eight small rays of light visible to the naked eye wrapping around the body of the Evil Soul Sword, entangling the Evil Soul Sword to death, and the Evil Soul Sword had to stop shaking unwillingly. Looking at the posture, the Evil Soul Sword wanted to break free from the shackles of the power of the formation, but it failed to get what it wanted after all.

"Let me out, I can give you infinite power!" At this moment, a voice sounded very abruptly, but it did not sound in the cave space, but directly in people's minds, as if it was transmitted with soul power.

Fang Tianyou and Xiao Wu immediately looked at each other, obviously both of them heard this voice, and they both felt surprised and inexplicable. But then, the two of them invariably turned their eyes back to the evil soul sword in the pillar of light.

There was no one else here, could it be that the sound was made by the Evil Spirit Sword?

"Are you talking? Who are you sacred?" asked Xiao Wu as he pointed at the Evil Spirit Sword in the pillar of light.

"I am the sword spirit of the Evil Soul Sword!" the voice added.

"Sword Spirit!" Xiao Wu and Fang Tianyou said at the same time. Xiao Wu's tone was full of doubt, because he didn't know what the sword spirit was.

Fang Tianyou was extremely surprised, because he knew what it meant for this Evil Soul Sword to have its own sword spirit, which meant that it was definitely a powerful spiritual weapon!

As an immortal cultivator, Fang Tianyou certainly knew that some spiritual weapons had their own consciousness, which was commonly referred to as possessing instrument spirits.

The spirit is the autonomous consciousness of the magic weapon of the spiritual weapon, and after the magic weapon has the spirit of the instrument, it is like a person has consciousness, and it is no longer a simple weapon at the mercy of others.

After having the spirit of the instrument, the magic weapon of the spirit weapon has its own thinking, and can choose the master by itself to a certain extent, and after recognizing the master, it can communicate with the master's mind.

When facing the enemy, sometimes the master does not have to deliberately control, the machine spirit can independently resist the enemy, and independently fulfill the master's will, and some machine spirits can also cultivate on their own to improve their own ability and the ability of the spirit weapon.

There are two types of machine spirits: innate and acquired. The innate spirit is some super spirit weapon magic weapon after the weapon, absorbing the aura of heaven and earth, the essence of the sun and the moon, and gradually having the meaning of channeling and forming their own consciousness.

Because it is the consciousness generated by itself, such a spirit is more compatible with the magic weapon of the spirit weapon, and the corresponding magic weapon of the spirit weapon is also extremely powerful.

The acquired artifact spirit is that when the immortal cultivator refines the spirit weapon or magic weapon, he adds the soul of the demon beast, and even the soul of the enemy to refine it together, once the refining is successful, the spirit weapon magic weapon becomes a psychic treasure, and the power increases exponentially.

When he was in the Immortal Cultivation Realm, Fang Tianyou once had a spiritual weapon treasure with an innate weapon spirit, but it was a pity that when he was fighting against the masters of the good and evil factions, that spiritual weapon treasure was shattered.

The Evil Soul Sword said that it was a sword spirit, and this sword spirit was of course a kind of instrument spirit, because it was produced in the magic weapon of the sword spirit, because it was called a sword spirit.

Since the machine spirit has been produced, whether it is an innate machine spirit or an acquired machine spirit, it is enough to show the strength of the evil soul sword.

"That's right, I'm the spirit of the Evil Soul Sword, a magic weapon that has produced a spirit spirit, and I can easily break other magic weapons at will, you should know my value.

Whoever has me will definitely be invincible in the world. As long as you can let me out, I am willing to recognize you as my master. The Evil Soul Sword continued to tempt Fang Tianyou and the two of them.

"If you are so powerful, how can you be trapped here?" asked Fang Tianyou suspiciously.

"Hey, it's not because he fell into the trap of the Zhengyi Sect Daoling, he actually summoned the six masters of the Dao Sect to form this Liuhe Sealing Formation and trapped me here. If I fight alone, none of them will be my opponent!" said the Evil Spirit Sword proudly.

"Zhengyi, Zhang Daoling!" Fang Tianyou said in surprise. In order to find the footprints of the Earth cultivators, he had consulted a lot of Huaxia Taoist materials before.

Among them, Zhengyi is mentioned, and Zhang Daoling is the founding patriarch of Zhengyi, which is a figure in the early Eastern Han Dynasty. In this way, this evil soul sword has been sealed in this East China Sea, and I am afraid that it will be almost two thousand years!

"Then what should we do to release you? The power of the formation here is very powerful, and we can't break this pillar of light at all. Fang Tianyou said again.

"It's actually very simple to let me out," Seeing that Fang Tianyou's tone had changed, as if he intended to let himself out, the Evil Soul Sword Spirit looked a little excited, "As long as you casually destroy any of the formations of the Liuhe Sealing Array, I can break out of the formation, or, you can attack this pillar of light with all your strength, cooperate with me, we can definitely open a gap in the pillar of light condensed by the power of this formation, as long as you tear a gap, I can come out." ”

"The Liuhe Sealing Array is indeed composed of six formation eyes. ”

Fang Tianyou nodded as if he understood, and then raised his eyes to look at the evil soul sword in the pillar of light and said: "I'm afraid that things are not as simple as you said, the six array eyes complement each other, if you want to destroy any of the formation eyes, you will definitely be counterattacked by the other five array eyes." As for destroying the pillar of light at the center of the formation here, we will be attacked even more!"

"It seems that you know a lot about the way of formation. Yes, of course, there will be some dangers if you want to break the formation, but for the sake of a spiritual weapon with a sword spirit, don't you think it's worth taking the risk?" The Evil Soul Sword was very surprised by Fang Tianyou's insight, and simply said in a showdown.

"Your words are indeed encouraging, but we are very self-aware. With the strength of the two of us, we can't control the Evil Soul Sword at all, let alone control you.

If we hastily make a contract with you to confess the master, I am afraid that it will not be us who will become the master of the spiritual weapon, but you will become the master of both of us. Fang Tianyou sneered.

"What, you ......" Seeing that his conspiracy had been broken, the Evil Soul Sword was instantly angry.

Xiao Wu listened to Fang Tianyou's words and almost broke out in a cold sweat. If it weren't for Fang Tianyou's good concentration, if Fang Tianyou wasn't there, Xiao Wu would almost agree to the Evil Soul Sword without hesitation, naively thinking that he could obtain this spiritual weapon.

Now listening to Fang Tianyou's words, Xiao Wu thought that Zhang Xianye's consciousness was inexplicably controlled in the secret realm of the East China Sea, and the consciousness of Long Wu and Long Yi was also eroded, so he realized that things were not so simple.

The Liuhe Sealing Array is so powerful, there are no ghosts who dare to punish the murderer here, and the only existence with soul power consciousness is the sword spirit of the evil soul sword in front of him.

From this, Xiao Wu was almost certain that it was not a ghost at all who was secretly making trouble, but the sealed Evil Soul Sword! It was it that wanted to control Long Yi and the three of them, and it was also the Evil Soul Sword that guided himself and the young master to run next to the little sword!

The evil soul sword itself said that as long as it destroys any of the formation eyes, it can break out of the formation, but at that time, he also encouraged the young master to take away the small sword, if it was not for the young master to be calm at that time, he saw through the small sword is where the formation eye was, and took away the small sword, this weird evil soul sword was afraid that it would have broken out of the formation.

This evil soul sword can affect others through the formation seal, you can imagine how terrifying it is, once this guy breaks out of the formation, I am afraid that neither he nor the young master will be able to escape its control.

Thinking of this, Xiao Wu couldn't help but feel a little scared in his heart, his eyes looking at the Evil Soul Sword were a little more jealous, and the magic power of his whole body surged, and he became vigilant.

"Looks like you know a lot. Could it be that some old monster has been reincarnated?Hmph, since you have already seen through it, then I have nothing to be polite about!" the Evil Spirit Sword snorted coldly.

"Be careful!" Fang Tianyou reminded Xiao Wu, and his body quickly retreated backwards. Xiao Wu had already deduced the weirdness of the Evil Soul Sword from Fang Tianyou's previous words, and without Fang Tianyou's reminder, he had already retreated backwards.

Although the two of them retreated violently, they still felt a wave of soul power surging towards their minds from the pillar of light, Fang Tianyou hurriedly raised his divine sense sword and slashed over, stopping that soul power.