Lin Fan no longer paid attention to those silverhorn beasts, used his skills, and continued to run inside.

I don't know how long I ran, but the miasma began to thin out, and after a while, my eyes suddenly opened up.

Seeing that there was no miasma in front of him, Lin Fan came to a valley, which was like a fairyland on earth, full of blooming flowers and plants, this valley was about a few hundred square meters, and there were unattainable stone walls on three sides, only this exit full of miasma.

Immediately after, Lin Fan felt a strong aura rushing towards his face, and he only took a few breaths, and he felt that his cultivation had increased a little.

"The concentration of aura here is at least ten times that of the outside."

He began to look around, and suddenly, a red plant in front of him caught his eye, the plant looked like a Ganoderma lucidum, but it was like a burning flame, emitting a fiery aura, and even the surrounding aura was burned into nothingness.

"This is, hundred-year-old fire reishi?! Legend has it that the fire reishi contains a kind of spiritual fire, haha, I didn't expect to find a spiritual fire here. ”

Lin Fan's mood at the moment was extremely excited, the biggest purpose of coming to the secret realm this time was for the spiritual fire, and now he could finally rest assured.

He didn't rush to take off the fire lingzhi, but continued to look around, and every few steps he took, his mood was excited, and the legendary heavenly treasures kept appearing in front of his eyes.

"Yun Shen Fruit, after taking it, it can greatly improve mental power. There is also this, the Enlightenment Fruit, which can increase the perception tenfold within 24 hours after taking it. ”

Lin Fan found two Yunshen Fruits on a small tree, and five Enlightenment Fruits on another tree, he didn't hesitate to pick them off and put them into seven delicate wooden boxes and put them into the space ring.

In addition to these, he also found some third-order elixirs, and the same was all taken away, leaving no one.

He turned every nook and cranny of the valley upside down, and found that there was no more treasure, and was about to stop there, when he found an inconspicuous piece of wood under a stone wall.

That piece of wood was dry and yellow, and there was nothing special about it at all, but the more it was like this, the more peculiar it became, after all, how could such a dead wood appear in such a place with a strong aura.

Penetrating the spiritual power into the wood, and perceiving it carefully, he found that a large amount of thunder power was condensed inside the wood, and this violent thunder power rushed directly towards his spiritual power.

Lin Fan was startled and quickly collected his spiritual power.

"Haha, this piece of wood should be the Heavenly Thunder Spirit Wood, which is inconspicuous on the surface, but it actually contains mysteries."

He had heard in class that the thunder power in the Heavenly Thunder Spirit Wood could improve the level of the martial artist's Thunder Spirit Power, and this piece of wood itself was also a piece of Spirit Wood, which could improve the level of the Wood Spirit Power, which was equivalent to getting two heaven and earth spirit objects at once.

Lin Fan put this piece of Heavenly Thunder Spirit Wood into the ring, and then came to the Fire Spirit Mushroom.

"Just absorb the spiritual fire in the Fire Lingzhi right here."

He sat down cross-legged not far in front of the Fire Lingzhi, and then slowly leaned towards the Fire Lingzhi with his right hand, and as soon as he came into contact with the Fire Lingzhi, he felt a blazing breath rushing in, and hurriedly ran the dark cyclone to absorb these hot gases.

The heat had no effect on him, and continued to rotate the dark cyclone to the extreme, absorbing it like a small black hole.

After absorbing a part of the heat energy, the spiritual fire inside the fire Lingzhi was directly pulled out by the powerful suction, and Lin Fan saw a small crimson flame rushing out, and just as he was about to escape, he was sucked into his body by the dark cyclone.

At the moment when the spiritual fire came out, the fire Lingzhi turned into flying ashes and dissipated with the wind.

The spiritual fire traveled through the meridians in the body, and the heat emitted from its body was absorbed by the dark cyclone, so there was no damage to the meridians.

This small flame entered the dantian along the meridians, and seeing that it was about to be absorbed by the dark cyclone, Lin Fan immediately burst out with all his spiritual power, controlling the spiritual fire to collide with his own fire cyclone.

Rumble!

A light sound erupted in his body, and the two began to slowly merge together, and the violent fire spiritual power escaped to all sides, and Lin Fan used his spiritual power to cover this area so as not to damage the dantian.

The fusion process was slow, consuming a day and a night, before the spiritual fire and the fire cyclone finally fused completely.

After feeling it, Lin Fan found that the fire spiritual power had become more fiery and violent, and the quality had greatly improved.

"The fire spiritual power has probably increased to the level of the third grade."

Lin Fan breathed a sigh of relief, only feeling mentally exhausted, this day and night had consumed about half of his mental strength.

After resting for another day and a night, his mental strength was fully restored.

He took out the Heavenly Thunder Spirit Wood again, and used the same method to inhale the spiritual thunder in his body, fusing it with his own thunder cyclone.

After the fusion was successful, the grade of Lei Lingli also reached the third grade.

Different from the fire spirit mushroom, this piece of withered yellow wood slowly turned green after the power of thunder left the body, and a powerful vitality gushed out from it, and finally completely turned into an emerald green spirit wood.

The spirit wood shimmered with green light, crystal clear, and Lin Fan could feel the powerful vitality from it.

"It seems that it was the power of the thunder in it that suppressed this vitality, and after I absorbed the thunder in it, the spirit wood returned to its original state."

Lin Fan put the spirit wood into the wooden box, and then put it away.

"It's been five days since I entered the secret realm, and the entrance has long been closed, so I can only wait a month before I can get out. There is no one to disturb here, so it is better to retreat and practice here for a month. ”

Thinking of this, Lin Fan calmed down, now that the quality of the fire spiritual power has been improved, he can practice the fusion with the dark spiritual power.

However, to his surprise, the dark spiritual power had also been upgraded to the third rank after absorbing some of the energy in the spiritual fire and spiritual thunder.

The two happen to be of the same grade, and it is definitely much easier to merge than before.

In order to quickly practice the Nine Styles of the Demon Sword, he directly took out an enlightenment fruit and swallowed it.

When the Enlightenment Dao Fruit dissolved in his body, Lin Fan felt a burst of clarity in his mind, as if there was a gust of wind blowing in his mind, he had a very high level of understanding, and now he had improved it tenfold, only to feel that his comprehension was unprecedentedly strong, and many things that he didn't understand in martial arts suddenly became clear at this moment.

The effect of the Enlightenment Fruit was only 24 hours, Lin Fan no longer wasted time, and directly probed the spiritual power into the dantian to control the fusion of the dark cyclone and the fire cyclone, this time the dark cyclone did not suck the fire cyclone away, but slowly fused together like the two spiritual powers of thunder and fire before.

But as soon as they were halfway fused, the two were bounced off.

"Not skilled enough, keep practicing."

Lin Fan had no distractions, kept controlling the fusion of the two, and came back if he failed.

This process consumes a lot of spiritual power, but fortunately, Lin Fan's spiritual power has almost reached the level of a high-level martial artist in order to withstand this kind of consumption.

At the same time, it also made him understand why no one could practice the Nine Styles of the Demon Sword, just by fusing dark spiritual power and another kind of spiritual power, it needed very strong spiritual power support, and the stronger the spiritual power, the higher the spiritual power needed.

Only a person like Lin Fan, whose spiritual strength is far higher than his own strength, has a chance to practice.