"What was that you just threw?" After Song Xia and the others were teleported to a secret passage and felt temporarily safe, Bai Xiao couldn't help but ask curiously. He also didn't feel any fluctuations in the array or spiritual energy, but how could its power be so great?

"It was developed by mortals, and I obtained it by chance." Song Xia glossed over the details succinctly, but she wasn't lying. After all, she couldn't very well say that she had a system and could buy this thing in the system's shop.

Bai Xiao didn't press further, but was deeply moved: "I never imagined that mortals could be so wise. It seems we really can't be complacent and judge people by their appearance."

"That's right. If those humans hadn't been so arrogant in thinking that we demons were stupid, they wouldn't have allowed me to develop the Song Family Business into such a large enterprise."

"Indeed, there are quite a few flaws. If Qin Taiming only needs to say a word, the trading company will definitely face numerous obstacles. Speaking of which, Qin Taiming is really ruthless. He abandoned his disciple whom he raised with his own hands." Bai Xiao shook his head. Everyone says that the demon race is cruel, but in his opinion, the human race is truly heartless.

Song Xia sneered: "A person like him only cares about the so-called Great Way. Sooner or later, he will be despised by the world."

As she spoke, Song Luo regained consciousness. She had just been fed a spiritual herb and was now much better: "Mother, where am I?"

"It looks like an underground palace." Song Xia looked around, a guess forming in her mind.

"Could this be the place where the immortals passed down their legacy?" Song Luo exclaimed excitedly. The surroundings seemed untouched; there must be treasures inside. "Mother, shall we go take a look?"

"Yes, but be careful."

“There are many patterns on this, and they don’t seem to be from the Qingyang Continent.” Bai Xiao’s expression became serious. “These rare treasures are all varieties I’ve never seen before. Could they really be unique to the Upper Realm?”

Song Luo became more and more excited as she read: "Originally, there were no cultivators on the Qingyang Continent. It was only after the Qingyang Immortals came that ordinary people began to cultivate. This means that besides our Qingyang Continent, there may be many other worlds. I really want to go and see other worlds."

"There will be opportunities. After ascension, you might be able to travel between different worlds."

Song Xia was quite curious: how was this vast world different from the other worlds the system had taken her to? Once her cultivation reached a certain level, would the people of this world also be able to travel to worlds with advanced technology, interstellar space, or even magic?

“Theoretically speaking, it won’t work,” the system explained. “Although there is also the concept of the Great Thousand Worlds here, the laws of heaven and earth are largely the same in each of these worlds. When people from this world go to other worlds, there are barriers of space, time, and laws.”

"Since you're talking about the theory, then it's not entirely impossible?"

"That's right, but it requires a catalyst, an almost impossible catalyst."

"If, and I mean if, this opportunity arises, then could Zero World be saved?"

Song Xia's question left Xiao Ling silent for a long time before she finally spoke softly, "But that's almost impossible. Zero World has no life left, and it has even been abandoned by the laws of heaven and earth."

After it finished speaking, seeing that Song Xia was also silent, it comforted her, "It's okay, Xia Xia. Since I was created and was lucky enough to meet you, it means there is still hope."

Song Xia could only promise, "I will work hard."

"Why did it suddenly disappear?" Song Luo walked at the front, looking at the mural with a puzzled expression. "Are there alien races in the Immortal Realm? What happened after the invasion? Where did those highly skilled immortals go?"

Song Xia's heart sank, and a vague guess formed in her mind.

The so-called immortal realm has probably already fallen, otherwise how can we explain the closure of the ascension passage for thousands of years?

Moreover, in my memory, Qin Xiuyang's ascension came at the cost of sacrificing the entire Qingyang Continent. Why would he take away the vitality of the entire continent?

But how could a newly ascended immortal possibly have the ability to control the vitality of a small world? Unless there is an even greater force controlling everything behind the scenes, but unfortunately, there is no memory of what happened after Qin Xiuyang's ascension.

"Don't yearn for the Immortal Realm too easily. You should know that the immortals in the Immortal Realm are also ordinary cultivators who have cultivated to that level. Look at the cultivators on the Qingyang Continent. Are they pure? Do they care about the people's livelihood?"

When Song Luo thought of cultivators from the Qingyang Continent, the first person that came to mind was Qin Taiming. Then he pursed his lips and thought, "If all those who ascend are like this, then the Immortal Realm is indeed not very good."

"But isn't everyone who ascends to immortality supposed to undergo a heavenly tribulation?"

“Even ordinary advancement involves tribulations, and after reaching the Nascent Soul stage, there is also a test of mental state. But what realm is Qin Taiming at now? All intelligent beings are subject to change.”

Song Luo understood and nodded solemnly.

"So this immortal came to Qingyang Continent after the Immortal Realm was invaded by alien races?"

"We cannot rule out this possibility."

"Look over here." Hearing Bai Xiao's excited tone, Song Xia and Song Luo rushed over.

After walking through the passage, they arrived at a very spacious and luxurious hall. Bai Xiao's gaze fell on a stone chair on the north side of the hall, where a white skull sat.

"Is this the master of this secret realm?"

"Probably." Song Xia's gaze was drawn to the weapons on either side of the skull.

There were six weapons in total. The three on the left were swords: a black heavy sword whose material was indistinguishable, a light blue longsword as thin as a cicada's wing, and a bronze sword engraved with intricate patterns. When Song Xia saw the last one, his expression changed, because this was the sword that Qin Xiuyang had used to kill his son in their final battle.

Seeing her heavy breathing, Song Luo asked worriedly, "Mother, what's wrong?"

"It's nothing, I'm just a little curious about how these swords were forged. The immortals' corpses have all turned into skeletons, but these weapons are still shining brightly."

Song Luo was also very excited: "These three swords are really beautiful."

"If you want it, Uncle Bai will get it for you." After saying that, Bai Xiao flew forward.

Song Xia shouted, "Don't move yet! We won't get it so easily!"

Bai Xiao froze on the spot and quickly stopped, but he still triggered the mechanism. The passage, which had just been empty, was suddenly flooded with countless ferocious beasts and cultivators.

"They are not living creatures, but mechanical beasts."

Song Luo took a deep breath: "This is too extravagant. How many materials must be used to refine it! And they are all cultivated to the level of Nascent Soul or above."

Song Xia and Bai Xiao were dealing with cultivators at the Integration Stage and above. Although the three of them had many tricks up their sleeves, there were still too many of them, especially with the Tribulation Transcending Stage cultivators among them. They were quickly covered in wounds and exhausted from dealing with them.

Song Luo gritted her teeth and charged toward the pale blue longsword.

Song Xia's expression changed, and as she gasped for breath, she was shocked to find that Song Luo had taken the long sword into his hand.