It is not surprising that there is groundwater under the mountain peak, and the so-called strange mountains, strange rocks, and strange water belong to a great wonder of heaven and earth. The strange thing is that this mountain peak does not have any aura and water, not only is there no grass, but the mountain is also cracked because of drought.

Hei Yichen immediately decided to go down there to find out.

The sound of rushing water slowly and clearly came into their ears, and all the stones around them turned into soil layers, and they fled quickly, and it didn't take long to dive to a depth of more than ten zhang in the soil layer.

Finally, what appeared in front of them was an underground river.

The river is so wide and long that it is impossible to see the end, as if it has cut a mountain from the ground alive and left the whole majestic mountain floating on the water.

As soon as you get above the underground river, the feeling of cold and heat becomes more and more obvious. When it's hot, it's like roasting on a volcanic crater, and when it's cold, it's like falling into an ice cave, and the three of them can only use their Xuan Qi to resist this scorching heat and cold, otherwise it will be difficult for them to resist this bitter cold and heat that surpasses everything else.

Lu Shi said: "How can I feel the waves below, and there is a faint sound of fighting." ”

Hei Yichen inquired about the environment and said, "This river seems to be connected to the lake outside. You see that the aura in the soil is exhausted, but the aura in this lake is very abundant. According to this theory, these auras are either replenished from the outside, or there should also be yin and yang fire at the bottom of this river. ”

Li Li nodded and said, "Neither Lu Shi nor I are fire attributes, so we can't find out." Boss, can you feel the flames?"

Hei Yichen shook his head and said, "Although I have the attributes of the five elements, some attributes have not been completely stimulated, and my sense of fire is not sharp enough. Let's let the sword spirit come out. ”

"Lao Hei" had already known from Hei Yichen that there might be a fire of yin and yang, and he had gossiped out of his eyebrows, and felt it for a long time before he said: "This is just a continuation of the lake outside, there is no light, and the fire of yin and yang is not suitable for a long-term stay here." I think the aura here is replenished from the outside. ”

Hei Yichen immediately understood the meaning of "Lao Hei"'s words: since it is the fire of yin and yang, it must be supplemented by yin and yang, plus aura as a guide, in order not to be silent for a long time.

In the lake outside, the scorching sun can shine through the lake into the bottom of the lake, and the heat around it, like the aura between heaven and earth, can be completely sucked into the bottom of the lake. Therefore, the lake is the best resting place for the fire of yin and yang. On the contrary, it is the dark river under the mountain peak, the yin qi is too heavy, and it is not suitable for the fire of yin and yang to "live".

Hei Yichen asked, "In that case, why is the temperature here changing?"

"Lao Hei" said: "Isn't there a competition for the fire of yin and yang outside, the fire of yin and yang should feel bad and start to scatter and flee." For I sensed a flame and was fleeing in the direction of the depths of this hidden river. ”

Hei Yichen asked in surprise, "Can you catch it?"

"Lao Hei" patted his chest and said in a stinky voice: "In order for you to cultivate into the fire of yin and yang, and finally have all the five attributes, this seat must come out." After you cultivate to the five attributes, you will be able to stimulate the five attributes of the Black Sky Slashing Divine Sword, and this seat will also benefit at that time. ”

It turned out that the strong Lingyun said for a long time in front of him, or for his own benefit.

This time, even Lu Shi couldn't listen to it, and couldn't help but roll his eyes.

"Lao Hei" didn't care about the image, and shouted and said: "Xiao Hei, come out quickly and build a yin and yang array for Lao Tzu on this water." ”

"Xiao Hei", who was begging for benefits from the Chaos Tower, had no choice but to come out and muttered, "That old bastard slammed the door, he refined the mark of the incinerator and got so many benefits, and he refused to give me a little." ”

Li Liqi said, "Can you still get benefits from refining the imprint?"

Xiao Hei said: "Nonsense, your level is so weak, to leave a mark in your weapon, you need to extract a wisp of divine consciousness as an introduction, and you also need to inject the Xuan Qi Formation, do you think you can leave a mark casually? The incineration furnace is a celestial weapon! If you want to use your own mark to control a celestial weapon, can the imprint engraved in it be simple? Besides, the Eastern Emperor Jun used to be the Eastern Emperor Divine Venerable, and the mark left by a Divine Venerable can be imagined how terrifying it is. ”

These words shocked Hei Yichen.

When he went in to erase the mark, it was obvious that he felt a fierce struggle coming from inside the incinerator furnace, if it wasn't for the chaos tower suppressing him and couldn't move, if it wasn't for the Eastern Emperor Jun being far away in the sky, maybe they couldn't suppress that terrifying aura at all, and in the end, they couldn't erase the terrifying mark.

This girl!

got the immortal qi, and also refined a wisp of divine consciousness of the gods, what a great chance, I actually swallowed it alone.

Thinking that he had been haunted by that terrifying fairy aura, Hei Yichen couldn't help but swallow a mouthful of saliva with a "grunt".

When "Lao Hei" heard this, he also began to join the action of denunciation, even Lu Shi was indignant, for him, for Hei Yichen.

For a while, there was a lot of scolding here, and the most diligent words appeared, naturally the three words "old bastard".

"Lao Hei" felt that the fire of yin and yang was getting closer and closer, so he returned to the topic and said, "Xiao Hei, don't scold you." It will also be good for Yichen if the old bastard can regain his strength, and next time we will knock some gravel down from his Chaos Tower. Hurry up and build a yin and yang array, build a big net, and let's catch turtles in an urn. ”

Knock some gravel down?!Ruthless enough!

"Little Black" happily went into action.

"Old Black" continued: "Yichen, you wrap them in chaotic qi and dive to the bottom of the lake to have a look. There should be a pleasant surprise. After the two yin and yang fires break in, we will close the door and fight the dogs. ”

The fire of yin and yang can burn Xuan Qi, immortal Qi, and can also burn the magic power of gods, fortunately, the Qi of Chaos is the source of all things, only it can transform other attributes, and no other attribute can incinerate and transform it.

"Surprise?"

Hei Yichen saw that "Lao Hei" was selling off the shelves as always, and Hei Yichen didn't ask any more questions, and took the two brothers to dive under the water together.

The water is very cold and hot, sometimes boiling like boiling water, sometimes it is as cold and biting as the water of the Jiuyou River, even if it is wrapped in chaotic qi, it cannot stop this strange temperature difference.

Several people kept diving, and it took a full meal of tea to dive to the bottom of the lake.

Don't look at this short time, it's close to a thousand feet of vertical distance.

Before the three of them approached the bottom of the lake, they felt a starry sky twinkling under the lake, and the stars were dotted and blinded.

The bottom of the lake was full of black boulders, so black that it could barely penetrate the light, but the stars were projected from the boulders, as if inlaid with a pair of cat's eyes. If you look closely, it seems that your consciousness can sink into it and fall into the pain of hell reincarnation.

"Poof!"

Lu Shi opened his mouth and spat out a mouthful of blood, in a trance, his eyes were foggy.

Hei Yichen shot again and again, and hurriedly sealed Lu Shi's acupuncture points.

Lu Shi woke up from the psychedelia in an instant, and exclaimed in fear for a while: "What the hell is that, I just looked at it, and I lost my mind and almost entered the demon path." ”

Hei Yichen pointed to the bottom of the lake and said, "Those are the cores of hell, and they are the purest black, without any impurities. ”

Before Hei Yichen was in the Valley of Death, he encountered the Earth Demon and obtained an olive core-shaped Hell Core from the Fire Whip Earth Demon.

The core of hell is a drop of essence that is slowly condensed by high temperature calcining, and after tens of millions of years, this drop after drop of essence is condensed and becomes the core of hell. It is generally found in lava swamps, but also in hot craters. The place where the core of hell is most is in the Fire River of the Nine Shadows Continent.

There are two most famous rivers in the Nine Shadows Continent, one is called the Fire River, the other is called the Xuanbing River, one is extremely cold, and the other is very hot. It is precisely because of the existence of these two rivers that 99% of the living environment in the Nine Secluded Lands is extremely harsh, either across the desert or covered by snow-capped mountains, with very little vitality and aura. Many places are so barren that there is no grass and spiritual flowers do not grow, which is only suitable for the survival of the tribes in the Nine Secluded Lands.

However, these two rivers produce treasures that everyone envies, the river of fire produces the core of hell, and the Xuan Bing River has endless cold ice water in the center of the earth.

These two kinds of treasures are good materials for refining, and they are also cultivators of water attribute and fire attribute, and they are extremely rare for refining the body.