Mortal: Even with a Heavenly Spiritual Root, I still have to try and get my hands on the Little Gree

After being teleported to Silver Shark Island, Mu Yu did not waste any time and continued on her way.

After spending more than half a month, Mu Yu successfully arrived at Biling Island.

Compared to his first journey, Mu Yu's speed was about twice as fast this time. The secret technique, which was improved from the Invisible Escape Technique, did indeed make Mu Yu's sword escape speed much faster.

Upon arriving at Biling Island, Mu Yu's first action was to modify the formation, and then he ordered over a hundred Core Formation stage puppets to mine.

As for the tens of thousands of Gold-Eating Insects, because they haven't fully recognized their master, Mu Yu still finds it somewhat inconvenient to control them. Currently, he simply places them in a huge jade insect chamber and feeds them tens of thousands of low-grade spirit stones every few days.

The large number of low-grade spirit stones that Mu Yu obtained while mining finally found a use, instead of piling them up and affecting the mining efficiency of the Core Formation stage puppet.

Next, Mu Yu took out the materials he had purchased from Tianxing City from his storage bag and continued to refine the Core Formation stage puppet.

More than a month later, the thirty-seven Core Formation stage puppets were completed and immediately joined the mining team.

She still had other materials, but Mu Yu had already used up all of them, which were the most crucial element for crafting the puppet: the soul of a demon beast.

If no demon beast soul or similar element is added when creating a puppet, the resulting puppet will lack any spirituality and will resemble a regular magical artifact, requiring constant manipulation with divine sense.

Only puppets with spirituality can be controlled by a wisp of a split soul and exert combat power no weaker than that of ordinary Core Formation stage cultivators.

With Mu Yu's current divine sense cultivation at the third level of the Great Evolution Technique, the limit he can control is over three hundred puppets.

But that's the limit. Under normal circumstances, Mu Yu would find it very difficult to control about two hundred puppets in a single battle.

However, if it's used for mining, then it doesn't matter.

If it weren't for the need to separate high-grade and mid-grade spirit stones for storage during mining, Mu Yu wouldn't even need to use his divine sense to control them. He could simply set up an array that could summon puppets, allowing them to mine the minerals autonomously.

Of course, Mu Yu had also tried setting up formations to make the puppets mine automatically.

After that, Mu Yu needed to go to Spirit Stone Mountain every now and then to use his divine sense to distinguish between mid-grade and high-grade spirit stones, and then pick them out.

One method involves selecting each soul individually with divine sense, while the other allows the divided souls to move freely.

After comparing them, Mu Yu decided to let the divided souls categorize themselves.

Anyway, controlling the puppet to mine consumes divine consciousness very slowly. I only need to collect the fragmented soul every few months and then rest for a few days.

Having the divided soul control the puppet to mine in this way can be considered a form of training for the divine consciousness.

"It's a pity that it will be more than ten years before Han Li forms his core. Otherwise, it would be a more comfortable option to bring him over to work for us."

"Sigh, I guess I'll just have to work hard for another ten years or so."

……

Time always flies when you're in seclusion; eight years passed in the blink of an eye.

After devouring low-grade spirit stones for more than eight years, the Gold-Eating Insects have finally begun to reproduce again.

This is the first time that the Gold-Eating Insects have reproduced without relying on the effects of the Rainbow Grass.

Although Mu Yu had guessed that it would succeed, he was still quite excited when it actually did.

After breeding, the number of Gold-Eating Insects suddenly expanded to millions, and their bodies took on two colors, gold and silver, each occupying fifty percent of their body area.

"It seems that the practice of devouring and breeding Rainbow Grass is a heretical practice. The true evolutionary path of the Gold-Eating Insect should be to devour spirit stones."

"If it weren't for a giant spirit stone mine, even I wouldn't be able to support you all."

Looking at the more than 800,000 gold and silver dual-colored gold-devouring insects that his blood pact had bound him to, Mu Yu decided not to expand the number of gold-devouring insects.

Mu Yu didn't let the remaining 200,000 Gold-Eating Insects hatch. Instead, he used a restriction to keep them in the egg state, intending to leave them for Han Li and see what kind of trouble he could cause in the end.

If these gold-devouring insects were to multiply several times over, it would be truly unaffordable to raise them.

Moreover, the existing 800,000-plus Gold-Eating Insects are already sufficient for advancing to mature forms.

Mu Yu knew roughly how to advance to the mature form of the Gold-Eating Insect.

The main principle is to infuse mature Gold-Eating Insects with the spiritual energy of the five elements and the power of heaven and earth, which allows the Gold-Eating Insects to grow at three times the speed.

The main reason Mu Yu used low-grade spirit stones to feed the Gold-Eating Insects was that he had too many low-grade spirit stones and his storage bag was not big enough. Secondly, he referenced the Tuwu tribe's method of accelerating growth.

The spiritual energy of the five elements and the power of heaven and earth are all present in spirit stones; it's just a matter of how much of each is present.

The gold and silver Devouring Insects don't actually provide a particularly strong boost to Mu Yu's combat power right now. Although their numbers are considerable, they're still far from enough to deal with Nascent Soul stage cultivators.

As for the Core Formation stage...

Mu Yu no longer takes Core Formation stage cultivators seriously. Even someone like Wen Tianren is no match for his more than one hundred Core Formation stage puppets.

The real reason Mu Yu chose to form a blood pact with these 800,000+ Gold-Eating Insects was actually for mining.

This giant spirit stone mine is so huge that Mu Yu doesn't know how much longer he would have to mine it if he relied solely on Core Formation stage puppets.

Mu Yu now has more mid-grade spirit stones than he can ever use, and he also has two or three hundred high-grade spirit stones. Now, all Mu Yu wants to do is find that top-grade spirit stone.

And this depends on these gold-devouring insects.

Mu Yu took out the insect-controlling technique that Linghu Laozu had found from his storage bag and practiced it for about a month.

Only after confirming that the Gold-Eating Insects would not lose control and start gnawing on the top-grade spirit stones did they throw the more than 800,000 Gold-Eating Insects into the giant spirit stone mine.

More than 800,000 gold-devouring insects merged into the giant spirit stone mine and, under Mu Yu's control, began the work of searching for high-quality spirit stones.

Before long, the surface of the entire spirit stone mine was riddled with holes, and the mine tunnels dug by Mu Yu's more than one hundred Core Formation stage puppets were thus destroyed by the Gold-Eating Insects.

But it doesn't matter, the Gold-Eating Insects have their own channels.

The swarm of over 800,000 gold-devouring insects may seem like a large number, but it appears insignificant within the context of a giant spirit stone mine.

However, the efficiency of mining high-level spirit stones has obviously increased a lot. In just half a day, the Gold-Eating Insects have mined three high-level spirit stones for Mu Yu.

In the following period, Mu Yu's Core Formation stage puppet was completely idle, and the Gold-Eating Insect swarm took over their mining work.

Mu Yu, on the other hand, began to cultivate seriously after a long absence.

……

This situation lasted for about ten years.

In the past ten years, Mu Yu has officially surpassed a thousand high-grade spirit stones, and has also unearthed two top-grade spirit stones.

The first stone Mu Yu dug up wasn't the wood-type stone she remembered, but a top-grade lightning-type spirit stone. As for the other top-grade wood-type spirit stone, she had only dug it up recently.

Currently, the Gold-Eating Insect swarm has already roughly searched the rich mineral area of ​​this giant spirit stone mine.

Mu Yu wasn't sure if any top-grade spirit stones had been missed.

The Gold-Eating Insect Swarm is, after all, just an insect; it's already their limit if they can mine according to Mu Yu's requirements.

Mu Yu is already quite satisfied with the results so far.