However, many Divine Kings of the Supreme Ancient Domain remained calm, showing no surprise at all.
Void Heaven Lord explained, "The Thunder Continent is the place where a supreme-level Ancient Monarch from our Supreme Ancient Domain, who cultivated the Thunder Great Dao to its peak, fell in battle. This Thunder Monarch fought a great battle with an Ancient Monarch from the Ultimate Ancient Domain. Although he perished, his Thunder Great Dao erupted completely, suppressing and killing that Ancient Monarch from the Ultimate Ancient Domain. The Thunder Great Dao he left behind is ever-flowing, thus forming this Thunder Light Shield covering the Thunder Continent."
Ye Chen nodded. The Two Realms Battlefield was filled with countless years of conflict between the Supreme Ancient Domain and the Ultimate Ancient Domain, with far too many powerful experts having fallen here.
It was not strange for Ancient Monarchs to have perished here.
"The Thunder Light Shield's strength fluctuates," said the Lord of the Earth. "At its strongest, even Quasi-Monarchs find it difficult to enter. But at its weakest, even Transformation Divinities can enter. However, based on calculations of its fluctuations, in three days' time, it will reach its weakest period, allowing true entry."
Ye Chen's figure flickered, arriving before the Thunder Light Shield.
"Be careful, Battle Saint King," the Lord of the Earth hurriedly reminded. "The Thunder Light Shield reacts differently to each person, always launching attacks stronger than the intruder."
Boom! Rumble!
Visible to the naked eye, the Thunder Light Shield covering the entire Thunder Continent suddenly erupted with countless terrifying thunderbolts, surging forth.
They were streaks of thunder light dragons, each tens of thousands of miles long, all converging at one point, transforming into myriad thunder dragons that collectively blasted towards Ye Chen, who was about to intrude.
The terrifying might of that attack would make even a Quasi-Monarch's heart race, sensing an extremely dreadful sense of crisis.
Swish!
Ye Chen instantly retreated, causing the myriad thunder dragons to be unable to catch up, ultimately returning to their respective places.
Just now, when Ye Chen approached, he clearly felt that the Thunder Light Shield seemed to gather all its thunder power to rush at him, attacking him and blocking his entry.
It seemed it truly reacted differently to each person. Even if one were a Quasi-Monarch, the Thunder Light Shield would still focus the vast majority of its thunder power to attack.
No wonder that at its strongest, even Quasi-Monarchs found it difficult to enter. So that was the reason.
A fragrant breeze brushed his face as Yu Qing arrived by his side, saying, "Ancient Monarchs cannot be underestimated. Even after falling, their Thunder Great Dao remains completely on this continent. Once a Great Dao condenses into a Divine King Spirit, it awakens a certain level of intelligence, let alone the higher-level power of Monarch Rules. Moreover, that Ancient Monarch from the Supreme Ancient Domain cultivated the Thunder Great Dao for almost his entire life. How powerful he must have been! Just his Thunder Monarch Rules alone likely numbered at least over a thousand, perhaps even more. Even after countless years of erosion, some Monarch Rules may have dissipated with the passage of time, but they still cannot be underestimated. Their overall power is likely not inferior to a Heaven-Defying Quasi-Monarch."
Ye Chen looked at the Thunder Light Shield enveloping the vast continent, a look of gravity also appearing on his face.
Even he faintly sensed a hint of danger, not daring to enter lightly.
Void Heaven Lord said, "Please be patient. In three days, this Thunder Light Shield will weaken to its extreme, and then it will no longer block entry."
"For now, that seems to be the only course of action," Ye Chen nodded somewhat helplessly.
"However, similarly, this Thunder Light Shield is actually also a great opportunity," Void Heaven Lord said with a smile.
"A great opportunity?" Hearing this, Ye Chen, Yu Qing, Di Wushuang, and others all looked at Void Heaven Lord.
Void Heaven Lord smiled slightly. "The Thunder Light Shield is the power of Monarch Rules left behind by our Supreme Ancient Domain's Thunder Battle Monarch. Generally speaking, such Monarch Rules once had an owner, having followed the Thunder Battle Monarch for many years, akin to a master-servant relationship. Unlike the Dao Stars in the Emperor Star Secret Realm, which were condensed by the Supreme One with absolute Imperial Dao might, truly ownerless, others normally cannot refine such Monarch Rules."
"But things are often not absolute. These Thunder Monarch Rule powers have experienced the erosion of long years. The mark of the Thunder Battle Monarch within them has long since gradually dissipated with the passage of time. What remains now is actually the purest Thunder Rule power, far surpassing the Thunder Great Dao power contained within the tenth-level Thunder Dao Star of the Emperor Star Secret Realm. As long as you have the capability, you can completely refine this entire Thunder Light Shield for yourself, thus mastering the Thunder Monarch Rules left by the Thunder Battle Monarch."
Upon hearing this, many people's hearts stirred.
The legacy of an Ancient Monarch—the number of Monarch Rules possessed by such an existence far surpassed that of a Quasi-Monarch by an unknown degree.
Even after the erosion of long years, with some having returned to heaven and earth, what remained was still astonishing. Moreover, without the original owner's mark, it was akin to an innate Dao weapon—born innately, ownerless. Once refined, it could truly recognize a master and become one's own.
The power of such Thunder Monarch Rules was so great that even if most had dissipated, the remaining power would surely be comparable to a Heaven-Defying Quasi-Monarch.
Whoever could master the Thunder Light Shield would almost be equivalent to a peerless powerhouse at the Heaven-Defying Quasi-Monarch level, capable of dominating the world's affairs, sweeping all before them, and being invincible below the Monarch level.
The Angel Imperial Son was very calm. "If that's the case, why have you never refined it all this time?"
The five Quasi-Monarchs of the Supreme Ancient Domain smiled wryly. Among them, the Lord of the Earth said, "It's not that we don't want to refine it, but that we cannot. This Thunder Light Shield has only weakened to this point in recent years, but it is still very powerful, not inferior to a Heaven-Defying Quasi-Monarch. It is truly difficult for us to resist, let alone attempt refinement. Naturally, it is extremely challenging. Moreover, the core essence has never been found. Otherwise, we wouldn't have had to wait bitterly until today, only able to watch helplessly."
The others all nodded. These words were correct.
The Thunder Light Shield was, after all, the legacy Great Dao power of an Ancient Monarch. Calling it vast and peerless was not an exaggeration at all. Moreover, the Thunder Light Shield it formed was difficult for even Quasi-Monarchs to break through, let alone refine.
Perhaps only by truly finding the core point could one truly refine this Thunder Light Shield and gain true control.
"If you are lucky enough this time, you might encounter the core of the Thunder Light Shield, refine it in one fell swoop, directly becoming the ultimate existence among Quasi-Monarchs, truly invincible below the Ancient Monarch level," Void Heaven Lord said.
However, Ye Chen and the others remained calm, not holding out much hope because it was too difficult, as difficult as ascending to heaven. Otherwise, the Lord of the Earth and the many other powerhouses from the Supreme Ancient Domain and Ultimate Ancient Domain wouldn't have waited for so many tens of thousands of years without truly claiming it for themselves.
Ye Chen sighed inwardly. What a pity. This time, the Great Emperor Reincarnation Body remained in the Emperor Star, continuing to refine the star core. Otherwise, if the Great Emperor Reincarnation Body took action, the chance would be extremely great.
"Fellow Daoists, have the powerhouses from the Ultimate Ancient Domain also arrived?"
The Lord of the Earth said, "They are bound to have come; they cannot give up on a Supreme Secret Realm. However, the direction from which they come is opposite to the location of our Supreme Ancient Domain. Therefore, they are on the other side of the Thunder Continent."
Ye Chen looked at the Thunder Continent, his gaze suddenly becoming profound, as if piercing through the entire Thunder Continent to see the other side.
He very much wished to immediately head to the other side of the Thunder Continent, but ultimately did not act, as it was unwise. The Ultimate Ancient Domain definitely had Quasi-Monarchs present, and their numbers might not be fewer than those on the Supreme Ancient Domain's side.
Wait, then!