Currently, the only people who know the secret of the Energy Secret Technique are likely the high-ranking members of the White Feather Gang. And now, apart from Isaac, all the others have been dealt with by the Defense Corps, meaning Isaac is the only one left who knows the secret.

If Isaac still harbors the ambition to rebuild his forces, he will certainly guard the secret tightly. But there's no guarantee that his ambition will continue, and he might use it to exchange for resources and benefits.

If that happens, his situation will become perilous.

After all, he now holds a great treasure, and in the Mist Mountain Region, he's not invincible. Should he divulge this secret to a force like the Smiling Skull, and if they believe him, he could face a catastrophic disaster.

To resolve this issue, the only option is to eliminate Isaac before he leaks the secret.

But right now, eliminating Isaac is not an easy task.

Isaac is hiding in the Wraith Mountain Range, where the power of the Smiling Skull leaves all the cities in the Mist Mountain Region helpless—only Domain City can slightly suppress it. His current strength is merely equivalent to the level of a Deputy City Lord, and entering the Wraith Mountain Range alone to assassinate Isaac.

Not to mention whether he could succeed in killing Isaac in front of the Smiling Skull, he doesn't even know where exactly the Smiling Skull is located in the Wraith Mountain Range.

It's important to know that the planet he lives on now is completely different after the great catastrophe. The entire planet is now several times larger than before, and not even the Martial Artist Association knows exactly how big it is. The area where Mobile Cities can operate is limited to just a few, while other places are inaccessible.

The Mist Mountain Region, as recorded by the Martial Artist Association, covers millions of square kilometers with dozens of cities. The Wraith Mountain Range, according to the association's map data, is about one-third the size of the entire Mist Mountain Region, and serves as a monster's nest.

Trying to find the stronghold of the Smiling Skull in such a place is like searching for a needle in a haystack, and this is one of the reasons why Domain City has always been at a loss with the Smiling Skull.

After pondering for a while, Lin Qi shook his head and temporarily put aside the idea of killing Isaac.

Killing Isaac is inevitable, but for now, neither he nor the Black Obsidian Martial Arts Hall has the strength or conditions to do so. Instead of worrying about Isaac leaking the secret, it's better to focus on enhancing his own strength and that of the Martial Arts Hall.

"Looks like I must put the establishment of the sub-branches on the agenda." Lin Qi opened the system rewards for two Martial Arts Hall sub-branches. These two sub-branches can immediately transform a stadium-sized house into an existing Advanced Martial Arts Hall.

An Advanced Martial Arts Hall comes with ten Basic Training Rooms and three Basic Gravity Rooms.

As long as the sub-branch exists, even if the current Black Obsidian Martial Arts Hall is gone, it won't affect him much. He can still attract players to this world.

For safety considerations, the location of this sub-branch should be as secret as possible—ideally like the Smiling Skull, where only the Smiling Skull members know where the base is, and no one else does.

Once Isaac exposes the Energy Secret Technique, he can hide in the sub-branch, slowly developing and waiting until he's invincible in the Mist Mountain Region before emerging.

Then Lin Qi walked into the space within the rock wall, using his Spiritual Domain to probe for any valuable items left by the White Feather Gang. As for the results of the players' exploration, he didn't hold much hope.

Once those players realize that dying can enhance Spiritual Strength, they'll likely never report their findings to him, opting instead to die as many times as they can.

Now that he understands the situation in the space, the only danger is that segment of the arm. Since Fang Zhen and others have explored the place thoroughly with no issues, he naturally had no concerns.

"Why is the White Feather Gang still experimenting with these things?" Lin Qi wondered as he perceived the research materials left by the White Feather Gang through various instruments with his Spiritual Perception.

According to the paper-based research data and results on the table, the White Feather Gang can filter out individuals more suited to cultivating the Energy Secret Technique through the experimentation of a large number of Lord Monster remains.

The selected individuals have over a 50% chance of learning part of the First Layer of the Energy Secret Technique, which allows for energy burning, significantly enhancing their potential.

For others learning the Energy Secret Technique, the mortality rate is as high as 99%.

Because of their mastery of this technology, the White Feather Gang saw a significant increase in the number of people who learned the Energy Secret Technique. They no longer had to go through the cumbersome process of imparting the technique and waiting for people to survive. They just needed to screen a wave from the massive number of vagabonds, which prevented the secret from easily leaking while dramatically improving efficiency.

However, this approach really puzzled Lin Qi.

The silver-black Inheritance Metal Plate clearly states that the Spirit Secret Technique and the Body Strengthening Secret Technique are both excellent auxiliary cultivation methods. Anyone who learns these two techniques has a high probability of mastering the complete Energy Secret Technique. As for learning pure energy burning, it's practically a breeze.

Moreover, learning the Spirit Secret Technique and the Body Strengthening Secret Technique allows for more precise control over energy burning. It's hard to imagine what purpose the White Feather Gang's research serves.

If they truly wanted people to learn energy-burning methods, they would only need to have them learn the Spirit Secret Technique and Body Strengthening Secret Technique. Despite the slight difficulty in learning these two techniques, they are far safer than learning the Energy Secret Technique. With a Type One Healing Potion, even Martial Artists below the level could be revived. You could say that with enough Type One Healing Potion, practically anyone below the level of a Martial Artist could learn both the Spirit Secret Technique and Body Strengthening Secret Technique.

If you find any errors ( broken links, non-standard content, etc.. ), Please let us know < report chapter > so we can fix it as soon as possible.