Adamantine Finger!

Before the familiar waterfall, Lin Feng spread his wings and hovered in midair. Gazing down at the ceaseless rushing torrent, his state of mind, stirred to a boil by the fierce battle, calmed somewhat.

Whoosh...

Without lingering, Lin Feng flashed into the cave beside the waterfall.

Thud...

A huge wooden tub landed on the ground. Lin Feng took out a large jade bottle from his Storage Ring, filled with Body Tempering Fluid refined from a formula obtained at the Alchemist Guild.

Body Tempering Fluid: A fourth-grade medicinal liquid that strengthened the bones and physique. Note: Since its main ingredient was a Demonic Core with violent energy, absorbing it would cause immense pain. Those of weak disposition were not advised to consume it.

Recalling the moment he had first seen this formula, the corners of Lin Feng's lips curled into a faint smile. This truly was a formula made for him.

For Lin Feng, who had trained his body in the desert since childhood, pain had accompanied him through most of his life. That was also why his physical strength had always been comparable to that of Magical Beasts of the same rank.

To obtain what others did not have, one had to endure terrifying hardship.

With a wave of his hand, a small stream split off from the raging waterfall outside and slowly flowed into the wooden tub.

After pouring all the Body Tempering Fluid into the tub, Lin Feng paused slightly, then took another jade bottle containing Monkey Wine from his Storage Ring.

"Good steel should be used on the blade's edge. I'm already a Five-star Dou Spirit, and I've planned out every advancement until Dou Wang. So why not..." Lin Feng rubbed his chin. "Use this Monkey Wine for body tempering? It might bring some unexpected results."

After pouring a measured amount of Monkey Wine into the tub, Lin Feng stripped off his clothes in a few quick motions, revealing a powerful physique. As if sensing someone peeping at him, he swiftly slipped into the wooden tub.

"Phew... Let's begin. Hopefully, this can greatly aid my body cultivation."

Lin Feng slowly closed his eyes and sat cross-legged in the wooden tub, his entire body submerged in the Body Tempering Fluid as he entered a state of internal circulation.

With every breath drawn through his skin, the energy within the tub gradually flowed into Lin Feng's body. Perhaps he would only awaken once all the energy in the tub had been absorbed.

Hmph...

As time passed, a numb, tingling sensation gradually spread from Lin Feng's bones. Before he could react, that sensation transformed into earth-shattering agony. Even Lin Feng's unyielding will, tempered through years in the desert, could not stop a muffled groan from escaping him.

He immediately clenched his teeth. This was precisely when he could not give up. Moreover, for something to inflict such immense pain upon his current self, as though blades were scraping his bone marrow, it was painful enough to make one faint.

Cold sweat continuously seeped from Lin Feng's forehead, only to quickly mix with the medicinal liquid in the tub. If not for his tightly furrowed brows, one would not have been able to see the pain on his face.

After an unknown period of time, Lin Feng's tightly furrowed brows gradually relaxed. The medicinal liquid in the tub began to spin rapidly, while Lin Feng's aura rose step by step. Yet this time, the Dou Qi surging around him showed not the slightest hint of instability.

As night gradually fell, the medicinal liquid in the tub slowly returned to its original clarity, while Lin Feng's long-dormant aura began to fluctuate faintly.

Thump...

Powerful heartbeats rang out from the body with its eyes tightly shut, spreading slowly in every direction before gradually fading upon striking a layer of colorless light.

Lin Feng's tightly shut eyes suddenly opened, like two dazzling stars, shooting out divine light nearly an inch long.

Phew...

After exhaling a breath of turbid air, Lin Feng clenched his fist and felt the long-awaited rapid improvement in his body.

"My body is already nearly comparable to a Mid-tier Rank 4 Magical Beast? Perhaps after a few more medicinal baths, it can fully reach the physical strength of a Mid-tier Rank 4 Magical Beast."

After a brief pause, Lin Feng sank his mind into his Dantian and looked at the sea urchin-like Dou Qi crystal. It was now completely stable, without the slightest trace of instability.

"My Dou Qi is stable enough to consume a Five Elements Pill and advance once more. Fine, I should fight a few more battles first!"

After sighing, Lin Feng did not immediately consume a Five Elements Pill to advance. On one hand, he had not broken through to Five-star Dou Spirit long ago and wanted to experience the changes in each realm more thoroughly, improving his control over Dou Qi. On the other hand, he feared damaging his foundation in ways he could not perceive.

After thinking for a while, Lin Feng looked at the darkness that had completely descended outside the cave, but he did not act as cautiously as before.

"With the strength of a Five-star Dou Spirit, a physique comparable to a Mid-tier Rank 4 Magical Beast, and a Flying Dou Technique as my foundation, I need not be overly cautious as long as I don't act too arrogantly and cause trouble in the core region."

The growth in his strength had also brought subtle changes to Lin Feng's state of mind. Furthermore, Qing Lin's forced departure had spurred him on, making him want to grow stronger with every second.

"After all, even Xiao Yi Xian has entered Secluded Cultivation!"

He recalled how, in the Imperial Capital, Xiao Yi Xian had begged him to use the Five Elements Sealing Technique to ensure that the Calamity Poison Body would not suffer any mishap. She had then taken poison and concocted a large quantity of toxic substances according to the methods described in the Seven-Colored Poison Scripture, entering a long period of Secluded Cultivation.

"Perhaps Qing Lin, her friend all these years, leaving had greatly affected her!"

But was Lin Feng any different? Moreover, he had always been the pillar supporting the two of them. One could imagine how stifled he felt. Thus, after refining all the medicinal pills needed for his training, he immediately boarded the Xuanwu and headed for the Magical Beast Mountain Range to find suitable Magical Beasts for battle.

Thoughts flashed endlessly through his mind, but his hands did not stop moving. With a wave of his hand, Dou Qi dried his body, and he quickly put on his clothes.

After checking the medicinal pills in his Storage Ring once more, Lin Feng wrapped himself in Soul Force, channeled Dou Qi into his legs, and flashed toward the depths of the Magical Beast Mountain Range.

Only an afterimage remained behind. When a breeze swept past, the cave was already empty.

Before the Pitch-Black Grand Canyon, Lin Feng slowly came to a stop. Feeling the light barrier still operating steadily, he nodded in satisfaction.

Then he flashed inside, spread out his Soul Force, and followed the original route toward the Dark Demonic Ape.

Boom...

Sensing Lin Feng's arrival, the ape was far from polite. It lifted a Giant Stone and viciously hurled it at him.

"Hehe, you're quite energetic. But that's exactly what I need."

Seeing the Giant Stone flying toward him, Lin Feng stood frozen in place as though frightened senseless, a faint smile still resting on his lips, sending chills down one's spine.

Just as the Giant Stone was about to crush him into a pile of mangled flesh, Lin Feng finally moved. Dou Qi surged out wildly, forming Five-Colored Armor that tightly wrapped around him. Raising both hands, he forcefully caught the Giant Stone bearing tremendous pressure.

After carving a trail nearly a hundred meters long across the ground, Lin Feng braced himself and finally dispersed the enormous force.

"It would be rude not to return the favor!"

His hands, covered in Dou Qi Armor, plunged fiercely into the Giant Stone. After spinning several times on the spot and borrowing that immense momentum, he violently flung it toward the Dark Demonic Ape.

Roar...

Upon seeing its enemy, the Dark Demonic Ape ignored its recently healed injuries. It fiercely beat its chest and let out an enraged roar from its savage maw toward Lin Feng.

An astonishing change immediately came over its body. Its already enormous frame began to expand rapidly, reaching a height of thirty meters in the blink of an eye.

Its entire body radiated a violent aura, as though it intended to destroy everything around it. Moreover, if Lin Feng used his Soul Force to examine it, he would discover that its eyes had turned blood-red, its huge eyeballs covered in bloodshot veins.

Once the transformation was complete, the aura of the enlarged Dark Demonic Ape seemed to have crossed a distinct threshold, reaching the level of Rank 5.

Seeing this, Lin Feng's expression gradually turned grave. "I never expected this Dark Demonic Ape to possess Berserk Transformation. Could it have the bloodline of some High-tier Magical Beast?"

But the Dark Demonic Ape gave Lin Feng no time to think. With a roar toward the heavens, its incomparably massive body charged violently at him, determined to smash this little ant to pieces.

Adamantine Finger!