Once the law of darkness is cultivated, the cultivator's temperament will change drastically, and no matter how kind he was before, he will eventually destroy his human nature. However, there is a special situation, that is, the light comprehension spirit realm to cultivate the dark law, in this way, the cultivator's temperament will not change greatly, but the strength will decline instead.

"This is the first time I've seen Butterfly Shadow Girl, she is in the Bright Enlightenment Spirit Realm, but she has a dark stone in her body, so I can't say whether cultivating the law of darkness will increase or decrease her strength. ”

Yechen said this to Xu Han at the time.

"Whether her strength increases or falls, it's important to save her life. Xu Han whispered and jumped into the Black Demon Spring without the slightest hesitation.

According to Yechen, the Black Devil Spring Water is a very strange substance, and I have never heard of anyone touching the water of the Black Devil Spring, but just close to it, a little longer, will be infected with an inexplicable strange disease, which cannot be cured.

Therefore, Yechen persuaded Xu Han to think twice, approaching the Black Devil Spring was already a risk, not to mention jumping in, the most terrifying thing was that no one knew how big the risk was and how strict the result would be.

Xu Han is eager to save people, he can't care so much, and he can come back alive from the sea of death, I believe that the Black Demon Spring can't help him.

Xu Han's eyes were endless dark purple, and he didn't feel anything abnormal.

However, a strange voice sounded in his ears.

"Why did you save her?"

This voice Xu Han seemed familiar, but he couldn't remember it for a while.

"No, she's my friend. No matter who spoke, Xu Han replied firmly.

"Friends? Anyone can be a friend, a friend, how much is it worth? ”

A hair-raising sinister laugh rang out, like the devil's snickering.

Xu Han's eyes suddenly flashed with surprise, and he frowned: "You are, heart demon?!"

He remembered that this voice was the voice of a demon.

"Hey, hey, hey...... If you answer correctly, I can sue you, this Shadow Book, if you keep it for your own cultivation, your strength will only increase greatly. ”

"How so?"

He wasn't wavering, just a little curious.

"The reason why the law of darkness can make people destroy human nature is because it is originally a law that only demons can cultivate. And I'm the devil, hahahaha!"

The unbridled laughter and hoarse voice made Xu Han feel very uncomfortable.

"You want to say that I am one with you?" Xu Han felt a little funny.

"Isn't it? I am the demon of the heart, the demon who occupies the heart, and I now dwell in the depths of your heart, and I am one with you. ”

"Joke, I think, you are trying to trick me into becoming your puppet, so that we are truly one. ”

Xu Leng laughed: "If I even betray my friends, it will be equivalent to losing my heart, won't it give you a chance to take advantage of?"

The demons did not respond.

Xu Han didn't plan to talk nonsense with it anymore, his head was pierced, his body sank, and he drilled towards the bottom of the spring.

The closer he got to the bottom of the spring, the stronger the dark purple light became, and Xu Han's vision gradually became clearer, and he could barely see the things around him.

Suddenly, Xu Han's pupils froze, and he saw a black ancient book floating quietly in the center of the bottom of the spring, as if it had remained unchanged for eternity.

"Shadow Book ......" Xu Han whispered, his hand stretched out, as soon as he touched the Shadow Book, Xu Han's eyes went dark, and he seemed to lose consciousness in an instant, but he instantly regained consciousness, and then, the black magic spring water disappeared wildly, like evaporation.

"What's going on?" The sudden change made Xu Han a little overwhelmed.

A moment later, all the black demon spring water turned into a black mist, surrounding Xu Han.

Xu Han's eyes narrowed, staring at the shadow book in his hand, it was very light, as if it had no weight.

"Is it because of it?" Xu Han whispered secretly.

Suddenly, these black mist gathered frantically, and the shadow book automatically spread out in Xu Han's palm, like an endless black hole, sucking all the black mist into it.

Xu Han just watched this scene quietly, with a hint of surprise in his eyes.

In about five minutes, the shadow book gradually closed, as if satisfied, but there was still some black fog surrounding it, like a group of homeless children. These children seemed to be staring at Xu Han, and after a few seconds, the black mist poured towards Xu Han again.

Barely had time to react, and the black mist went crazy and burrowed into Xu Han's limbs and disappeared without a trace.

"In the end...... What's going on. Xu Han froze in place, just now, when the black mist drilled into his body, he had a strange feeling.

He felt that there were many pairs of blood-red pupils staring at him around him, and all kinds of eerie and terrifying evil smiles sounded in his ears, and at that moment, Xu Han seemed to be in hell.

The feeling quickly faded into nothingness, as if it had never existed. He glanced around, revealing a look of surprise, the shape of the Black Devil Spring, like a human heart, has no spring water, so it is extremely easy to identify.

"Forget it, it's important to go back and save people. Xu Han said secretly in his heart, and when he turned around, he saw an extra person behind him, a person who was covered in a big black cloak.

"Who are you?" the aura emanating from that person's body made people feel very bad.

"Ahem......" he coughed a few times and said in a hoarse voice, "...... Hand it over. ”

"Hand it over?" Xu Han couldn't help but raise his eyebrows, then glanced at the shadow book in his hand, raised the shadow book slightly, and sneered: "You said I would hand it over when you said you'd hand it over?" Are you joking?"

"Hand it ......over," the man took a step forward, and seemed to be very difficult, his voice was extremely hoarse, and he was old, it should be an old man.

Xu Han's gaze sank, and he sneered: "If you want me to hand it over, it depends on whether you have the ability." ”

The old man took a sharp breath, and he could clearly see his chest bulging, and then, with a pop, he spit out a mouthful of blood on the ground, but this mouthful of blood made Xu Han's heart tremble, because it was a mouthful of black blood!

Black blood, usually the blood of the poisoned person, is highly poisonous and has been poisonous for a long time.

"He's poisoned, no wonder the sound is so strange. Xu Han said secretly, he was already planning to leave in his heart, and he had no interest in fighting with a deeply poisonous person.

"Farewell. Xu Han poured out two words in his mouth, and his figure flickered.

Suddenly, a dark shadow stopped him, more than three times faster than him!

Xu Han was shocked, and retreated back to the same place, and when he raised his eyes, the old man in black was still standing there, as if he had never moved.

"It's so fast, this person is not an ordinary person. Xu Han said secretly in his heart, and there was a little more vigilance in his eyes.

"Hand it ......over," the old man raised his face, causing Xu Han's pupils to shrink.

What a terrible face, dove-shaped and pale as paper, with a pair of wooden pupils bursting out, and black lips.

"I don't care who you are, this thing is going to be taken to save my friend, if you want to rob it, don't blame me for being ruthless. A cold glint flashed in Xu Han's eyes, revealing a cold murderous intent.

Saving people is like fighting fire, this old man must dare to obstruct and delay him, and kill him as such.

As if he hadn't heard, the old man kept repeating those three words in his mouth, eerie and terrible, "Hand it over...... Hand it over ......"

"Damn. With a bang, the Heavenly Thunder Sword came out of its sheath, and a silver lightning bolt pierced the sky in an instant.

This old man gave him a very bad feeling, and he could completely overshadow him in speed, and his strength was extraordinary. Therefore, Xu Han has to strike first, and the shot is a killer move.

"Hand it over!" The old man's expression suddenly became extremely hideous, and two thin and abnormal palms slapped out, seemingly weak, but with a breath of incineration, this breath is somewhat close to the flame aura, but the nature is very different, there is no scorching heat, no flame form, and even no spiritual pressure, as if there is only the intention of incineration, to burn a qiē.

A strong sense of foreboding came to his heart, Xu Han's face changed slightly, he immediately stopped his steps, and his body turned sharply back.

This breath was so terrifying that just getting close to it made him feel as if his body was about to burn, but he couldn't even feel the heat.

Zizi ......

Xu Han's pupils shrank suddenly, and he looked at the scene in front of him in amazement.

The breath of incineration spread leisurely, and everything that was touched was incinerated in an instant.

If you want to use a metaphor, Xu Han only wants to get one word, no cause and effect.

For example, the high temperature of the flame is the cause, and the burning is the effect. But the incineration breath released by the old man seemed to directly abandon the cause, and there was only one result.

"It's horrible. Xu Han's brain turned sharply, thinking about this strange phenomenon.

Suddenly, a swift lightning flashed in his mind, Xu Han trembled suddenly, and cold sweat flowed, "It's really ...... realm?"

Xu Han remembered seeing a description of the True Infinite Realm powerhouse in a book, when the swordsman stepped into the True Infinite Realm from the Spirit Realm, the essence of the spiritual qi would be extracted and refined into True Qi.

The barbarian realm swordsman makes brute force, the qi realm swordsman makes sword qi, and the spiritual realm swordsman makes aura, and when it comes to the true realm, it is true qi, and there is an essential gap with aura.

The incineration aura released by the old man was very similar to the true qi described in the book.

The old man's thin hands were stretched out, and the incineration breath was endless, overwhelming, and in an instant, Xu Han had no way to retreat, and this terrifying aura was filled in all directions.

"Incinerate...... Could it be the true qi of the flames?" Xu Han gritted his teeth gently, the gap between the spiritual realm and the true realm was impossible to cross, just like an ant could never shake an elephant's legs.

"Hand it over!" The old man's expression became more and more hideous, his eyes seemed to fall out, and his extremely pale old face twitched slightly.

Xu Han clutched the Shadow Book tightly, without the slightest intention of letting go, the flame true qi, even if it touched the slightest bit, it would immediately incinerate him. However, once the Shadow Book falls into the hands of someone else, Butterfly Shadow cannot be cured.

At this moment, his own life and death, as well as the life and death of Butterfly Shadow, seemed to be held in his hands alone.