Cosmic Trading System

"Hmph!"

Lin Yun let out a cold huff and charged again with the Bloodthirsty Sword in hand.

Although it was only a momentary exchange, Lin Yun faintly discovered the Ghost Practitioner's weakness, which was that its defenses were not as strong as other Cultivators, nor did it have as many magical treasures and external aids like human Cultivators.

The latter was something Lin Yun had sensed earlier. Now, combining these two factors, the Ghost Practitioner seemed much weaker.

In other words, at best, this Ghost Practitioner was just more difficult to injure. When it came to real strength, it was only at the bottom of the second level of the Super Warriors among external human Cultivators. In fact, some of the more powerful first-level Super Warriors could match its strength.

It merely had the realm of the second level of Super Warriors.

This gave Lin Yun a slight sense of relief.

If so, even if he faced a third-level Super Warrior Ghost Practitioner, he wouldn't have to worry too much.

"Boom~! Boom~! Boom~!"

The two sides exchanged blows rapidly, with Lin Yun's attacks continuously landing on the Ghost Practitioner and its attacks continually hitting Lin Yun.

At this time, Lin Yun also gradually discovered the Ghost Practitioner's advantage.

That was, Lin Yun also had a hard time withstanding its attacks. The Ghost Practitioner had a very special way of attacking, mostly using spiritual attacks, and Lin Yun, with his lower realm, feared spiritual attacks the most.

If not for the power of the Bloodthirsty Sword being extremely effective in both spiritual attacks and defenses, he would probably be at a significant disadvantage.

"Pfft——"

Finally, after one sword strike, Lin Yun completely annihilated the Ghost Practitioner, and the space that was once a forest filled with ghostly energy cleared up significantly.

Lin Yun looked up to see a thick cloud in the sky split open, as a ray of sunlight fell through the gap.

"There's a sky, clouds, sunlight… this Heavenly Principle Tower really is extraordinary…"

Lin Yun remarked with emotion.

This space almost became a cycle unto itself, and this space... was merely one of the easily conjured fifty-level spaces by the Heavenly Principle Tower. It was uncertain how many such fifty-level spaces there were.

Not to mention, with one hundred and eight levels in the Heavenly Principle Tower, and having only reached the fiftieth level, what kind of sights would be on the higher levels? The Heavenly Principle Tower was indeed formidable!

"Continue!"

Very soon, a surge of exhilaration flashed in Lin Yun's eyes.

The fiftieth level.

He hoped to quickly pass through this and reach the higher-level spaces. Now, his performance in exploring the Heavenly Principle Tower was no longer important. He was very curious about what the higher levels of the tower were like.

The spiritual energy here was denser, making it easier to comprehend the power of laws. He had a feeling that with his cultivation here, it would not take ten years for him to break through to the realm of Super Warriors.

What about the even higher levels then?

Would it be possible... to only need one year? Or even less time?

Although he had only a little more than half a year left to explore the Heavenly Principle Tower, as long as he reached the very high levels of the tower space…

It wasn't hopeless for him to break through to the realm of Super Warriors while inside the Heavenly Principle Tower!

At worst, once he gets out and obtains the Heavenly Principle Fruit, he would definitely be able to break through to the realm of Super Warriors!

Thinking this way, a hint of excitement arose in Lin Yun's heart.

With his current strength using the Bloodthirsty Sword, he could fight against the third-level Super Warriors. If he broke through to the realm of Super Warriors, undergoing earth-shattering changes in life's stratum, he was confident even when clashing with the top Super Warriors of the fourth level.

"Unfortunately, these Ghost Practitioners, as well as the combatants I slew earlier, are just phantasms created by this space, not truly existing... Otherwise, if the Bloodthirsty Sword could absorb the essence blood of these strong beings, I could have already broken through to the realm of Super Warriors…"

Lin Yun glanced at the spot where he had slain the Ghost Practitioner, shook his head slightly, and murmured softly.

"Hm? Wait a minute!"

However, just as Lin Yun was thinking this, his pupils shrank slightly, and he spoke quickly.

There was a sense of urgency in his voice as he spoke.

But it was there, at the place where the ghost practitioner fell, that he discovered something... Could it be an item left behind by the ghost practitioner?

This was still the first time Lin Yun encountered loot after defeating such a powerful adversary in the Heavenly Principle Tower.

Previously when he defeated them, they would die, and their entire bodies would disintegrate into nothingness.

"Huff!"

With a raise of his hand, Lin Yun summoned the object into his grasp; it was a tiny, grey, translucent grain, about the size of a rice grain.

The grey color was almost the same as this space, and if not for a ray of sunlight that happened to shine upon it, Lin Yun might not have discovered it at all.

"What is this..."

As soon as the grey, translucent grain touched his hand, Lin Yun's face changed, and he muttered in slight surprise.

He could faintly feel that this grey, translucent grain seemed to enhance his mental strength.

A person's mental strength is the energy that sustains the soul, intertwined with the soul in a very mysterious and powerful way. Because of this, it is very hard for a person's mental strength to increase.

The Cosmic Trading System could enhance a person's mental strength, but it wasn't until later that Lin Yun realized such enhancements had significant flaws, lacking a certain essence of life.

Once a person's mental strength level was increased in this way, it became extremely difficult to naturally improve it further.

Fortunately, he later obtained a multitude of precious Heavenly Principle Fruits, which allowed him to remedy the flaws in his mental strength.

Any heavenly resource that could enhance a person's mental strength without any side effects was incredibly valuable.

This grey, translucent grain, its level unknown, gave him a strong feeling of it being a treasure. This sensation even surpassed the feeling he got from those not-low-level Heavenly Principle Fruits.

"Let's consume a little and try it!"

Lin Yun thought to himself in secret.

With that thought, Lin Yun used his fingernail to scrape off a bit of the crystal and placed it in his mouth. During this process, Lin Yun found that the crystal was extremely hard; he had to exert quite a bit of strength to do so, which surprised him greatly.

He knew that the Heavenly Principle Fruits were also extremely precious and supposedly had a similar function, being very hard too, but when compared to this grey crystal, they were far inferior.

"Boom——"

Once the grey crystal shard entered Lin Yun's mouth, it immediately transformed into a vast and pure surge of spiritual energy, quickly entering Lin Yun's mental space and converging with his mental strength, causing a rapid increase in his mental strength.

"It really does increase mental strength... and the effect is so powerful..."

Lin Yun exclaimed happily.

It was just a small crystal shard, yet it resulted in a tremendous increase in his mental strength, and what mattered most... the quality of this increased mental strength was extremely high!

Lin Yun closed his eyes, carefully savoring the feeling.

An hour later, the mental strength produced from that small crystal shard was not only thoroughly refined by him, but he also analyzed it completely. The increased mental strength had no issues.

It didn't have the same flaws as the mental strength increased through the method provided by the Cosmic Trading System.

"This is wonderful!"

Lin Yun opened his eyes, his face brimming with excitement.

After consuming this grey crystal, his mental strength would definitely see a significant boost.

As his strength continued to grow, the level of his mental strength had always been his weakness. Thankfully, Wei Firestone and Ao Firestone were not skilled in mental strength attacks, and the Bloodthirsty Sword he wielded had a strong defensive capability against mental strength attacks.

Otherwise, during the earlier battle, Wei Firestone and Ao Firestone could have simply used powerful mental strength attacks to render him powerless to resist.

By increasing his level of mental strength now, if he encountered any trouble later on, he would have much stronger capabilities to cope with it.

Since arriving at this level of the tower, the first enemy he faced was the powerful ghost practitioner. He estimated that the likelihood was high that he would continue to encounter ghost practitioners in the future, and, in the final stage, he would probably face a ghost practitioner at the third level of the Super Warriors realm.

If it was just one, that was manageable, but what about two, three, or four?

And what if he encountered a particularly formidable ghost practitioner within the third level of the Super Warriors realm?

These ghost practitioners were very skilled at mental strength attacks. By enhancing his mental strength now, he would undoubtedly be well-prepared and, arguably, it was as timely as a much-needed rain.