Han Feng sat down cross-legged again, meditated for a while, and then immersed himself in his body, and once again ran the Yao Sun Heavenly Technique, forcibly driving the Heavenly Dao Golden Pill, and the power of the formation in the secret room immediately acted on his body.

Suddenly, it was like a thousand mountains approaching, and it was extremely heavy!

Han Feng's waist was slightly bent, his whole body trembled, his hands were shaking as if swinging, he gritted his teeth, not only did not give up, but instead began to run the Alchemy Vajra Technique, frantically absorbing the residual energy of the Dragon Breath Crystal in his body, transforming it into special spiritual power, impacting the bottleneck inside his body.

Han Feng looked inwardly and found that the bottleneck in the middle stage of the Dragon Descending was like a mountain in his body, blocking his impact.

The special spiritual power converged together, like a rushing stream, and continued to attack this mountain range, crackling, but unfortunately this mountain range did not move, only a little sand and gravel were falling, I don't know what year and month it would take to successfully defeat this mountain range.

Han Feng persevered, endured severe pain, and gathered energy one after another to rush towards the mountain-like bottleneck, as if he didn't know how time passed.

Time passed little by little, and before I knew it, half a day had passed.

Han Feng didn't stop, he was still insisting, and the energy rushed like a drill on the bottleneck mountain, and a small hole finally appeared at this moment, but unfortunately it couldn't get through.

Strangely, the hole is healing and gradually recovering.

Han Feng snorted slightly in his nostrils, and immediately mobilized all the special spiritual power to rush towards this cave, launching the most intensive attack, allowing it to slowly expand and deepen, with the purpose of penetrating through the front and back, carving a passage.

The deeper he went, the greater the resistance, and the incomparably strong force burst out from the mountain passage, blocking Han Feng's excavation.

At this moment, Han Feng seemed to have entered a state of selflessness, motionless, completely forgetting the pain, and devoting himself to the task of mobilizing energy to impact the bottleneck mountain.

Time flies, and another half a day has passed.

The hole on the bottleneck mountain range expanded to the size of ten zhang, and the passage inside it also penetrated hundreds of zhang, but there was still no end in sight, and there seemed to be no end.

Han Feng did not give up, and continued to attack the bottleneck mountain range unremittingly, hating that he could not invest all his strength.

However, at this time, the energy of the remaining Dragon's Breath Crystal in his body was completely depleted, and there was nothing left but to grab his own energy.

But his mana is imprisoned at the moment and cannot be extracted, so he can only absorb the spiritual power hidden in his flesh and blood, bubbling out, and before a stick of incense is done, his skin begins to wrinkle, like old skin, which is extremely ugly.

The hunger pang rose without warning, like ten thousand ants biting, unbearable, Han Feng woke up from his state of selflessness.

Seeing this situation, he immediately took out a large handful of pills from the storage ring and took them, making his hunger a little less and much more comfortable.

Even in this case, he did not stop breaking through the bottleneck, because he knew that if he gave up halfway, the hole in the bottleneck mountain would heal on its own, and it would become stronger, and it would be extremely difficult to dig it in the future.

He put aside his thoughts and concentrated all his strength to fight to the death!

Anyway, now that he is trapped here, if he doesn't have stronger strength, he won't be able to successfully break out of the predicament.

While swallowing a large amount of pills, Han Feng adjusted the various energies in the group to wash the cave like a stream of water, running through the front and back passages.

This is taking his life to impact the bottleneck, and he has no way back, once he fails, his body is bound to decay due to lack of spiritual power, and even his Heavenly Dao Jin Dan will become dim and completely shrink!

Han Feng had no joy or sorrow on his face, most of his energy was devoted to this breakthrough of life and death, only occasionally releasing his soul power to float on the storage ring, reaching out and taking out handfuls of pills, swallowing them all into his stomach as if eating jelly beans, and under the operation of the Alchemy Vajra Technique, all of them turned into rolling spiritual power to provide power for his breakthrough.

It's a pity that as he took more and more pills, the effect of the pills became worse and worse, and in order for him to obtain the same spiritual power, he needed more pills to consume, so he fell into a vicious circle, causing the pills in his storage ring to replenish his vitality to decrease sharply.

Han Feng was secretly anxious, but there was nothing he could do, he was thinking about whether to stop this breakthrough, even if the backlash suffered was great, it was better than losing his life, but he was really unwilling and still continued to insist.

Soon, two more hours passed, and the elixir he used to replenish his vitality was completely consumed, and there was not half a pill left!

Han Feng was in a complicated mood, thinking a lot, and didn't know how to choose, but the breakthrough in his body had not stopped, and he was still running the Alchemy Vajra Technique at a high speed, and there was a tendency that he couldn't stop.

Strands of suction were derived on their own, sweeping across his body, absorbing the spiritual power in his flesh and blood, and his blood and qi began to decrease, and there was a great tendency to wither.

Han Feng was shocked, and as soon as his thoughts moved, he was about to cast a spell to forcibly stop refining the spirit vajra, but at this moment, wisps of warm currents emerged from the depths of his body, colorless, lightless, and pervasive, repairing his flesh and blood at a speed visible to the naked eye, making his blood and qi vigorous again.

This wisp of warm current was the innate qi, and when he was about to run out of water, it finally appeared in his body and helped him relieve his strength.

Han Feng's confidence increased greatly, and at the same time, he suddenly stood up, posed as the first picture of the Ten Diagrams Secret Classic, and took it seriously, and the innate qi in his body suddenly boiled, making his body's spiritual power more vigorous, constantly converging into a stream, endlessly impacting the bottleneck mountain range, without stopping.

When he insisted on seven seven and forty-nine breaths, the innate qi inside his body was like a spring, and there was a faint humming sound, like ten thousand horses galloping, rumbling.

The injuries in his body were bathed in innate qi, and they disappeared in an instant, and bursts of red light appeared on the whole person from the inside out, and his appearance was red, as if he was in blood and fire.

At the same time, the mysterious aura in the secret room suddenly shook, and one by one the extremely slender runes swarmed, continuously merging into his body.

In an instant, the inside of Han Feng's body seemed to explode, as if a powder keg had been ignited, and there was a violent bang, and the extremely violent energy fluctuations were vented.

He spat out a mouthful of blood for the first time, his body shook, and the first picture posture of the Ten Diagram Secret Archive almost failed to maintain, but fortunately, he had the Alchemy Vajra Technique in his body, and at the same time, he was guarded by a large amount of innate qi, and the injury was rapidly recovering, and the force of the explosion was smoothly guided by him to rush towards the bottleneck mountain, but it did not lead to the cave, it hit the side, and with a loud bang, it exploded directly into a deep pit.