To comprehend all laws and attain immortality

Outside the Qing Shi Palace, Gu Fan squatted down and stared into the eyes of a two-foot-tall rabbit-like monster.

The white rabbit spirit beast is called the Lingzhi Rabbit. It is a common first-tier spirit beast that reproduces very quickly. It has a natural fondness for eating Lingzhi mushrooms, which makes its meat tender and rich in spiritual energy, making it a favorite food of high-tier spirit beasts.

Gu Fan chose the Zhizhi Rabbit as the experimental specimen for two reasons: firstly, its bloodline quality was equivalent to that of the Wind Breath Rat, and secondly, it was inexpensive.

After the spirit was successfully forged, the appearance of the rabbit carrying the sesame seed changed drastically.

Its white fur turned silver, its pupils changed from red to purple, its body grew two feet taller, and its strength doubled, not to mention its speed also increased significantly.

"Wow, you actually succeeded!"

Chang Yuan's voice rose in his mind, filled with emotion and a hint of amazement.

After manipulating the Jade-Holding Rabbit to hop around a few times on the ground, he continued, "Now, this rabbit's bloodline is enough to elevate it to the second tier!"

After saying this, Chang Yuan's soul turned into black smoke and left, causing the rabbit holding the sesame seed to immediately slump to the side.

Gu Fan made a hand seal and chanted an incantation. He then placed a finger on the forehead of the rabbit holding the sesame seed, planting a spirit-controlling talisman.

Spirit control talismans are a common method used in the cultivation world to contract with spirit beasts. By simply imprinting a mark on the spirit beast's soul, the spirit beast's life and death are entirely in the cultivator's hands.

The rabbit carrying the sesame seed had already had its soul sealed by Chang Yuan, so it succeeded in casting the spell without any hindrance.

The next instant, a new sensation appeared in his mind. Gu Fan's divine sense stirred slightly, and he awakened the Rabbit Holding the Ganoderma.

After waking up, the leopard rabbit no longer tried to escape. Instead, it approached Gu Fan as if pleading and rubbed against the back of his hand.

Gu Fan smiled slightly and ordered, "Let me see your innate magical talent!"

Upon hearing this, the rabbit carrying the sesame seed kicked off with its legs and instantly transformed into a streak of silver light, speeding away outside the Green Stone Palace, leaving behind a series of afterimages.

A moment later, the rabbit with the sesame seed stopped in front of a wild grass, let out a soft hiss, and green light shimmered beneath its feet.

The emerald light fell on the wild grass, causing it to grow three feet at a visible speed.

Looking at this scene, Gu Fan smiled with satisfaction.

He used the essence blood of the second-tier demon beast Moon Shadow Fox to modify the Seal Rabbit. Both belong to the wood element, but the Moon Shadow Fox also has a portion of the yin attribute.

In addition, he also used wood-attribute spiritual materials such as Night-Shining Flower and Firefly Grass to enhance the wood-attribute effect.

As a result, the Jade-carrying Rabbit not only inherited the Moon Shadow Fox's speed talent, but also possessed the talent to promote the growth of plants. If used to tend a medicinal garden, it would certainly be an excellent gardener.

Of course, the ability of the rabbit that carries the sesame seed to promote the growth of plants is also limited. What it promoted just now was only ordinary wild grass. Its effect on the medicinal herbs needs to be observed.

The gray mouse perched on Gu Fan's shoulder, its round eyes wide open.

It watched as the rabbit carrying the sesame seeds entered the Returning to Origin Furnace.

Previously, the aura of the Jade-Holding Rabbit was not as strong as its own, but after being forged into a spirit, its aura surged, and it was not far from being a second-tier demon beast. This made the gray rat instinctively feel a sense of fear, and it couldn't help but move closer to Gu Fan's cheek and rub against him.

Gu Fan patted the gray rat's head and laughed, "Don't worry, it'll be your turn soon."

......

Several days later.

Gu Fan sat cross-legged on a futon, toying with the walnut-sized Guiyuan Furnace in his fingers, his brows furrowed as he stared at the two jade boxes in front of him.

The jade box was obtained from the underground palace of the Luofu Secret Realm, and it has been identified after extensive verification.

In the first jade box, there is a fiery red horn shaped like a deer antler, called the Fire Scale Horn. It comes from a fire-attribute spirit beast that has become extinct and is the main ingredient for refining the third-tier pill, the Burning Vein Pill.

The Burning Meridian Pill is a rare body-refining pill. After taking it, one will suffer the pain of being burned by raging flames, while at the same time, the meridians and flesh will be tempered to become more resilient.

Unfortunately, the auxiliary materials for refining the Burning Vein Pill are extremely rare, and Gu Fan cannot gather them all in a short time.

In the second healing process, the pulsating emerald heart is called the Exquisite Wood Heart. It contains immense vitality and can quickly heal injuries, far surpassing ordinary healing pills.

Gu Fan found a record of the Exquisite Wood Heart in an ancient book. Its greatest function was not healing, but rather using it as a core vessel to refine an external avatar.

However, only Nascent Soul cultivators can refine their external avatars.

Looking at the two jade boxes in front of him, Gu Fan pondered:

"These two spiritual materials are rare, but they can't be used in the short term."

"The auxiliary materials for the Burning Vein Pill are difficult to gather. Unless you can sell them to the Hundred Refinements Sect, they're not very useful."

"If I were to hand over the Exquisite Wood Heart to the sect, I could earn a massive amount of merit points. However, I don't lack merit points right now, and besides, within the Lingxiao Sect, only the Supreme Elder, Guiyun Sword Lord, can truly utilize this item."

"A Foundation Establishment cultivator has no right to make deals with a Nascent Soul cultivator!"

Thinking of this, Gu Fan's eyes slowly hardened. He cradled the gray squirrel on his shoulder in his palm and said earnestly, "I've invested so much, you'd better work hard!"

"Squeak?" The gray mouse tilted its head in confusion.

Chang Yuan flew out from his left arm and exclaimed in surprise, "Are you really going to use these two spiritual materials to forge a spirit in this rat? What a waste! Why not save them for when you reforge my physical body? At worst, I'll teach you two secret techniques, how about that?"

Gu Fan snorted and turned his head away upon hearing this.

Even if the gray rat is weak, it is still his own spirit beast. Although Chang Yuan has signed the Heart-to-Heart Spell, he must be harboring evil intentions. Gu Fan would rather invest resources in the gray rat than let Chang Yuan benefit from it.

As for the secret technique given by Chang Yuan... who knows if there are any serious side effects.

The Myriad Manifestations Eye allows him to quickly comprehend cultivation techniques and secret arts, but it cannot avoid the inherent characteristics of those techniques!

Seeing that Gu Fan ignored him, Chang Yuan couldn't help but mutter a few words.

Gu Fan, however, was already pondering how to forge a spirit for the gray rat.

Actually, he had another option, which was to choose a second-tier spirit beast to forge a spirit, but after thinking about it for a while, he gave up.

The three spiritual materials used for spirit forging are: Fire Scale Horn, Exquisite Wood Heart, and Changyuan's Blood. Each of them is above the second rank, especially the latter two. Rather than modifying a second-rank spirit beast that is not familiar, it is better to cultivate a gray rat that knows the inside and out.

Moreover, gray rats have another advantage—their bloodline quality is too low.

That's right. Because the quality of the forging materials is too high, the low quality of the bloodline becomes an advantage, and the original bloodline effect has little impact on the characteristics of the materials.

The price was that the gray rat, after being forged into a spirit, could no longer be called a Wind Breath Rat. In terms of bloodline, Chang Yuan was closer to it than its rat parents.

In his sea of ​​consciousness, countless thoughts flashed by like shooting stars as Gu Fan tried his best to capture inspiration.

Time passed by, and Gu Fan sat there for a full half-day.

As the gray rat listlessly nibbled on a spirit beast pill, Gu Fan slapped his thigh and exclaimed, "I've got it!"

The gray rat was startled and before it could react, Gu Fan grabbed it and hurriedly left, heading straight for the Service Hall.

......

Three days later, inside the Green Stone Palace.

Gu Fan placed the Guiyuan Furnace in the quiet room and slowly poured spiritual spring water into it.

A gray mouse stood on his shoulder, its eyes full of determination, occasionally glancing back at the sesame-carrying rabbit standing at the foot of the wall, chewing a spiritual herb in its mouth.

"Alright, go down now!" Gu Fan instructed.

The gray squirrel squeaked twice, its two black bean-like eyes darted around a few times, and with a kick of its two short legs, it flew in an arc and fell into the Returning Origin Furnace with a plop.

Gu Fan flicked his finger, and the Six Ding Divine Fire ignited.

A moment later, the gray rat, sensing the rising temperature of the spiritual spring, cried out uneasily.

"Don't worry, nothing will happen!" Gu Fan said softly, then took out the jade bottle containing Chang Yuan's essence blood.

Chang Yuan suddenly appeared, transforming into black mist and swirling around Gu Fan, shouting, "Junior, you actually dared to do that! My essence blood was prepared to reshape my physical body!"

"I know, I know!" Gu Fan replied nonchalantly, "I'll rebuild your physical body sooner or later. It's just a little bit of essence blood, not the whole thing."

After speaking, Gu Fan separated a drop of blood essence the size of an infant's fist and put it into the Returning Origin Furnace.

The gray rat immediately froze, unable to move, upon sensing the aura of Chang Yuan's essence blood.

Gu Fan sighed with regret.

Chang Yuan's position was too high, and the disciples of the Gray Rat were too weak. It was impossible for them to withstand the whole drop of essence blood at once, even if this so-called "essence blood" was just some residue left over from the Qian Yuan Soul-Slaying Formation.

Fortunately, there is no limit to the number of times spirit forging can be done. As long as the gray rat is still alive, Gu Fan can continue to forge and modify spirits.

As they spoke, the spiritual spring turned a pale red and began to slowly rotate along the walls of the Returning Origin Furnace.

With a thought, Gu Fan activated the Creation Spirit Forging Array on the Returning Origin Furnace, and the furnace lid slammed down, silencing the gray rat's screams.

Half a day later, when the color of the spiritual spring had faded slightly, Gu Fan took out the exquisite wood core and threw it in completely.

In an instant, the entire quiet room was filled with a refreshing woody scent.

Gu Fan quickly patted the Guiyuan Furnace, firmly binding the spiritual energy of the Linglong Wood Heart within it.

The Six Ding Divine Fire suddenly surged.