There aren't too many tricks and techniques recorded in his mind. Just picking out one at random would be enough for Shen Yizi to digest.

This time, Yichang took out a book on insect taming called "The Book of Insects".

Don't be fooled by its simple name. The content is all-encompassing and varied. It is a comprehensive encyclopedia about insects.

Gu worms are also a kind of insects, so they are naturally included.

What Shen Yizhi was going to refine this time was a highly random poisonous insect - the Nine-Poisonous Gu.

She chose a location, dug a deep pit, buried a pottery jar with a large belly and a narrow mouth in it, used the pottery jar as the center of the formation, and began to set up the formation.

After carving the array pattern, Shen Yizi placed homemade spirit stones at the center of the array and various nodes to activate the array.

In an instant, the complex and mysterious formation patterns were penetrated by spiritual energy, appearing and then quickly disappearing.

This formation is called the Three Fighting Formation. Its function is pretty useless as it can only attract bugs and optimize the bugs within the formation. But if it is used to refine Gu, it is perfect.

Afterwards, Shen Yizhi repeated the previous operation and set up three-fighting formations in the other eight places. The nine three-fighting formations were connected to form a large three-fighting formation with a stronger effect.

Each three-fighting formation can attract a large number of insects, which will enter the pottery jars and fight and devour each other until the poisonous insects are born.

Nine formations will give birth to nine poisonous insects. Then she will put the nine poisonous insects into a jar and let them continue to fight and devour each other. The one that survives successfully is the Nine-Poisonous Gu! Nine is the extreme number, representing infinity, which means that this kind of poisonous insect is born from countless poisonous insects.

However, because there are too many insects attracted during the refining process and they have no definite direction, no one knows what the final poisonous insects will look like until the last moment.

Even the strength and toxicity of the insect cannot be determined.

The refined poisonous insect may be very powerful, or it may just be cute.

That's why she said this was a kind of poisonous insect with a high degree of randomness.

After setting up the formation, she only needs to drop a drop of her own blood and essence into it every two hours. The rest of the time, she doesn't need to look after it specifically.

But the distances between the nine formations were not short, and it would take her a lot of time to feed blood to each one.

Fortunately, she now has a donkey for transportation.

After being fed with spiritual food and spiritual springs, as well as being baptized by the spiritual energy in the space, although the donkey has not yet been reborn, its intelligence has obviously increased a lot, and it can understand some of her simple instructions.

After riding the donkey around each formation, the donkey memorized the route. After that, Shen Yizi no longer needed to give her instructions. She only needed to sit on the donkey's back and get off to feed the poisonous insect with blood after reaching the destination.

She can take this opportunity to practice and recover on the donkey's back.

After all, what is fed every time is essence and blood, and every drop of essence and blood in the body is precious and cannot be easily wasted.

Fortunately, she had the spiritual spring and a large number of blood-replenishing and restorative pills as her backup. Otherwise, let alone her, a mere Qi-refining cultivator, even those in the Foundation Establishment stage would not dare to do this.

I just hope she has better luck and the poisonous insects she refines won't be too useless.

Otherwise it would be unfair to her for working so diligently in bleeding.

Two days passed in a flash, and the poisonous insects in the nine three-fighting formations were born.

The last step, Shen Yizi planned to complete in space.

Bury the old man, set up a Gu formation, and put nine Gu worms in it.

Feed it a drop of essence and blood every hour.

This way, the consumption is even greater.

While practicing, Shen Yizi frantically swallowed spiritual spring water and ate a large amount of blood-replenishing spiritual food in order to replenish as much of his consumed essence and blood as possible.

With such rapid consumption and replenishment, one day later, she broke through to the third level of Qi Refining, and the fight between the poisonous insects in the pottery jar also reached the final stage.

She used her spiritual sense to check and found that there were only two poisonous insects, a purple poisonous scorpion and a red frog inside, and they all looked very difficult to deal with.

When the time for bloodletting came, she dripped in a drop of blood.

This drop of blood, like a catalyst, instantly escalated the fight between the last two poisonous insects and made it extremely fierce.

Shen Yizhi watched calmly, waiting for the moment when the Gu would be ready.

Finally, there was only one poisonous insect left in the pottery jar. To her surprise, the red frog was the one that survived.

However, the red frog was also covered in wounds, lying motionless at the bottom of the jar, and its breath was getting weaker and weaker.

Are you going to die?

The "Insect Classic" only says that nine poisonous insects devoured each other, and when the last one was left, the Nine Poisonous Insects were naturally born, but it did not mention the current situation.

Yichang was not around at the moment, and Shen Yizi had no one to discuss with. After thinking for a while, he continued to drip blood into the pottery jar.

The blood essence fell on the red frog and was absorbed by it. At the same time, the blood color on its body slowly faded, revealing a jade-like whiteness, but its aura became stronger. It seemed that some kind of magical transformation was taking place! With just one drop of blood essence, only a small part of the red skin on its body faded, which meant that it needed more! Shen Yizhi had no choice but to continue bleeding.

Two drops...three drops...four drops...

The red color on the red frog's body melted away like ice and snow encountering the sun, revealing its snow-white base color. However, when this change reached its head, the speed suddenly slowed down.

She had to provide several drops of blood to make the blood color fade a little.

However, things have progressed to this point, wouldn’t it be a big loss to give up?

Giving up halfway is not an option, Shen Yizi could only grit his teeth and continue to persevere.

The pills and spiritual food were running out, so Shen Yizi started to move on to the spiritual medicines that replenished the blood and qi.

Eat it raw directly!

Later, her face became paler and paler. When the blood tank was almost empty, the last bit of blood on the frog's body faded away and turned completely white! The whole body was as white as jade, like a jade sculpture, and the two eyes were blood-red and crystal clear, like two red gems.

Overall, it is no bigger than a grape, delicate and small, crawling quietly and motionless, just like a jade sculpture.

Nine poisonous poison, it’s done!

Shen Yizhi squeezed a drop of blood from his fingertips to make it recognize its master, completing the last step.

When she sensed that a weak but solid connection had been established between her and the Nine Poison Gu, she fainted with relief.

The Nine Poison Gu jumped out of the pottery jar, lay on the edge, stared at Shen Yizi for a while, then jumped onto her chest and lay there motionless.

When Shen Yizi woke up again, it was already the next day.

There was also a feeling of weakness as if the body was hollowed out. After all, so much energy had been lost that it would not be recovered in a short time.

But fortunately, it's not serious.