The "Crimson Jade White Bone" in the space had gone through its sixth, seventh, and eighth cycles of growth over tens of thousands of years.
With each cycle, its toxicity increased.
By now, its potency was so terrifying that even Xiao Fei felt a sense of dread.
He dared not use it lightly, fearing its effects himself, as he had yet to test the efficacy of the antidote pills he had refined.
He had merely made numerous improvements upon the previous Tai Xu Di Hun Dan, adding several spiritual herbs specifically for the soul. All materials used were spiritual herbs over ten thousand years old.
Even so, he remained uncertain of its effectiveness.
In truth, over the years, he had been hoping for a cultivator at the Integration stage to take a disliking to him and seek him out.
This would have provided him with an opportunity to test his medicine without any psychological burden.
However, sometimes, even when one was cautious and kept a low profile, others would still bully the weak and step on them.
Now that he wished for someone to bully him, no one stepped forward. Instead, everyone appeared remarkably friendly.
Even those notorious figures in the Tian Yuan Realm greeted him with smiles, which Xiao Fei found rather frustrating.
He and Huang Feifei were now treated as honored guests by the major powers, with everyone needing their favor at some point.
Furthermore, his elder sister was a cultivator at the Integration stage. There were only thirty to forty such cultivators in the entire Tian Yuan Realm.
As long as they had a modicum of sense, no one would dare to provoke Xiao Fei and Huang Feifei.
Constantly lacking a subject to test his medicine on, Xiao Fei finally decided to harness human initiative and create his own conditions.
Since he had nothing else to do, he decided to go find a giant to test it on.
He had previously mapped out the Jue Ling Suo Tian Array on the Southern Wasteland Continent, making entry and exit very convenient, a journey of little more than a month.
If the opportunity arose, he also planned to venture into the Giant Realm to gather some energy.
The Giant Realm had no spirit stones, but they did use something similar to spirit stones.
It was a crystal condensed from domineering energy, which the Giants believed to be the source of their power, hence they called it Origin Crystal Stone.
He had tried it before; this Origin Crystal could be absorbed by the space and by himself, and then converted into spiritual energy or magic power using the Hun Yuan Gong.
It was an excellent substitute for spirit stones. If he ran out of spirit stones, he could also earn some Origin Crystal Stones to replace them.
Although the Tian Yuan Realm was prosperous, he was well aware of the insatiable appetite of the Space Seed for spirit stones, and he knew he would eventually run out.
With this thought, he informed Huang Feifei and, traveling alone, took a large teleportation array to the Southern Wasteland Continent.
Since the last devastation caused by the Giants, the Southern Wasteland Continent had remained sparsely populated.
The inhabitants of the Southern Wasteland Continent were all mixed-bloods with extremely low fertility rates. Even after hundreds of years of recuperation, the continent had not managed to prosper.
Following the map he had drawn, Xiao Fei directly traversed the Jue Ling Suo Tian Great Array.
As he was about to completely pass through the array, he entered his space and released No. 2.
Since No. 2 began cultivating the Giants' techniques, his physique started to change, growing taller and larger. Now, his size rivaled that of mountains, not far removed from that of a true giant.
Giants had long legs, and following the mapped route, he advanced with great strides, his speed being quite fast.
As he emerged from the darkness of the Jue Ling Suo Tian Array, he saw from a distance a giant idly lifting a colossal stone and smashing it into the array.
Fortunately, the target was not him, but the Jue Ling Suo Tian Array itself.
"Eh! Who are you? How did you emerge from the Great Array?"
The giant, holding a stone larger than a house, curiously observed Xiao Fei, who was a head shorter than him.
"I accidentally entered the array many years ago, got lost inside, and only today managed to escape."
Xiao Fei concocted a somewhat far-fetched explanation, unsure if the giant would believe him.
The giant scratched his bald head. His barren mind occasionally produced flashes of insight; scratching it more might stimulate some potential in that area.
"That's not right! We Giants who cross realms are all accounted for, and I know them all. There's no little brat like you among them!"
At this moment, a spark of inspiration struck the giant, and he analyzed some discrepancies.
"I remember now, many years ago, a juvenile Giant tribe member appeared, stole our Earth Spirit Fruit Tree, and then vanished."
"Speak! Is it you?"
The giant was astonished by his sudden discovery.
"It must be you! You! Hand over the Earth Spirit Fruit Tree!"
A pair of enormous hands reached out and grabbed Xiao Fei, holding him firmly.
This time, he did not use his laws to escape. Instead, he subtly took out a jade bottle, waiting for the opportune moment.
The giant's emotions grew increasingly agitated. He grabbed Xiao Fei and shook him violently, his mouth agape, emitting a foul, unbrushed breath that made Xiao Fei want to vomit.
"If you don't hand over the Earth Spirit Fruit Tree, I'll eat you!"
As the giant spoke, he opened his mouth wide and bit down on Xiao Fei's nose, tearing off a piece of flesh.
This fellow was truly willing to bite without restraint, indiscriminate about what he ate.
Xiao Fei seized this opportunity to throw the jade bottle in his hand into the giant's mouth.
Then, he expanded his law domain, instantly escaping the giant's grasp. Following this, a few blinks and dashes, and he was already a hundred miles away.
The giant, having bitten off Xiao Fei's nose flesh, mixed with the eighth-cycle "Crimson Jade White Bone" poison from the bottle, found the taste to be exceptionally sweet as he chewed.
His mouth was filled with fragrance, his body felt incredibly comfortable, and he felt as if he were floating towards immortality.
Having tasted such a wondrous sensation, he was unwilling to let Xiao Fei go and immediately pursued him at a quick pace.
Xiao Fei continued to flee. Whenever the giant was about to catch up, he would use his teleportation technique to quickly widen the distance.
Ever since he comprehended the Law of Wind, his speed and distance for teleportation had increased significantly.
While escaping, he carefully observed the giant's reactions behind him.
He noticed that although the giant appeared as frantic as ever, his speed had noticeably decreased, and his strength was rapidly declining.
Subsequently, he led the giant on a chase like flying a kite, with the giant's strength weakening as they moved.
Gradually, he could no longer run, and leaning against a large mountain, he gasped for air.
Despite his extreme fatigue, a blissful smile adorned his face.
Seeing Xiao Fei return, the giant's face lit up with joy.
"Let me bite you again! Just a little bite!"
Xiao Fei strode forward and kicked him. The giant was now like a puddle of mud, yet he still harbored the desire to bite his flesh.
Extending a hand, he pressed it onto the giant's head and probed its soul with his divine sense.
He discovered that the giant's soul was now riddled with holes, tattered and torn, and as time passed, the damage to his soul was only increasing.
It would now be as easy as pie for him to kill this giant. Even if he did nothing, with the increasing toxicity, this giant was doomed to die.
However, Xiao Fei did not kill him outright. Instead, he took out an antidote pill and fed it to the giant.
"Ptooey, ptooey, ptooey!"
"This is not good, it's so bitter, not tasty at all!"
Upon the antidote entering his mouth, the giant felt as if his mouth was filled with gall. The previously blissful sensation of floating towards immortality also receded like a tide.
It was replaced by an overwhelming sense of fatigue and unbearable pain throughout his body.
This experience was too agonizing; he greatly missed the previous feeling of floating towards immortality.
Xiao Fei ignored the giant's reaction, his divine sense still observing the changes within the giant's soul.
The low-grade pill he had just fed the giant had some effect, significantly slowing the corrosion of the giant's soul, but it had not completely stopped.
He estimated that a medium-grade antidote pill should be able to completely halt the further spread of the poison.
A high-grade antidote pill might even be able to repair the damage to the giant's soul.