Su Chen quickly and efficiently collected the 24 bright red energy crystals.
These energy crystals were about the size of a fist. They were translucent, and did not feel hard to the touch. Instead, they were somewhat soft. He gathered these 20 energy crystals together, and with some kneading, they directly became a red sphere about the size of a basketball. The energy waves that it exuded were even more intense.
"The energy of this thing does not seem to be pure. It should not be directly absorbed as Spiritual Qi. What specific uses does it have?" Su Chen asked.
"This is life energy. When adding some when refining a treasure, it can increase the vitality of the treasure, making it more spiritual."
With a thought, Su Chen summoned Xiao Gu.
"Sword Spirit Xiao Gu greets Master," Xiao Gu said with grievance.
Recently, Su Chen had been using Pangu's divine axe as his treasure, and rarely used a sword. Furthermore, the few times that he had used a sword, it was the Sword of Dao Verification. Once the sword might was unleashed, even the most powerful flying sword would instantly shatter. Flying swords had become single-use tools to Su Chen. As a sword spirit, Xiao Gu naturally had no use for it.
Su Chen handed the energy sword crystal to Xiao Gu. "This thing is for you. Study it and see if it has any use."
"Life energy crystal?"
Xiao Gu was pleasantly surprised, and said, "Many thanks, Master. With these life energy crystals, Xiao Gu can use my own soul to forge a flying sword. It can at least reach the standard of an eighth-grade Saint Tool."
"Oh?"
An eighth-grade Saint Tool was still not bad.
However, to Su Chen, it seemed to still be a little lacking.
"Can you forge a ninth-grade flying sword?"
"Ninth-grade …" Xiao Gu was stunned. Even eighth-grade was not satisfied. Master was really greedy.
She pondered for a moment, and said, "Theoretically, it should be possible. However, to forge a ninth-grade flying sword, just relying on these life energy crystals is not enough. I need more materials."
"That's fine. There's no rush. Take your time. Tell me what you need, and I will prepare it for you."
"Then it's easy. Then Xiao Gu will go and study it now."
"Go."
…
In the depths of the fourth level of Heaven Reaching Tower.
"Pu!"
A Ferocious Beast fell at the feet of Su Chen.
Su Chen was unscathed, but his aura was a little chaotic.
The closer he got to the depths of the fourth floor, the stronger the ferocious beasts Su Chen encountered. Although they did not pose too much of a threat, dealing with them was starting to become difficult.
Previously, under Su Chen's triple possession domain, he could basically finish off the beasts with one punch. But now, even ten punches might not be enough.
Moreover, the fierce beasts here could already cause damage to Su Chen's triple possession domain. If he was hit, although it wouldn't threaten Su Chen's life, he would inevitably suffer serious injuries. Although it wouldn't be a serious injury, he still needed to be extra careful.
However, the more dangerous the environment, the more excited Su Chen became.
After a day of battle tempering, Su Chen could already vaguely feel the opportunity for a breakthrough.
Su Chen estimated that if he stayed in the fourth level for another two days, he would be able to completely break through the bottleneck and prepare to transcend the tribulation.
"Roar!"
The roar of a group of Demonic Beasts came from not far away.
Su Chen's spirit was lifted, and he immediately went in search of the sound, beginning the next round of battle.
In the blink of an eye, another day passed.
Su Chen had already reached the center of the fourth floor, and he could see the mountain peak leading to the fifth floor.
However, Su Chen didn't dare to approach rashly.
He sensed the aura of at least 200 Ferocious Beasts around the mountain peak.
To be honest, Su Chen was quite puzzled. Where did Yu Tianheng catch so many powerful Ferocious Beasts back then? In the entire fourth floor of the Tong Tian Tower, the number of Heaven's Equal Realm Ferocious Beasts was at least 2,000.
What kind of concept was 2,000 Heaven's Equal Realm Ferocious Beasts?
Su Chen suspected that all the Heaven's Equal Realm experts in the cultivation world of the Spirit Mountain added up would not be as many as the Heaven's Equal Realm Ferocious Beasts in the Tong Tian Tower.
And this was only the fourth floor. The Tong Tian Tower had 99 floors!
Su Chen looked up and frowned. "What kind of scene should it be up there?"
Unimaginable.
Su Chen really couldn't imagine it.
If there was a chance, Su Chen wanted to at least go to the fifth floor to see if it was filled with Divine King Realm Ferocious Beasts.
…
One day later.
"Ding … congratulations to the host for subduing the 'Star Brain Alien Bug'."
Su Chen's body was covered in wounds. Two layers of his three layers of possession had already collapsed, and only the Fire Domain was barely holding on.
In order to defeat this Star Brain Alien Bug, Su Chen had taken a huge risk.
The Star Brain Alien Bug was the same as Shaluo, a Primordial Beast. Its strength was average, but its mind energy was extremely developed. Its mind energy could even take physical form to attack Su Chen, and could even break through Su Chen's mind energy defense. At the very least, if Su Chen's mind energy relaxed even a little, the Star Brain Alien Bug's mind energy would drill into his body, wantonly destroying Su Chen's internal organs.
Su Chen was hit several times, and none of his internal organs were intact. Even his sea of consciousness was attacked.
Su Chen only managed to get close to the Star Brain Alien Bug after spending a total of seven Resurrection Cards.
Once he got close, the Star Brain Alien Bug was no longer much of a threat. He could finish it off with one punch.
Su Chen did not plan to subdue this Star Brain Alien Bug. After all, the Ferocious Beasts on the fourth floor had very strong self-awareness. They would rather die in battle than be subdued as a pet. Su Chen had tried several times before, but those Ferocious Beasts would rather self-destruct than submit to Su Chen's control.
However, before Su Chen killed the Star Brain Alien Bug, it used its mind energy to express its intention to submit to Su Chen. It wanted to live.
The Star Brain Alien Bug was very intelligent, and it cherished its life very much. That was why it begged for mercy. In this regard, the Star Brain Alien Bug was very different from other Ferocious Beasts.
Su Chen carefully looked at the Star Brain Alien Bug's attributes.
Star Brain Alien Bug: Loyalty 75, Late-stage Heaven's Equal Realm, Combat Power 594,000. Passive Skill: Spirit Awakening: The longer it lives, the stronger its Spirit. Current Spirit Power: 8,758,000. Thought Realization: Through a huge amount of Spirit Power, it can create an imagined entity in its mind. The entity can maintain a stable state for ten seconds. After ten seconds, it will automatically collapse and disappear.
It was this Thought Realization skill that had caused Su Chen a lot of trouble.
The Star Brain Alien Bug's combat ability was only Thought Realization. However, this skill alone was enough to make it one of the most dangerous Ferocious Beasts on the fourth floor. So far, it was the only Ferocious Beast that could hurt Su Chen.
"How long have you lived?" Su Chen suddenly asked.
The longer the Star Brain Alien Bug lived, the stronger its Spirit Power would be. With such a strong Spirit Power, it must have lived for quite a long time.
Two tiny transparent antennae extended from the top of the Star Brain Alien Bug's head and gently touched the back of Su Chen's hand, transmitting a wisp of mental information to Su Chen.
"Seventeen million and six hundred thousand years?"
Su Chen was surprised. The Star Brain Alien Bug's lifespan had exceeded ten million years.
Was this for real?
Pets shouldn't lie to their masters. The Star Brain Alien Bug should be right. It really had lived for seventeen million years.
Even a Ferocious Beast at the peak of the Heaven's Equal Realm had a lifespan of a million years. Seventeen million years … Su Chen had never heard of anyone who could live for so long. Even the five famous Great Emperors of the human realm would find it difficult to live for more than ten million years.