Haotian looked around and saw that outside the teleportation formation, there was a cave about forty or fifty meters high and a few hundred meters square, and some luminous stones were inlaid on the top of the cave, illuminating the cave very brightly, like day.

But the cave was empty. But in this cave, the dark Yanbi Mountain, densely covered with cave openings that stretched in all directions, and wisps of light of glowing stones seeped out of those caves.

It's like a labyrinth, and it looks mysterious.

Haotian visually inspected it, and there were nearly a hundred of those large and small holes. He picked a small hole in the middle of the way and stepped inside.

Although the entrance to this cave is small, it is also more than ten meters high and four or five meters wide.

After stepping into this cave, what appeared in front of Haotian was a winding tunnel. The rock walls of the tunnel are all black rocks, because there are glowing stones placed at intervals. As a result, the tunnel does not look very dark.

However, there were streams of dark energy like a gossamer, like smoke after burning, wafting through the tunnel.

"No wonder you can be free after a month, it turns out that the dark forces are so powerful here! Sure enough, it's a good place to practice dark exercises! However, I need to find the best nuclear crystal as soon as possible is the theme! ”

Seeing that in this deepest mine, there was indeed a strong dark energy, which was beneficial to Haotian's cultivation of magic.

But the Dao power in his body was greatly reduced, and the idea of crossing the Holy Spirit came to his mind; "Haotian, you quickly switch to the Demon Thought level. In such an environment, not only will your Dao power cultivation thoughts be unbearable, but I will also feel uncomfortable.

"Oh!" Listening to the Holy Spirit, this is the truth.

As soon as the drops of divine consciousness moved, he switched to the level of demonic thoughts, and bursts of dark essence light poured out of him, looking like a dark magician.

Just like the radio station switching channels, Haotian has become another him at this time.

Ordinary bloodline cultivators in the Holy Blood State don't need nuclear stone and nuclear crystal energy, they only need bloodline energy.

Ordinary magicians absorb elemental energy, although they need nuclear stones and nuclear crystals, but they do not need dark energy.

Only magicians who practice dark magic need dark energy.

With such a thick dark energy in this well, only special dark magicians can absorb and cultivate.

Haotian cultivates the magic of death, and is not afraid of strong dark energy. After switching to the level of demonic thoughts, it was obvious that the ethereal and withered saplings in his mind automatically sent bursts of attraction, sucking the dark energy around him into Haotian's mind.

Haotian wanted to stop the tree, but he couldn't do anything.

Walking in the winding tunnel, Haotian held a transparent token in his hand that could test the energy of the nuclear crystal. This transparent token was given to him by the emaciated Blood Demon who had guided him, and it could be used to measure the presence of nuclear crystals and the level of nuclear crystals.

This winding tunnel is not isolated, but is connected to many transverse and longitudinal tunnels. Later, Haotian turned around, and he didn't know that he had walked to the top of the tunnel.

However, he has a principle, which is to go to places where the dark energy is strong.

As Haotian continued to go deeper, the test token in his hand began to show that there were scattered low-grade nuclear crystals nearby. Moreover, there are also a handful of dark magicians, digging for scattered low-grade nuclear crystals.

Haotian didn't dare to be interested in the low-grade nuclear crystal, he tried his best to bypass those dark magicians and continued to walk towards the depths of the tunnel.

The deeper you go, the richer the dark energy becomes. Ordinary sixth-level bloodline cultivators, not to mention digging nuclear crystals in the depths of this tunnel, they can stay here for an hour or two, even if they are very powerful.

Haotian was the opposite, switching to the realm of demonic thoughts, and the richer the dark energy, the more comfortable he felt.

As Haotian continued to go deeper, the test token in his hand was displayed scatteredly, and there were medium-grade nuclear crystals. In addition, there are also sixth-level dark mages who are digging for nuclear crystals.

Haotian was invisible, watching the two dark magicians of the Blood Demon Clan dig up the mid-grade nuclear crystal.

It is found that it is not easy to dig out a medium-grade nuclear crystal.

At the same time, it also clarified some of the essentials of mining nuclear crystals. Then, continue to the place where the dark energy is strong.

Walking and walking, suddenly, a barricade was set up in the middle of the tunnel, and it read; 'The dark energy ahead is abnormal, and the miners stop! ’

"Dark energy anomalies?" Haotian is puzzled! After thinking about it, he stepped over the barricade and continued to walk forward.

Although there were roadblocks to prompt, Haotian still found that there was a dark mage digging for nuclear crystals.

However, all the dark mages who cross the barricades are basically level 6 and 7 mages. And, it's a group of three or five.

The test tokens in Haotian's hands successively showed the existence of high-grade nuclear crystals. Generally, where there are high-grade nuclear crystals, there are three or five dark mages digging. Some of them also have eighth-level magicians sitting in town, looking at their appearance, while digging, they are still watching out for something?

Although Haotian felt puzzled, he continued to walk forward. However, he found that the bones of the dead were more and more numerous, scattered all over the place. It seems that a lot of people died.

"Could it be that there are other anomalous creatures in this tunnel?" Haotian couldn't help but guess. So, ask the heaven-swallowing evil spirit in your mind; "Sky Swallowing Demon, have you heard of any anomalous creatures in the mines?"

At this time, Haotian was in the midst of demonic thoughts, unable to communicate with the Crossing Holy Spirit, and now, he could only ask the Heaven Devouring Evil Spirit.

"I really don't know about this? Is something happening? The Heaven Swallowing Spirit replied with his mind.

"Oh! Nothing! After Haotian agreed, he thought about it and said; I'm just asking? Well......? Sky Swallowing Demon, can you feel what's going on around me? ”

"No, unless you let go of some of your thoughts!" The Heaven Swallowing Spirit replied with his mind.

"That's it!" Haotian thought about it, it was not a big problem to let go of the demonic thoughts, the most important thing was that the thoughts of the heaven-swallowing evil spirits were not only very evil, but also extremely smelly, which made Haotian unbearable! So he said it bluntly; "Heaven Devouring Evil Spirit, it doesn't matter if you let go of some of your demonic thoughts, it's just that your thoughts have a foul smell, and I can't stand it."

"It doesn't matter, I can control my mind not to spread out in your mind!" When the Heaven Devouring Evil Spirit heard this, he happily sent a thought.

"Really? Also, you can't pit me like you did last time! ”

Haotian has always been uneasy about the Heaven Swallowing Evil Spirit, but now he needs the help of the Heaven Swallowing Evil Spirit. Even if you don't believe, you have to pretend to believe.

"Haotian, I thought about it, we are in the same boat now! To pit you is to pit myself! Believe me! ”

"Heaven Devouring Demon, I have made another agreement with the Crossing Holy Spirit that as long as I can use the power of the Dao Seal True Source in my mind, I will let him go unconditionally. But before crossing the Holy Spirit did not leave. You have to help me unconditionally, and my business is its business.

Or, we also agree like this, what do you think? ”

"Okay!" Feeling the idea of devouring the heavens, it seemed to be a little excited.

"Okay! That's it! I let go of some of my thoughts! Haotian said, meditating on the Heaven Devouring Evil Spirit to use some of the demonic thoughts in his mind.

"Haotian? Where is this? As soon as Haotian let go of some of his demonic thoughts, the Heaven Devouring Evil Spirit sensed that the environment around him was abnormal.

"Sky Swallowing Demon, I'm now in the underground mine, from now on, you help me keep an eye on what's going on around me!"

Haotian felt that the depths of this tunnel were very strange, and he had to be helped by the Heaven Devouring Evil Spirit. Otherwise, it's really hard to deal with unexpected things.

"Hmm!" The Heaven Swallowing Spirit replied.

"Good!" Haotian said, and continued to let go of some of the demonic thoughts, letting the Heaven Swallowing Evil Spirit control it.

When the Heaven Devouring Evil Spirit controlled some of Haotian's demonic thoughts, Haotian felt that half of his head was not his own, and he was unconscious.

"Haotian, it's not good!" Soon after Haotian let go of some of his demonic thoughts, the Heaven Devouring Evil Spirit transmitted an idea.

"Not good? What do you mean? Haotian was vigilant.

"Haotian, there may be dark creatures here!"

"Creatures of darkness?"

"But with me, don't worry. The dark energy here is very strong, especially suitable for you to practice dark magic. Moreover, I feel that not only is there a superb nuclear crystal here, but there is also a demon king-level demon heart thousands of kilometers away! ”

The demon heart in the mouth of the heaven-swallowing evil spirit, in the mouth of the magician, is called the demon path heart.

"Demon King-level Demon Dao Heart?" When Haotian heard this, he was surprised and delighted.

If you want to cultivate true dark magic, you must use the Demon Dao Heart.

This is not recorded in the Grim Reaper's Grim Records. However, when Haotian met some magicians on the way to Linhei City, he heard them talk about it.

The true source of the Dao Seal of the Demon Dao Heart and the Cultivation Realm is different.

The true source of the Dao Seal is the inheritance of the experience, exercises, energy, and other aspects left behind by the strong or powerful person who cultivates the Dao power.

However, the demonic heart comes from evil energy, which can only be passed down by bloodline inheritance. Therefore, the Demon Dao Heart is basically innate.

Anyone with a demonic heart, among their ancestors, there have definitely been people who have committed great evils and sins, or great demons.

There are very few pure-blooded humans like Haotian with demonic hearts.

In the cultivation realm, Haotian had never heard of anyone with a demonic heart.

In the Blood Demon Realm, the pure-blooded human with a demonic Dao heart is only one in ten million. Therefore, if pure-blooded humans want to cultivate true dark magic, they basically have to rely on robbing the demonic Dao hearts of other races to cultivate. It is very rare to cultivate true dark magic on its own.

Not only are there few pure-blooded humans with demonic Dao hearts, but even if they are blood demon clansmen, the number of people with demonic Dao hearts on their bodies is one in a million. Moreover, in this one-in-a-million Blood Demon Clan, there are even fewer people who have a truly high-level, good Demon Dao Heart.

In fact, Haotian had long wanted to obtain a high-level demon Dao heart and cultivate into real dark magic, so that he would not be bound by the magic of death.

(End of chapter)