Even if it is an ordinary heaven and earth spiritual object, it is very rare, and you can't buy it if you want to, and the time is so urgent, Li Yi knows that he has no room for pickiness.

However, in his heart, there was a vague premonition that this strange stone should not be an ordinary heaven and earth spiritual thing, otherwise, why was there no record in the book?

After settling down, Li Yi put the strange stone in the palm of his hand and began to use mana to nourish it.

Refining heaven and earth spiritual objects, different from refining pills, is to emit mana outside the body, wrap the heaven and earth spiritual objects, and then under its subtle transformation, gradually form a metamorphosis, when the mana and the heaven and earth spiritual objects are completely integrated, it means that the transformation is completed, and the mana will become true qi.

However, after several attempts, Li Yi was disappointed.

A whole day passed, and his mana failed to transform, and the strange stone was like a cold iceberg, no matter how he attacked, he was unmoved.

His mana is not abundant, if it was an ordinary heaven and earth spiritual thing, it should have been partially refined, not that there was no movement at all.

This means that the strange stone is indeed not an ordinary heaven and earth spiritual object, otherwise it would not be so difficult to refine.

Li Yi couldn't help but have a trace of anticipation in his heart, wanting to see what kind of true qi he could condense into after refining the strange stone.

Continue refining.

Another day passed, and the strange rocks still didn't move.

Li Yi still refused to give up, and urged the mana as always, wrapping the strange stones layer by layer and hanging them above his head.

However, the third day passed, and the result was still in vain, and Li Yi finally became a little anxious.

The day of the Great Competition of the Outer Gate is getting closer and closer, if he can't step into the Fourfold of the Mystery as soon as possible and refine his true qi, then his chances of winning the battle with a master like Li Tiancheng will be much lower.

"Why is this happening?" Li Yi frowned, feeling incomprehensible.

Heaven and earth spiritual objects are all extremely abundant spiritual things, and even have a trace of spirituality, it stands to reason that it is easy to blend with mana, and the two are attracted to each other, but that strange stone is just the opposite.

For Li Yi's strong mana, instead of taking the initiative to accept and absorb it, the strange stone showed repulsion, and Li Yi couldn't feel the aura inside the strange stone.

This puzzled him.

After thinking about it for a long time, I suddenly thought of the turtle I met at the bottom of the Shentian River that day.

He clearly remembered that the turtle seemed to have absorbed a trace of the power of the strange stone, produced a mutation, became fast, and the turtle shell became extremely hard, and after refining the essence blood of the turtle, his mana followed a trace of transformation.

"Could it be that it has something to do with blood?" Li Yi came up with a thought.

This idea is quite ridiculous, the spiritual objects of heaven and earth have always used mana to cultivate and refine, this is the common sense of cultivation, no one will question this, Li Yi is precisely because he firmly believes in this, so he did not think too much about other possibilities.

But the constant encounters and his own experience made him have a trace of doubt.

"Whether it's right or wrong, you have to try to find out. After hesitating for a while, Li Yi decided to verify the conjecture in his heart.

So he bit his fingertip and dripped a drop of blood on the strange rock.

Half a sound passed, but the strange stone still did not move.

Li Yi was quite frustrated, if even this conjecture failed, then he didn't know how to explain it.

Just as he stood up and was about to put the strange stone back into the storage bag, suddenly, a dark purple light came out from inside the strange stone.

Carrying an incomparably majestic aura, in an instant, almost the entire room was enveloped, the tables and chairs in the room made a clicking sound, and finally turned into pieces, the walls were dented, the floor cracked, a lot of ashes fell from the roof, and the beams were a little crumbling.

At the same time, Li Yi also felt the pressure of his whole body sinking, he was wearing the heavy armor of the turtle, he felt very stressed, coupled with the pressure of the strange stones, Li Yi almost felt suffocated.

"What's going on?" he was surprised in his heart, and when he looked down, a scene that surprised him even more appeared in front of him.

I saw that the strange stone, which had always been as cold as an iceberg, actually showed a hint of melting, and a small edge and corner on it turned into a drop of dark purple molten liquid, which dripped into Li Yi's palm.

With a bang, Li Yi's skin was directly pierced.

"Ahh

Li Yi frowned, feeling a sharp pain that pierced his heart.

That drop of molten liquid melted into his flesh and blood in an instant, and his hand almost lost sensation, becoming stiff and numb, and when he looked down, he couldn't help but be surprised.

I saw that his arm turned purple at some point, and there were many black stripes on it, and his hand was already petrified.

"How could this be?" Li Yi didn't expect this situation to happen, and what worried him even more was that those black stripes were still spreading upward, and everywhere he went, his body became extremely stiff and completely unconscious.

He didn't think much about it, and hurriedly urged the mana, forcing almost all the mana in his body to his arm, trying to stop those black stripes.

But the result was that they were defeated and retreated, and those black stripes, like ancient pythons, were devastated, carrying unstoppable power, and broke through the blockade of mana in the blink of an eye.

Li Yi was completely helpless in front of it, like a lamb waiting to be slaughtered, desperately resisting, like a mantis arm as a car.

It didn't take long for half of Li Yi's body to be petrified and unable to move, and the black streaks were still spreading.

"No, I can't just die, I'm not reconciled!" Li Yi burst into a cry in his heart.

He gritted his teeth and slammed his fist into his petrified chest with all his might.

Bang!

He didn't feel a trace of pain, but the power of the strange stone in his chest was actually dispersed a little, and it merged into Li Yi's flesh and blood, and the speed of the black streaks spreading also slowed down slightly.

"Well, can it be refined in this way?" Li Yi seemed to grasp the life-saving straw, and he didn't think much about it.

Bang, bang, bang, bang!

For a while, the fists rained down, all hitting himself, anyway, most of his body had been petrified, and he couldn't feel the pain, every punch was doing his best, without the slightest tolerance.

With each punch, the power of the strange stone was dispersed a little and merged into the flesh, and before you knew it, the flesh became stronger.

I don't know how many punches I struck, but the spread of the black streaks finally stopped.

Li Yi let out a long sigh of relief, and had a feeling of picking up a life from the ghost gate.

"It's dangerous, a drop of strange rock molten has such power, what is this strange stone?"

Thinking of this, Li Yi hurriedly threw the strange stone in his hand far away, for fear that it would be affected again, the power of the strange stone was too terrifying.

He didn't dare to take it lightly, although the black streaks no longer spread, half of his body was still petrified, and he continued to punch and hit himself.

At the same time, he began to try to transport mana to refine the power of the strange stones that were scattered.

With the passage of time, the petrified half of the body finally showed a hint of softening.

After the petrified parts recovered, they became stronger and stronger, and the musculoskeletal bones became thicker and harder, like rocks.

At the same time, the mana that had absorbed the power of the strange stone also underwent a slight transformation.

In his mana, there was gradually a hint of purple, which became hot and heavy, and the operation of mana became slow, as if it was not mana that was circulating in the meridians, but boiling molten liquid.

Although the meridians were subjected to a strong burning sensation, Li Yi's heart was filled with joy, this was a sign that the mana had begun to transform and condense into true qi, no matter how painful it was, he would not frown.

Time passed little by little, and Li Yi stood in the crumbling room, tirelessly cultivating.

Little by little, the body petrified by the strange stone melt returned to normal, becoming harder, and the mana became heavier and heavier.

It wasn't until three days later that he completely refined the drop, and his body returned to normal, not only swinging freely, but also having a feeling as hard as a rock, and a punch hit the ground, only a thud was heard.

The hard bluestone ground has a deep fist mark, there is not a trace of crack around, and everywhere the fist strength goes, it is all turned into powder.

His punch was hardly forced, but it was able to have such power, completely by virtue of the hardness of his body.

And his mana has become condensed many times, if it used to be a surging river, now it is a trickle, and the condensed mana is almost twisted into a rope, and the surface volume has decreased a lot, but the qualitative improvement is a leap.

Even if it was just a slight hint of mana, the power formed was explosive, much stronger than the mana he had mobilized with all his might before.

Call!

Li Yi let out a breath of turbidity, and before he knew it, his body was already covered with a lot of black dirt.

It is the impurities that are forced out of the body after absorbing the power of the strange stone.

Among them, there are not only the stubborn impurities that have accumulated in the depths of his body since he was a child, but also some impurities left over from his recent use of Zhenyuan Dan.

The so-called medicine is three points poisonous, even if the medicinal power of the True Yuan Pill is mild, it is impossible to make an exception, on the contrary, the milder the pill, the deeper the impurities left behind, the more difficult it is to eliminate.

But the power of the strange stone is too domineering, and in front of it, all these impurities have nothing to hide, and they are forced out of the body.

After taking a bath, Li Yi felt refreshed, picked up the strange stone thrown in the corner, and continued to cultivate.

Eat a trench and grow a wisdom, now he is much more cautious, the power of the strange stone is too strong, can only be refined by stripping the cocoon, if it is a little aggressive, it will definitely be petrified all over the body, and it will be a dead end.

A drop of blood fell on the strange stone, and the strange stone erupted with a burst of purple light, and the part of the blood stained melted again, turning into a dark purple hot molten liquid.

Drip that drop of molten into the palm of your hand, and then immediately throw away the strange stone, lest something happen, a drop of molten liquid is enough for him to feel good, if he accidentally melts an extra drop, it will be a dead end.

However, the moment he threw out the strange stone, the second drop of molten liquid had already quietly formed, and with a snort, it flew down in his palm!