"Daoist Yang, where did they go?" Ni Zhennan looked at the empty room and then at Yang Hong, with an expression of surprise.
"Somewhere safe," Yang Hong replied with a smile, without further explanation.
"Here, these are three stage seven early stage demon cores. Quickly put them into the formation. The formation's light barrier is about to be broken."
Saying that, Yang Hong handed over the three stage seven Demon Lord cores.
"Oh, right! Put in the demon cores first."
Ni Zhennan, remembering the current situation, hurriedly fumbled to take the three demon cores, then formed a hand seal. A white light flashed on the ground around his feet, and three stone pillars carved with complex patterns slowly rose from the flat ground.
When the stone pillars rose three feet high, they stopped. Ni Zhennan placed the three demon cores onto them, then formed another hand seal and lowered the pillars.
"This formation control center is quite interesting." Seeing the stone pillars disappear, leaving the ground appearing as if nothing had happened, Yang Hong became even more intrigued and immediately sent his divine sense to probe.
However, this formation control center was quite miraculous. Yang Hong's powerful divine sense could not penetrate the bluestone ground. It seemed to be protected by a formation that isolated divine sense probes, and this seemingly ordinary bluestone ground was not simple at all.
"Daoist Yang, this formation control center was designed and built thousands of years ago by a stage seven integration realm senior. It not only isolates divine sense probes but can also withstand stage seven attacks for three hours," Ni Zhennan said frankly, seemingly sensing Yang Hong's divine sense probe.
"Is that so? It is indeed magical." Yang Hong knew Ni Zhennan wanted him to stop probing randomly, but Yang Hong didn't care. Since the underground formation core was inaccessible, the grand hall should be observable, right? He directly released his divine sense and began to carefully examine the grand hall.
For now, there was no need to observe outside Guangyou Island. With the three stage seven demon cores as energy, the island's protective formation had completely stabilized. Furthermore, the demon races' spell condensation speed had slowed down. Yang Hong naturally wanted to take this opportunity to thoroughly study the grand hall.
Soon, Yang Hong discovered that this grand hall was also unfathomably profound. Firstly, the bluestone on the four walls of the grand hall were all specially refined third-grade magical artifacts. What looked like ordinary bluestone was actually a magical artifact refined from stone materials using a special method.
Yang Hong suddenly looked at Pei Desheng beside him, remembering that Pei Desheng was a fifth-grade artifact refiner.
"Daoist Pei, do you know how to refine this bluestone for the grand hall?"
"Yes, I'll record the refining method and give it to you, Daoist." Hearing that Yang Hong was only asking about the refining method for the bluestone in the grand hall, Pei Desheng answered without hesitation, even handing over a copy of the refining method. Yang Hong was momentarily stunned.
"Thank you." Yang Hong accepted it without refusal and began to read it on the spot. After a moment of silence, Yang Hong opened his eyes. It was a rather complex artifact refining technique that he could not learn for the time being and did not have the time to learn. However, he could pass it down when he returned to Rendao Island and cultivate some artifact refiners.
"Daoist Pei, this artifact refining method is excellent. I would like to ask, can your artifact refining techniques be sold to me? I can purchase it with spirit stones or demon cores."
"Really? Do you have stage seven demon cores?" Hearing Yang Hong's proposal, Pei Desheng asked excitedly. He had been staring at the attacks from the sky, listening to the rumbling sounds, and was extremely nervous. Hearing that Yang Hong was willing to offer demon cores in exchange for his artifact refining inheritance, he immediately inquired about stage seven demon cores. As long as they had enough stage seven demon cores, Guangyou Island could remain steadfast.
"Yes, stage seven intermediate." Yang Hong took out the last unrevealed stage seven intermediate demon core he possessed.
"Good, good! I'll record it immediately." Pei Desheng was thrilled and, without a word, took out several blank jade slips and began recording.
Ni Zhennan, seeing this scene, had a thought. He looked at Yang Hong and said, "Daoist Yang, I have a fifth-grade formation inheritance, as well as the protective formation of Guangyou Island. Can I trade them with you?"
"Yes." Hearing about the formation inheritance, Yang Hong was even more eager. If there was a human fifth-grade formation master, his formation path level would surely grow rapidly. However, he would not be satisfied with just the formation inheritance.
"Daoist Ni, I have one last stage seven late-stage demon core. It would be a loss for me to trade it for just one formation inheritance."
Hearing Yang Hong's words, Ni Zhennan's expression immediately darkened, and he retorted, "Daoist Yang, knowledge is priceless."
"But your lives have a price." Yang Hong glanced at Ni Zhennan and then pointed to the sky, where the rumbling sounds were still ongoing. This time, Ni Zhennan's face turned red, and he dared not retort. He meekly asked, "Then, Daoist, what is your proposal?"
"Give me all of your immortal cultivation hundred arts inheritances. I will also give you ten stage six demon cores and one million spirit stones. Don't bargain. If you don't agree, you are all dead."
"This..." Ni Zhennan hesitated. But he could not refute. Although he did not have Yang Hong's powerful divine sense that could scan a radius of 3200 li, with the help of the formation, he could still see a radius of over a thousand li. The number of demons gathered outside Guangyou Island had already reached hundreds of thousands, and the monstrous beasts numbered in the hundreds of millions. Those demons were not attacking Guangyou Island because of Yang Hong; it was a premeditated action, and they had been gathering for a long time. Their goal might be to annihilate the entire Guangyou Island. If they continued to besiege it, within a month at most, Guangyou Island would still be breached.
"Alright, I agree. However, I hope you can take action and help us resolve this crisis."
"Heh heh." Yang Hong looked at Ni Zhennan mockingly for a while before saying, "No problem, I will resolve it for you now. However, when I leave, I want to take some of Guangyou Island's population with me."
"Good!" Ni Zhennan would not stop Yang Hong from taking some people with him. He could not stop Yang Hong now anyway!
"Watch closely. Earth Evasion!" Yang Hong walked out of the formation control hall, and with an Earth Evasion technique, he disappeared. When he reappeared, he was already over 200 li off the coast of Guangyou Island.
"Focused Fist!" As soon as he appeared, he unleashed a powerful punch filled with heroic and fearless fist intent.
"Bang! Bang! Bang!" After a series of popping explosions, more than half of the 101 demons present died. The remaining less than ten were also severely injured due to the backlash of their combined spells.
"Collect!" Yang Hong gave a clear shout. All the demons' demon cores and nascent souls, as well as those that did not die, were instantly brought back by Yang Hong's recoiling fist intent. He even maintained the posture of his punch while completing the cleanup. Everything, including tons of seawater, was collected into his scale space.
"Fortunately, I had a premonition that there would be a battle, so I took out those Demon Lords I had incapacitated. Now this scale space can be used as a weapon again." Touching the scales on the back of his hand, Yang Hong sighed, then disappeared again.
For the next hour, Yang Hong continuously launched surprise attacks on the demons using the Water Evasion technique. As long as he avoided the stage six demon kings, he would hit them with one punch and then move to another location. Until...