Xiao Fei had been busy in his spatial realm for over a month, finally gathering all dozens of materials.
With a wave of his hand, dozens of materials floated in the air, like scattered stars.
"Converge!"
These scattered starlike points immediately gathered and began to fuse, forming a ball the size of a fist.
The ball spun rapidly in the air, and suddenly, with a "boom," it exploded, emitting a dazzling light.
The explosion generated a massive shockwave, blowing away a large handful of Xiao Fei's hair and leaving him covered in dust.
He hadn't expected such a powerful impact from the explosion of such a small amount of immortal medicine; it was somewhat beyond his expectations.
Taking out a jade slip, he recorded the components that had caused the explosion. He planned to study them further when he had time, as there might be unexpected gains.
After clearing the remnants of the explosion, he prepared another batch of materials and began the second experiment.
Half a month later, a pill the size of an egg appeared in Xiao Fei's hand.
This was the result of his efforts over the past half month, but it was far from his expectations. The effect was somewhere between present and absent, which was naturally unacceptable.
After two consecutive failures, Xiao Fei summarized his experiences, adjusted the formula and synthesis method, and began the third refinement.
Another half month passed. This time, the finished pill in his hand was only the size of a thumb, emitting a crystalline luster.
He infused his immortal sense into it, sensing it carefully, and nodded slightly. It was not bad.
Comparing this finished product with the Nine Extremes Profound Origin Fruit he had consumed before, Xiao Fei could roughly estimate its potency.
Its effect was about one-tenth of that of a Nine Extremes Profound Origin Fruit.
In other words, it could increase the breakthrough probability by about 0.2 percent.
One Nine Extremes Profound Origin Fruit, after adding dozens of other materials, could refine about ten such pills.
The combined effect of ten pills would be exactly two percent!
This...
He had spent so much effort and materials, toiled diligently, only for the result to be the same as not refining anything. He wasn't sure if this was progress or regression.
However, he had no intention of giving up!
He readjusted the formula, changed the combination of various materials, and tried again.
The fourth attempt yielded no change in effect; it was still a wasted effort!
The fifth attempt finally saw a slight improvement in the effect, with each pill reaching about 0.3 percent.
But this was still not enough...
The sixth attempt...
...
On the eighteenth attempt, Xiao Fei held a crystal-clear immortal pill in his hand, a smile on his face.
After seventeen failures, the effect of this single pill had reached half that of a Nine Extremes Profound Origin Fruit.
This meant that consuming one pill could increase the breakthrough probability by ten percent.
One Nine Extremes Profound Origin Fruit could refine ten such pills, effectively increasing the potency fivefold.
He then consecutively refined two more pills, but their effects remained around half that of a Nine Extremes Profound Origin Fruit, unable to improve further.
By this point, two Nine Extremes Profound Origin Fruits had been used for experiments, with one remaining in his possession.
Without hesitation, Xiao Fei refined the last Nine Extremes Profound Origin Fruit into ten immortal pills.
Three Nine Extremes Profound Origin Fruits yielded a total of thirteen immortal pills.
The total efficiency increased the breakthrough probability by thirteen percent, more than doubling the original three fruits.
His hard work had not been in vain; the rewards were quite good.
Xiao Fei decided to let his clones try the pills first to see if there were any adverse reactions.
After all, the effects he had deduced were only theoretical and not yet verified.
He had a total of ten clones. Except for Zhang Yi, who had successfully broken through to the Immortal Monarch realm, the others were still hovering at the peak of the Heavenly Immortal realm.
Over these hundreds of thousands of years, his clones had attempted breakthroughs many times, but all had failed without exception.
The transition from Heavenly Immortal to Immortal Monarch was too difficult!
As for which clone would test the medicine, he had already decided.
Naturally, whoever was the most awesome would test it!
Xiao Diaodiao's bald head was the shiniest, he was the most awesome, and his luck was the strongest. The test subject candidate was naturally him.
He took the pill and sat on the peak of the immortal mountain, beginning his meditation in preparation for a breakthrough.
First, he needed to meditate and cultivate to stabilize his realm and adjust his state. This alone took ten years.
When his body and mind were in the optimal state, he took out the pill and consumed one, putting the rest away.
Although he had thirteen pills in his hand, if consuming one pill could lead to a successful breakthrough, there was no need to waste more resources.
Upon entering his mouth, the taste of this pill was a far cry from directly consuming a Nine Extremes Profound Origin Fruit.
The pill had a strong, ordinary taste and did not melt in the mouth. After he swallowed it, it began to digest slowly, transforming into streams of profound energy.
The efficacy of these profound energies, after being refined, was indeed close to what he had predicted.
However, he did not achieve a breakthrough with it and had to continue meditating to冲击 his realm.
When the medicinal properties of the first pill were almost depleted, he consumed the second pill.
But after this pill went down, he immediately felt a difference; the efficacy had decreased by a notch.
It was only about eighty percent of the entire pill's potency.
The effect of each pill he refined was the same, and now the efficacy of the second pill had decreased.
This could only prove that his body had developed some resistance to the pills.
The second pill still failed to help him break through, so he had to take the third one.
The third pill's effect was even weaker, likely only half of its original potency.
Based on the current situation, the more pills he consumed, the weaker the effect became.
Three pills were already close to the limit. Consuming a fourth pill might still have some effect, but it would be too wasteful.
He couldn't afford to waste it now!
In this way, refining the Nine Extremes Profound Origin Fruits into pills, on the surface, increased the efficacy fivefold.
However, in reality, the effect was not that good, and it would cause resistance. For each person, consuming three or four pills was the limit.
Xiao Fei felt that each person could consume a maximum of three pills. If they still couldn't break through, there was no need to waste a fourth pill.
It would be better to use the saved pills to give more people a chance to break through.
Although this had drawbacks, it also had advantages. Overall, the benefits outweighed the drawbacks.
Firstly, some people might only need to consume one pill to successfully break through, not needing a second or third.
This saved a lot compared to consuming an entire Nine Extremes Profound Origin Fruit.
Secondly, even excluding the factor of resistance, the overall efficiency had still significantly improved.
Finally, what made Xiao Fei happy was that after consuming three pills, he had finally succeeded in breaking through!
Hahaha...
He now had two Immortal Monarch clones!
At this moment, Xiao Fei had ten pills left in his hand. If each person took two, he could distribute them to five more people.
If each person took three, he could allow three people to attempt a breakthrough.