The Big Mouth opened its big mouth and swallowed the Yellow Spirit slice whole.

Under the spirit medicine feed provided by Gu Yuan at no cost, the three little ones have grown rapidly these past few days.

Take the Iron-toothed Rat as an example.

It has now reached 68% of the Growth Stage.

At this rate, in just over half a month, it can become a mature Iron-toothed Rat.

By then, Dao Rhyme Points can be consumed to evolve into a little Treasure Hunting Mouse.

The Big Mouth is slightly slower, reaching (59%).

As for Ah Wu, who grows the slowest, there are also noticeable changes in appearance.

Its size has grown, and the color of its carapace has become increasingly deep and heavy, with two rows of sharp, iron hook-like limbs beneath its body.

...

It was noon that day.

Jade Cauldron Tower.

A swordman carrying a long blade, wrapped in an old robe, walked into the hall.

The swordman had a sallow complexion, a tall yet thin frame, an indifferent expression, and a face that discouraged strangers from approaching.

When he approached the counter, the clerk immediately came over, smiling and greeting, "What can I get for you, sir?"

Having worked at the counter for a long time, who hasn't he seen?

He naturally wasn't neglectful, but wasn't so frightened that he couldn't speak.

"Do you have Blood Jade Bone-strengthening Pills?"

The sallow-faced middle-aged man spoke, his voice somewhat muffled and deep.

The Blood Jade Bone-strengthening Pill is one of the signature items of Jade Cauldron Tower.

This pill is as famous as the Leopard Embryo Marrow Cleansing Pill and the Tiger Bone Marrow Nourishing Pill, but it's even more expensive.

A full twelve hundred silver per pill!

The reason for this is that the Blood Jade Bone-strengthening Pill is a spirit pill that tempers bones and strengthens sinews and bones.

The main ingredient is Jade Marrow extracted from a certain type of Spirit Jade, blended with a dozen kinds of spirit medicines and essence blood of birds and beasts, and is finally refined.

As for the effects, they're quite formidable, and it can be said to be worth the price.

At least many people have been refining bones for three or five years and may not come close to the effect of this single elixir.

For Martial Masters, its only and biggest flaw perhaps is its costliness.

The average person might go bankrupt and still not afford one.

"Yes, of course, we do!"

The clerk smiled at the corners of his mouth and eagerly took out a Jade Bottle: "Rest assured, sir, the Blood Jade Bone-strengthening Pills in our shop are top-quality and highly effective. Please look, you can determine from its color and smell that it's definitely upper grade."

"If you buy it, sir, I can give you a five silver discount!"

The shop clerk smiled broadly, quite enthusiastic.

This kind of spirit pill is rarely bought on regular days.

Mainly because it's too expensive.

Even big households would feel the pain of buying one.

But if he could really sell one, he would get a commission.

The sallow-faced swordman shook his head, "Too few!"

"Ah?"

The clerk was stunned, "Sir, do you mean..."

"One Blood Jade Bone-strengthening Pill is not enough, I want three!"

The sallow-faced swordman said in a deep voice.

As he spoke, he took out a thick stack of silver notes and placed them on the counter.

"Th...three?"

The clerk was completely stunned.

Heaven have mercy; he had been working as a clerk at Jade Cauldron Tower for five or six years, and customers always bought spirit pills one at a time.

Often buying with a pained expression.

Where had he seen someone like this sallow-faced swordman, buying three at a time?

This was way too extravagant...

"What? Don't you have them?"

The sallow-faced swordman frowned.

"Yes! Of course, we have them!"

The clerk snapped back to his senses, hastily nodding in agreement.

Then he took out a key, carefully unlocked the cabinet behind him, and took out two more elixirs:

"Sir, please see, these two Blood Jade Bone-strengthening Pills are also of good quality."

"Very good!"

After a simple check to ensure the elixirs were intact, the sallow-faced swordman nodded, casually pocketing the three spirit pills and turning to leave.

"Sir, please wait, your money..."

Seeing this, the clerk tried to call him back, but the sallow-faced swordman had already walked out the door.

He quickly counted the silver notes left by the other party, ensuring the money was correct, he finally sighed in relief.

...

The sallow-faced swordman left Jade Cauldron Tower, turning left and right on the street to ensure no one was following him, then flipped over into a courtyard.

Then a series of crackling sounds came from within his body, making his entire body visibly shrink by a circle, and he wiped his face.

Revealing a handsome and youthful face.

This person was Gu Yuan!

The "Golden Snake Swallowing Essence Technique" had been practiced to a certain point, allowing for the stretching of tendons and shrinking of bones, perfect for changing identities and doing some unsavory things.

"Three thousand and six hundred silver just for these three elixirs, I hope they prove to be worth more than their cost and meet my expectations..."

Looking at the three Jade Bottles in hand, Gu Yuan's mouth twitched slightly. Even though this money was an unexpected windfall, spending most of it at once still made him feel pained.

However, though the Blood Jade Bone-strengthening Pills were expensive, their effects were indeed potent, and if used well, these three elixirs might propel him to Great Success in Bone Refining.

Gu Yuan opened one Jade Bottle and poured out the elixir inside.

This Blood Jade Bone-strengthening Pill was about the size of a longan, heavy like an iron ball, but its surface emitted a blood-red jade-like glow, feeling slight warmth in the hand.

Gu Yuan opened his mouth and swallowed it.

Gulp!

The Blood Jade Bone-strengthening Pill slid down the esophagus into his stomach.

Gu Yuan only felt a heaviness in his stomach, followed by a scorching heat radiating from within.

His stomach seemed like a furnace, beginning to burn with roaring fire, igniting all his blood and flesh, instantly turning his skin red and burning hot!

"This drug is too strong, even stronger than swallowing the spirit medicine Yellow Spirit whole!"

Gu Yuan felt hot and heated all over, becoming extremely excited!

Especially the bones, which ached and itched!

Gu Yuan moved slightly, and there was a slight "creak creak" sound, as if an old, rusty machine inevitably began to make strange noises.

He quickly assumed the posture according to the techniques in the "Golden Snake Swallowing Yuan Technique" in the courtyard and began to strike with fists, accelerating the absorption and digestion of the drug!

Once the fist technique was applied, the unusually excited energy in his body seemed to find an outlet, giving him a sensation of floating, even the aching and itching bones emitted waves of comfort.

More so, a "swoosh" sound emanated from within him, the intense friction of his sinews and bones.

As though files and hammers kept grinding and refining on his bones, removing and cleansing all the impurities within his bones!

It felt much like iron ore being gradually refined, with impurities gone, leaving only the essence!

It wasn't until evening, as the sun set, that Gu Yuan finally stopped, feeling that the heat inside had settled quite a bit.

At this time, his entire body was steaming, with some grayish sweat seeping from his skin, feeling somewhat sticky, and emitting a rancid odor.

These were obviously the impurities in his body, and the dirt accumulated after metabolism, all expelled.

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