What made Linfeng's heart palpitate was that there were no man-eating monsters in the iron box.
There were only strange black insects crawling slowly at the bottom of the iron box.
These strange insects were black and purple, only the length of a child's pinky, a bit like a small snake.
These small snakes had two black horns on their triangular heads, and their purple pupils looked a bit demonic.
They had two small fleshy wings on their flat and long bodies, but they couldn't fly because there was a small circular hole in the center of their wings. At this time, these strange insects were densely crawling inside the iron box.
"Purple-Winged Spirit Insects!"
Looking at these strange black insects, even Linfeng couldn't really keep calm.
It was a kind of fear that was etched in his heart!
In this world, no one understood the special value of the Purple-Winged Spirit Insects better than him.
Although they had sharp teeth, they didn't eat anything, only drinking blood.
Human or Monster Beast blood!
The special thing about the Purple-Winged Spirit Insects was that there was a trace of neurotoxin in their bodies. This neurotoxin would be injected into a person's body while sucking blood. It wouldn't easily kill people, but it would paralyze people as if they were injected with anesthetics.
In the wild, many martial artists would use it as an anesthetic when they were injured.
However, one Purple-Winged Spirit Insect could be used as an anesthetic, but if used in large quantities, the numbing effect would disappear and be replaced by an unimaginable pain!
Fatal pain!
The neurotoxin of three Purple-Winged Spirit Worms was enough to make a strong adult suffer excruciating pain.
The Purple-Winged Spirit Insect was a magical insect unique to another world. It couldn't be raised or cultivated by humans.
Although it wasn't a Monster Beast, it had a special effect.
Today, Linfeng was the only one in the world who knew this effect.
That was, the toxin of more than ten Purple-Winged Spirit Insects had a body tempering effect in a pain worse than death, and there weren't any side effects.
For martial artists in the Body Cultivation Realm, the methods to assist in cultivation were nothing more than food and medicine.
In other words, food and medicine.
Eating more Monster Beast flesh could naturally fill up one's Qi and blood, but the effect of food was far less rapid and effective than medicine.
However, whether it was nourishing medicine or Blood Qi Pills and Body Tempering Pills that could increase one's Qi and blood, they all had side effects.
It wasn't unreasonable that medicine was 30% poisonous.
Even for the disciples of the large clans, there were strict rules regarding what pills they should take and how many pills they should take every month.
One could imagine how big of a commotion it would cause if something that could temper the body of a body cultivator without any side effects appeared.
This was especially true for those who were about to take the college entrance examination.
These terrifying little things were bought by Lin Feng after he left the Thunder Martial Hall.
He and Gao Hai searched many pharmacies before they finally found them. After searching through the pharmacies' stock, they only managed to buy thirteen of them.
After all, this little thing did not have much value to many people.
Only martial artists would prepare a few to act as temporary anesthetics.
When Linfeng bought it, it only cost eighty dollars, which was ridiculously cheap. After the discovery of its special effects, the price of the Purple-Winged Spirit Worm soared to twenty to thirty thousand New Dollars, and there was no supply.
Just as he was about to use these terrifying little things, Lin Feng took out a crystal bottle from his pocket. Inside the bottle was a red Vitality Pill. One pill cost 100,000 New Dollars.
This pill almost bankrupted Lin Feng. Of the 180,000 New Dollars he earned from the martial hall, he only had 30,000 left.
100,000 for the pill, 6,000 for the dinner, and 30,000 for the face-slapping fee. The expenses were really huge.
"This money is really not enough to spend."
With a sigh, Lin Feng swallowed the pill into his body.
"Come on, how can there be returns if you don't put in the effort?"
Lin Feng took a clean white towel and stuffed it into his mouth. Although it was very uncomfortable, it was to prevent himself from accidentally biting off his tongue under the severe pain later.
Taking a deep breath, Lin Feng made up his mind. He put his hand into the basin, quickly caught ten Purple-Winged Spirit Worms, put them in his palm, then closed the lid of the iron box and casually put it on the ground.
At this time, the Purple-Winged Spirit Worms that had been hungry for a long time seemed to smell blood. They couldn't wait to open their mouths full of sharp teeth and bite Lin Feng's arm. Like leeches, they quickly sucked Lin Feng's blood. At the same time, a little neurotoxin also entered Linfeng's arm.
"So comfortable …"
With the injection of neurotoxin, Lin Feng's whole body began to heat up.
After a few seconds, a strange sense of excitement and numbness filled Lin Feng's whole body. Every cell seemed to be happy. His body was light as if it was about to fly. Lin Feng felt that he was full of strength at this time, but this pleasure lasted only for five or six seconds. Lin Feng's face instantly turned pale.
It was as if he had gone from heaven to hell.
At this time, a burning sensation made Lin Feng feel as if he had been thrown into rolling magma. It was as hot as a raging flame, as if it wanted to turn him into ashes.
It was as if there were hundreds of millions of tiny insects, through his blood, wriggling in his limbs, bones, and internal organs, as if they were gnawing on his flesh and blood, bringing him pain and torture like being cut into pieces.
Severe pain spread throughout his body in an instant. This kind of pain was more terrible than death by a thousand cuts.
In particular, Lin Feng's body was still in an abnormal state of excitement. His mind was highly concentrated, which made the pain worse than death even clearer.
Lin Feng's face was distorted. His whole body trembled and curled into a ball. His face was extremely pale, without a trace of blood. He opened his eyes slightly, but closed them because he was powerless. His throat moved slightly. His hands were clenched tightly. His fingernails dug into his flesh, and bright red blood overflowed from the wound.
His whole body was trembling uncontrollably. The severe pain made him roll on the bed, but he did not dare to make a sound, afraid that his family would hear.
If his family saw this kind of miserable situation, they would be scared to death.
Time seemed to be very slow.
This kind of heart-wrenching pain lasted for more than ten minutes before it slowly disappeared.
"Huff, huff."
Lin Feng opened his mouth slightly. The towel soaked with saliva slowly slid down. At this time, even his breathing was very weak. His dark eyes slowly opened. At this time, they seemed to have turned red. His eyes were bloodshot, leaving only exhaustion and fear.
Supporting his hands, Lin Feng wanted to sit up, but his arms were soft. With a "bang", he collapsed on the bed as if he had no bones. He did not even have the strength to get up. At this time, his whole body was drenched in sweat. He was weak and even his vision was a little blurry.
Painful, it was really painful!
"Finally, I made it."
Collapsed on the bed, Lin Feng did not even have the strength to sit up. Slowly turning his head, he looked at the shriveled and dead Purple-Winged Spirit Worm on his arm. Lin Feng's eyes still had a trace of fear, but there was a burst of fear in his heart.
Every time he was bitten by the Purple-Winged Spirit Worm, it was like a horrible death by a thousand cuts. That kind of pain was worse than death. No one was willing to experience it.
More than ten minutes, but Lin Feng felt like a century had passed.
And the reward for this kind of pain was also very rich. At this time, his body was much stronger than before.
Originally, there was little Qi and blood in his body, but in an instant, it was filled.
After resting for a while, Lin Feng walked out of the small bed and stood in front of the mirror.
Under the dim light, Lin Feng's whole body was covered with dark red blood lines. Carefully counting, there were 81 blood lines. It was obvious that Lin Feng had reached the eighth stage of Physique Cultivator.