"Okay."
The Golden-Horned Dragon Silkworm also knew the situation was critical and immediately agreed.
At that very moment.
"Huh?
It seems there's no movement anymore?"
Hun Lao and Ye Yunfei simultaneously discovered that the living beings within the valley were not giving chase, and the energy released from that crystal coffin had already contracted back.
The valley was calm and peaceful!
Ye Yunfei and Hun Lao gazed far into the valley and saw all those living beings kneeling prostrate on the ground just as before, motionless.
"I understand now. That woman is unwilling to let those beings leave the range of the valley. Otherwise, she would be unable to control them and make them stand guard over her spirit."
Hun Lao said with sudden realization.
"That is possible."
Ye Yunfei nodded.
"Too terrifying. Forget about us, even a Half-Emperor wouldn't dare provoke her."
Hun Lao, recalling the earlier encounter, was still shivering with fear.
"What exactly is the origin of this battlefield, to contain such a terrifying existence."
Ye Yunfei was also somewhat shaken.
"Don't think too much about it.
We should hurry and leave this old battlefield. This place is too dangerous.
If we continue wandering around here, we might run into an even more formidable existence and be unable to escape."
Hun Lao said.
"Alright, let's leave.
At any rate, we successfully rescued the Demon Ancestor, so this journey wasn't in vain."
Ye Yunfei laughed.
Thus, Ye Yunfei began to head back along the route they had come.
"Young Master Ye Yunfei, our ancestor has been unconscious and shows no signs of waking. What is wrong with him?"
Inside the Phantom Tower, the Demon Race expert stood guard beside the Demon Ancestor. Seeing that the ancestor remained unconscious, he was extremely worried and sent a Sound Transmission to ask Ye Yunfei.
After the Demon Ancestor was rescued, Ye Yunfei had teleported him into the Phantom Tower. However, ever since leaving that valley, the Demon Ancestor had remained in a state of unconsciousness.
"It's fine.
His Soul Body has been shackled by a very powerful illusion law. I'll help him cleanse it later, and he will wake up."
Ye Yunfei probed the Demon Ancestor's soul sea with his perception and spoke to the Demon Race expert.
"Alright, Young Master Ye Yunfei. We are counting on you."
The Demon Race expert replied gratefully.
At this time, the Longevity Palace Master and the three other Star-Gazing Realm experts were all inside the Phantom Tower. Ye Yunfei did not let them out again.
This ancient battlefield was far too dangerous. Even Ye Yunfei had to proceed with utmost caution. Having them out would only distract him and force him to protect them.
Ye Yunfei drew out that Half-Emperor level longsword, using it to continuously deflect against the various dangers that cropped up from time to time, and retreated along the way.
"This war involved multiple core worlds and multiple races. The weakest participants were all at the Star-Gazing Realm, and Star-Gazing Realm cultivators were, at most, common soldiers and lowly cannon fodder on this battlefield.
The strongest were Half-Emperors. It's just unknown whether there were any full Emperor level experts!"
At the same time, Ye Yunfei carefully observed this chaotic ancient battlefield, musing to himself.
Along the way, Ye Yunfei had already witnessed quite a few remnant energies of the Half-Emperor level!
This proved that many Half-Emperor level experts had fought in this war.
BOOM—
Suddenly, at a certain location in the distance, the earth shook and the mountains quaked. A vast and terrifying energy surged into the sky like a heaven-scraping tsunami.
"Emperor-level energy!
This war truly did have Heavenly Emperor level experts participating!"
Sensing the remnant energy fluctuations erupting turbulently from the ends of the earth in the distance, Ye Yunfei couldn't help but feel shock in his heart.
"Good heavens!
This battle actually involved Heavenly Emperor level experts!
How is that possible?
In the long history of the Three Thousand Major and Minor Worlds, which great war saw Heavenly Emperor level experts participating?"
Hun Lao also sensed that distant surge of Heavenly Emperor level energy and couldn't help but exclaim in shock.
"Not just Heavenly Emperor level experts. I suspect that this war even involved beings stronger than Heavenly Emperors.
Don't forget, the woman we encountered in that valley earlier was most likely stronger than a Heavenly Emperor.
She was most likely a participant in this war as well."
Ye Yunfei thought for a moment and spoke.
"That makes sense!
This is truly astonishing!
What kind of war was this?"
Hun Lao was also shocked to the extreme.
"I know which war this was."
Ye Yunfei swept his gaze across the battlefield radiating with killing intent and said slowly.
"The World-Destroying War?"
Hun Lao immediately realized what Ye Yunfei was about to say.
"Yes.
In the history of the Three Thousand Major and Minor Worlds, it seems only the World-Destroying War involved Heavenly Emperor level experts. And from what I know, many Heavenly Emperor level experts participated in that great conflict."
Ye Yunfei nodded.
In fact, in his past life, after Ye Yunfei had cultivated to the level of Heavenly Emperor, he had spent a period of time specifically investigating and researching the World-Destroying War, though his gains were not great.
The information Ye Yunfei obtained from his investigation was that the World-Destroying War was a brutal war that engulfed the entire Three Thousand Major and Minor Worlds. Countless powerful forces, races, and experts perished in this war. Even Heavenly Emperor level experts fell in great numbers.
Within some extremely ancient factions across the Three Thousand Major and Minor Worlds, there existed a number of incomplete ancient texts recording that this World-Destroying War was ignited by Deities!
"Whether this World-Destroying War was truly ignited by Deities is hard to say, but it most likely involved beings even stronger than Heavenly Emperors.
Perhaps they were indeed Deities!"
Ye Yunfei recalled the woman inside that valley.
"Forget it, we can't investigate this any further.
If this truly is the battlefield of the World-Destroying War, where even Heavenly Emperor level experts fell… the waters here are far too deep. Given our current strength, staying here carelessly could cost us our lives.
Let's get out quickly."
Hun Lao said, his heart filled with fear and trepidation.
"Alright, let's hurry and leave.
Once my strength is sufficient in the future, I will return here to explore slowly."
Ye Yunfei nodded, understanding Hun Lao's point.
Given his current strength, staying here was indeed very dangerous.
"You still want to come back later?"
Hun Lao curled his lips.
"Weren't you looking for the Guhuang Great Emperor?
The Guhuang Great Emperor participated in the World-Destroying War. Since this is the battlefield of that war, perhaps there might be clues about the Guhuang Great Emperor."
Ye Yunfei said.
"That makes sense!"
Hearing this, Hun Lao immediately had a gleam in his eyes.
"Let's go! We must search immediately! Perhaps we can really find traces of the Guhuang Great Emperor!"
Hun Lao started getting excited, impatient. He wanted to start searching for the whereabouts of the Guhuang Great Emperor right away.
"We'll look for him later.
With our current strength, we can't roam this battlefield freely. It's too dangerous.
Don't worry. Once my strength is sufficient in the future, I will definitely return here with you to search for the Guhuang Great Emperor's whereabouts."
Ye Yunfei was taken aback and hurriedly tried to persuade him.
Next, after a round of persuasion, Ye Yunfei finally managed to talk Hun Lao down and get him to agree to return later and search for clues regarding the Guhuang Great Emperor's whereabouts.
Not long after, Ye Yunfei returned to the place before the Ice Demon's corpse.
Around this Ice Demon corpse, frigid currents had been rolling and roaring constantly. Crystals of profound ice hung strung across space, and the ground was covered in a thick layer of profound ice.
"This Ice Demon's strength while alive must have been utterly terrifying. Despite having fallen for such a long time, it still retains such potent and chilling remnant energy."
Hun Lao couldn't help but sigh with emotion.
"Yes, this Ice Demon's power during life was indeed horribly strong."
Ye Yunfei nodded.
"Our descendant is still in secluded cultivation and is not yet ready to leave seclusion, lest it affect the results of his cultivation.
You must wait here for a period of time."
Suddenly, a faint phantom appeared on the Ice Demon's corpse. It was the remnant soul of the Ice Demon.
"Alright, Senior. We will wait here for a while then."
Ye Yunfei nodded.
For the sake of the Ice Demon's cultivation, they had no choice but to wait.