Twelve days after entering the Sea Cliff Ruins space, the Light Element Elf broke through to the Totem level.
Moreover, less than one-fifth of the Source Orb of Light was consumed, allowing for further enhancement of the Light Element Elf's strength.
A few days later, the Dark Element Elf, with the help of legendary resources provided by Professor Xie Gaoyang and others, also grew to the Totem level.
With the breakthrough of the two elemental elves, Ling'er's cultivation also accelerated.
On the twenty-fifth day of entering the Sea Cliff Ruins space, Ling'er broke through to the Overlord level.
With Zheng Dong's current physical strength, contracting an Overlord-level pet beast across levels was not an issue.
This was because Ling'er was symbiotic with Zheng Dong.
Ling'er's breakthrough also enhanced Zheng Dong's strength.
With the help of Ling'er's nascent divinity, Zheng Dong's understanding of bloodline powers such as Azure Dragon and Vermilion Bird became more profound.
He also had some ideas about condensing his own nascent divinity.
Continuing to cultivate, Ling'er, who had reached the Overlord level, condensed more Light and Dark Element Elves.
Among them, the original Emperor-level Light and Dark Element Elves were showing signs of breaking through to the Overlord level.
Additionally, Xiao Qing and Mao Mao broke through to the Monarch level.
Yin Xue also broke through to the Emperor level.
Mao Mao's breakthrough was due to the Cosmic Void Divine Sand. Although she hadn't fully comprehended it, she had grasped some spatial-temporal power.
However, Mao Mao's racial level was High Monarch, and further advancement could only be achieved through evolution.
Xiao Qing and Yin Xue, who hadn't broken through in their previous cultivation, naturally broke through this time.
Only Jing Jing had not broken through yet.
As the agreed-upon time with the Spirit of the Ruins approached, Zheng Dong and the others concluded their cultivation.
The only regret was that the Fire and Wind Element Elves, both at the Overlord level, had not broken through to the Totem level.
However, it was imminent.
The Fire and Wind Element Elves, both at the Overlord level, had also taken half a step into the Totem level.
After leaving the Sea Cliff Ruins space, Zheng Dong prepared to head to the Fire God Sect.
However, Shen Jiuxiao and her two daughters were unaware of Zheng Dong's relationship with the Fire God Sect.
Zheng Dong had no intention of explaining.
He simply stated that he had invited titled legendary Beast Tamers to accompany him to the Netherworld Ghost King Realm.
Shen Jiuxiao was somewhat surprised.
She stared at Zheng Dong and smiled,
"Who did you invite, kid? Tell me, do I know them?"
Zheng Dong didn't know who the Fire God Sect would send with him.
He remained unfazed, calmly saying,
"Auntie, who do you think it will be? Perhaps it's someone you know."
Shen Jiuxiao glared at Zheng Dong.
Without any hints, how could she guess?
However, there were less than thirty publicly known titled legendary Beast Tamers in Yanhuang.
There was still a chance she could guess correctly.
Zheng Dong didn't elaborate. Taking an opportunity to go to the restroom, he contacted Wei Yi, the Saintess of the Fire God Sect.
He asked Wei Yi to bring people to find him.
It was inconvenient for him to return to the Fire God Sect's experimental base at the moment.
Wei Yi was quite agreeable.
She also did not want the Fire God Sect's experimental base to be known to Shen Jiuxiao and the others.
They agreed to meet in Rong City.
Upon returning to Rong City, Zheng Dong temporarily stayed at Shen Bing and Shen Xue's home, waiting for Wei Yi and her group to arrive.
Wei Yi did not make Zheng Dong wait long. She soon arrived outside the villa and rang the doorbell of Shen Bing and Shen Xue's house.
As Zheng Dong walked out of the villa, he saw Wei Yi arrive with three titled legends.
Besides Shi Qian and Professor Nong Xiu, whom he had met before, there was also a burly man over two meters tall.
The man was powerfully built, like a large grizzly bear.
He was also a mixed-race individual within the Fire God Sect, possessing the bloodline power of an Earth Titan, and was very strong. His contracted pet beasts had all reached the Overlord level.
However, Zheng Dong was curious about Professor Nong Xiu's strength.
Professor Nong Xiu was considered young among the professors, but she was already a grandmotherly figure.
Why would she come along?
Even more surprisingly, Wei Yi also intended to enter the Netherworld Ghost King Realm.
Wei Yi was wearing sportswear and looked at Zheng Dong, saying,
"Zheng Dong, this is Legendary Xiang Ru. Not many people know him, but his strength is definitely among the top three titled legends in Yanhuang.
These two are Professor Nong Xiu and Legendary Shi Qian, whom you've already met.
We will enter the Netherworld Ghost King Realm with you, and we shouldn't encounter too much trouble."
"I hope everything goes smoothly," Zheng Dong said, looking at Shen Jiuxiao and her two daughters, "This auntie is also a titled legend, very strong, and will also be entering with us."
Shen Jiuxiao also nodded slightly at Wei Yi and the others.
She was surprised that Zheng Dong had invited three titled legends.
However, she recognized Wei Yi's identity.
She gave Zheng Dong a deep glance.
What was this kid's background to be able to invite the Saintess of the Fire God Sect for help?
Could these youngsters be from the Fire God Sect?
No, even if they were from the Fire God Sect, they wouldn't receive such treatment!
Shen Jiuxiao couldn't quite figure it out.
But there was no time for her to investigate this matter.
Immediately, Zheng Dong summoned Jing Jing and had Jing Jing transform into a warship to carry everyone away from Rong City.
According to the information obtained about the Netherworld Ghost King Realm last time,
To enter the Netherworld Ghost King Realm, one either had to wait for the entrance to open automatically or actively set up a grand formation to summon it.
The Netherworld Ghost King Realm had not opened yet, so they could only actively set up a grand formation to summon it.
The Netherworld Ghost King Realm was different from other ruin spaces.
Its location was unpredictable and could appear anywhere on Blue Star.
Zheng Dong planned to go to a forbidden area called the Soul-Wandering Valley, located at the border of the Qingqiu Totem Kingdom and the Divine Tree Totem Kingdom, to set up a grand formation to summon the Netherworld Ghost King Realm.
If the entrance to the Netherworld Ghost King Realm opened and a large number of undead creatures poured out, it would not threaten Yanhuang.
The Qingqiu Totem Kingdom and the Divine Tree Totem Kingdom would be the first to suffer.
Of course, Yin Xue's Donghu Kingdom might also be affected.
However, it was also an opportunity to deal with the Qingqiu Totem Kingdom.
Under Zheng Dong's command, Jing Jing transformed into a massive warship.
Jing Jing possessed the Grow/Shrink skill, allowing it to change size.
It was large enough to accommodate Zheng Dong and the others.
After several hours of rapid flight, they flew out of Yanhuang and arrived over the Donghu Totem Kingdom.
Zheng Dong immediately sensed the temple that Yin Xue had built for him.
It seemed that after this period of worship, his statue had formed a peculiar connection with his true self.
He could only understand the specific details after returning from the Netherworld Ghost King Realm.
After flying for a while longer, they reached the Soul-Wandering Valley.
From the air, the Soul-Wandering Valley looked like an empty sack, vast inside, with no mountains.
However, surrounding the Soul-Wandering Valley were mountains thousands of meters high.
This place was originally a prime location for habitation.
But for some unknown reason, it had become a forbidden zone.
A powerful undead creature had even established the Evil Soul Totem Kingdom here in the past.
Unfortunately, the Evil Soul Totem Kingdom was soon destroyed by other surrounding totem kingdoms.
The Soul-Wandering Valley was closer to the Divine Tree Totem Kingdom.
However, neither the Divine Tree Totem Kingdom nor the Qingqiu Totem Kingdom bothered with matters within the Soul-Wandering Valley.
Jing Jing flew directly into the Soul-Wandering Valley and stopped in a flat area.
There were ruins and remnants of buildings, suggesting it was once a palace complex.
The outlines of the palace foundations could still be seen.
After they stopped, the surrounding undead creatures sensed their presence and began to gather.
As Zheng Dong and the others disembarked from the warship transformed by Jing Jing, they saw undead creatures swarming towards them like a tide.
Their target was clearly Zheng Dong and the others.
However, this was exactly what Zheng Dong wanted.
A large number of undead creatures were needed to set up the grand formation.
Otherwise, Zheng Dong would not have had Jing Jing fly so conspicuously into the Soul-Wandering Valley.
On the warship, Zheng Dong had already explained the method of setting up the grand formation to Wei Yi, Shen Jiuxiao, and the others.
Therefore, everyone began to act in an orderly manner.
Shen Jiuxiao still did not summon her pet beasts, but continued to use the bloodline power of the Undying Nether Phoenix.
Her bloodline power was inherited.
However, Shen Xue did not inherit the Undying Nether Phoenix bloodline power; only Shen Bing inherited her Undying Nether Phoenix bloodline power.
Shen Jiuxiao was enveloped in black flames, like a goddess of war, slaughtering all around and suppressing the undead creatures.
Most of the gathered undead creatures were of the General or Monarch level.
They posed no threat to Shen Jiuxiao.
Concurrently, the over two-meter-tall Legendary Xiang Ru also utilized the bloodline power of the Earth Titan.
Countless soils rolled, forming numerous Earth Cages, trapping the undead creatures.
In an instant, hundreds of undead creatures were trapped within the Earth Cages, helpless.
Even though many undead creatures lacked form, they were still unable to escape the Earth Cages.
The Earth Cages were like graves, constantly confining the undead creatures within.
Zheng Dong summoned You You and had You You take action.
He himself continued to observe the others.
To his surprise, Professor Nong Xiu, despite her age, moved with agility, her actions as swift as thunder, quickly controlling dozens of undead creatures.
Professor Nong Xiu had contracted an Overlord-level undead creature, the Soul Devourer.
She rode on the Soul Devourer, moving around with it.
The Soul Devourer resembled a toad.
It was entirely black, enveloped in dense black mist.
It extended its black tongue, and with a gentle flick, it could coil around an undead creature and draw it into its mouth.
However, it did not consume them but rather confined them within its internal space.
Of course, if Professor Nong Xiu had not given prior instructions, the undead creatures coiled into its belly would likely have been devoured.
To set up the grand formation, at least one hundred thousand undead creatures were required.
These undead creatures needed to be sacrificed to have a chance of summoning the Netherworld Ghost King Realm.
As for whether it would be feasible, Zheng Dong could not determine.
Before long, Zheng Dong and the others had captured enough undead creatures.
Then, as required, they proceeded to set up the grand formation.
The method for setting up the grand formation was simple: drawing a special pattern on the ground.
And then driving all the undead creatures onto the pattern.
Zheng Dong also needed to recite a secret incantation left by the Netherworld Ghost King God.
The incantation was the key to communicating with the Netherworld Ghost King Realm.
It was equivalent to the key left by the Netherworld Ghost King God.
Only upon receiving the incantation would the Netherworld Ghost King Realm perceive the sacrifice.
Otherwise, mere sacrifice would be useless.
Soon, Zheng Dong completed the setup of the grand formation.
He then began to recite the obscure and difficult incantation.
The incantation contained many strange pronunciations that others could not replicate.
Only Zheng Dong and Shen Bing and Shen Xue, who had received information from the Netherworld Ghost King God, could produce these sounds.
Zheng Dong felt an inexplicable force compelling him to recite.
He only uttered the first few words before he couldn't stop, continuing until all the incantations were completed.
Subsequently, no anomalies were observed.
It was only after more than ten minutes that violent energy fluctuations appeared in the sky above the Soul-Wandering Valley.
Suddenly, a black vortex appeared.
It swept up the sacrificed undead creatures into the air, drawing them into the Netherworld Ghost King Realm.
Soon, these undead creatures completely vanished, transforming into the purest power, opening the entrance to the Netherworld Ghost King Realm.
Instantly, extraordinary creatures from surrounding totem kingdoms sensed it.
Furthermore, terrifying sounds would occasionally emanate from within the Netherworld Ghost King Realm.
These sounds traveled far, audible even in Yanhuang.
As the Netherworld Ghost King Realm opened, many extraordinary creatures from the surrounding totem kingdoms also gathered.
News also spread like wings to all corners of Blue Star.
Zheng Dong paid no mind to these matters.
He only felt that after the Netherworld Ghost King Realm opened, the Resentful Ghost Ring within his body fluctuated significantly.
It was likely that the Spirit of the Ruins from the Resentful Soul Ruins space had sensed the opening of the Netherworld Ghost King Realm through the Resentful Ghost Ring.
However, the Spirit of the Ruins made no further indication.
It remained within the Resentful Soul Ruins space, attempting to recover its strength.
Unfortunately, it was ineffective.
Since it had last used the power of its divinity, its weakness had become even more pronounced.
It was probably unable to control Zheng Dong and Shen Bing and Shen Xue without the Resentful Ghost Ring.
Zheng Dong was unaware of the Spirit of the Ruins' weakened state.
He had not entered the Resentful Soul Ruins space since.
He observed the entrance to the Netherworld Ghost King Realm.
Unlike all the ruin space entrances he had seen before,
The entrance to the Netherworld Ghost King Realm had a dark gate.
It was unclear what material the gate was made of, but it felt incredibly heavy.
The dark gate opened in mid-air above them, and beyond the gate was a pitch-black world.
Nothing could be seen.
It was impossible to understand the situation within the Netherworld Ghost King Realm.
It seemed they had no choice but to enter.
Zheng Dong frowned and, after consulting with everyone, decided to enter.
The over two-meter-tall Legendary Xiang Ru walked at the forefront.
Following him were Legendary Shi Qian and Professor Nong Xiu.
Zheng Dong and Wei Yi followed closely.
Lastly came Shen Jiuxiao, bringing Shen Bing and Shen Xue.
Upon entering the gate, Zheng Dong's eyes brightened.
The originally pitch-black world disappeared.
Perhaps it was an illusion all along.
A blood-red moon hung in the sky.
The moonlight was bright, casting a blood-red hue over the entire Netherworld Ghost King Realm.
It looked terrifying.
But they were accustomed to it, and it was not a major issue.
However, within the Netherworld Ghost King Realm, it was clearly felt that the death-elemental energy here was more active.
After entering the Netherworld Ghost King Realm, Zheng Dong did not rush to obtain the inheritance of the Netherworld Ghost King God.
Instead, he found a relatively safe place to discuss their next course of action.
The Netherworld Ghost King Realm was vast, even larger than the original Blue Star.
In such a large area, Zheng Dong could only selectively visit a few places where the Netherworld Ghost King God's inheritance might be located.
He, Shen Bing, and Shen Xue had all obtained maps of the Netherworld Ghost King Realm.
They knew that within the Netherworld Ghost King Realm, there were a total of thirteen great halls, eighteen ghost towers, and forty-nine ghost prisons.
Zheng Dong planned to first visit the Barbarian Soul Hall, which was closest to them, to assess the situation.
After some discussion, Wei Yi and the others, as well as Shen Jiuxiao and her two daughters, had no objections.
After all, no one could be certain where the Netherworld Ghost King God's inheritance could be found.
As for the situation in the Barbarian Soul Hall,
Zheng Dong was also unaware.
The information he and Shen Bing and Shen Xue had obtained did not include specific details about the thirteen great halls.
Subsequently, they made their way to the Barbarian Soul Hall.
To avoid unnecessary trouble, everyone concealed their presence, trying their best not to provoke the undead creatures within the Netherworld Ghost King Realm.
However, the more low-key they were, the more undead creatures came to cause trouble.