Lu Chen didn't waste time. He sealed the entrance of the cave with True Qi and then sat down cross-legged.
He glanced at the ferocious knife wound on his left shoulder. At this moment, the edge of the wound had begun to turn black. It was obvious that the Blood Leopard knife had some kind of toxin or special Sha Qi attached to it.
Lu Chen's eyes flashed coldly, and he did not take out the antidote pill, but opened the system directly.
[System, help me analyze the toxin.]
[Confirmed to be Stone Gall Ghost Baleful Qi. Does it take ten years to detoxify Demon Devil Lifespan.]
[Confirm!]
As the command was issued, a strange aura as dark as ink surged out from Lu Chen Dantian, instantly wrapping around the wound on his shoulder.
The corrosive toxin was quickly devoured and disintegrated the moment it came into contact with Demon Devil Lifespan.
Immediately afterwards, there was a powerful surge of vitality. Visibly to the naked eye, the flesh and blood at the wound began to squirm and proliferate. In just a few breaths, the knife wound that was originally deep into the bone healed quickly, leaving only a faint pink trace, as if it had never been injured.
[Complete cleaning, remaining Demon Devil Lifespan 540 years.]
Su Qingxue watched with horror.
She had never seen such a strange and powerful healing method. The dark breath smelled of death and decay, but it also contained majestic vitality, which simply subverted her cognition.
Her awe for Lu Chen deepened again.
Lu Chen ignored Su Qingxue's shock and focused entirely on Earth Vein Spirit Marrow.
He stretched out his hand and held the milky white crystal in his palm. As soon as the crystal came into contact, a cold and energetic breath flowed along his palm and quickly poured into his meridians.
He took a deep breath and ran <Ten Thousand Year Black Tortoise Art>.
While Cultivation Method was running, the pure earth essence contained in Earth Vein Spirit Marrow was like a flood that burst its banks, roaring towards Dantian along his meridians.
The essence washed every inch of the meridians in his body, broadening the original constraints, allowing True Qi to flow faster and have a greater capacity.
Among Dantian, True Qi, which was originally flowing like a river, seems to have been injected with new vitality under the influx of a large amount of earth essence.
Lu Chen can clearly feel that his physical cultivation is rapidly consolidating. Under the impact of spiritual marrow, the realm barrier in the middle Meridian Opening realm has become more and more stable, and has even faintly touched the threshold of the late Meridian Opening realm.
At the same time, the <Black Tortoise Breath Concealment Art> in his body was also operating autonomously, perfectly converging the majestic Spiritual Qi fluctuations within his body without leaking anything.
This kept his aura in a restrained and profound state, and even if there were signs of breakthrough, it never caused the slightest fluctuation to leak out.
About an hour later, the breath around Lu Chen gradually stabilized.
He slowly opened his eyes, and the light in his eyes flashed away, and then became deep and introverted, as if all the light was sucked into his eyes.
His strength, after this refining, has been greatly consolidated and improved. Although there is still a thin line between him and the late stage of Meridian Opening, this short one hour of practice is worth several months of hard training for ordinary warriors.
He put away the remaining Earth Vein Spirit Marrow, and then looked at Su Qingxue aside.
When Su Qingxue saw Lu Chen completing the exercise, he immediately calmed down.
Lu Chen didn't say much, he just took out a small piece of Earth Vein Spirit Marrow from the jade box, which was only about one-tenth the size of what Lu Chen had refined, and handed it to Su Qingxue.
"Refining it." Lu Chen said concisely and to the point.
Su Qingxue took the spiritual marrow, and the pure earth essence made her feel relaxed and happy. She did not dare to neglect at all, and immediately sat down cross-legged and refined it with all her strength.
After the spiritual essence entered the body, Su Qingxue immediately felt its powerful medicinal power.
The True Qi that was originally depleted in her body quickly recovered like dry land encountering sweet rain.
The meridians that were originally stagnant due to the injury became smoother and even subtly broadened under the nourishment of the spiritual marrow.
Her complexion returned to rosy at a speed visible to the naked eye, and her breath became steady and strong.
While she was healing her wounds, she carefully observed Lu Chen.
The value of this piece of Earth Vein Spirit Marrow is enough to make countless warriors go crazy for it.
Lu Chen can give it to her without hesitation, which is undoubtedly recognizing her value and giving her a chance to live.
Another hour passed, and Su Qingxue also slowly opened his eyes.
Although she has not reached the level of solid breakthrough like Lu Chen, most of the injuries in her body have recovered, and True Qi has also recovered to 70% to 80%, and her strength has even improved a little.
The way she looked at Lu Chen, in addition to awe and gratitude, there was also an indescribable complex emotion.
"Thank you, senior, for giving me the spiritual essence!" Su Qingxue bowed respectfully to express his thanks.
Lu Chen just nodded slightly, and then took out the spliced residual picture from Storage Bag.
He flattened the residual image on the ground, looked calmly, and said to the system silently in his mind, "Start Trace Source to analyze the mark and potential information of this image."
[Command confirmation, consume Demon Devil Lifespan 10 years, start deduction...]
An invisible wave spread from his sea of consciousness and merged into his perception of the map.
In an instant, the originally static lines and symbols on the residual image seemed to come alive, taking on a deeper meaning under the power of the system.
The eye-catching red dotted line clearly showed in the deduction that it traveled through several dangerous areas in Hundred Demon Cave, and finally pointed to an area marked by a special symbol.
System feedback showed that the area was enveloped by strong ancient rune fluctuations and highly condensed distortion Yao Qi.
After systematic in-depth analysis, the real scale of that area is far beyond what is shown in the picture - its energy response range is extremely large, and its structure is complex and regular, which is in line with the typical characteristics of giant underground ruins.
What made Lu Chen's heart sink even more was that when deducing a certain key node of the path, the system captured several extremely weak and almost imperceptible hidden marks on the map in addition to the red line.
The energy characteristics emitted by these marks are different, but they all point to the same fact: in addition to him, there are other powerful demons or unknown forces, which seem to be attracted by some kind of force and are converging towards the underground ruins from different directions.