Silvery flames streaked across the sky like a dazzling meteor. However, both Huo Yuhao and Yao Lao possessed their own unique flames. The Profound Ice Cold Flame and the Bone Spirit Cold Fire instantly detected the presence of a similar kind of flame.
"Chirp chirp!"
The little fire spirit, Xiao Han, appeared on Huo Yuhao's shoulder, emitting soft cries. It was clearly urging Huo Yuhao to quickly seek out that unusual fire.
Yao Lao, meanwhile, was curiously observing the undead demiplane, clearly astonished by Electrolux's ability to create such a space.
"Did you create this entire space by yourself?"
"That's right. I've created several such small spaces in the past, and this is the most complete one," Electrolux said in the Sea of Spirit.
"This space is filled with undead creatures I left here. After thousands of years of reproduction and growth, I have no idea how many there are or how powerful they've become. However, now that I'm awake, with my spiritual imprint present, the undead creatures inside won't attack us."
"In our world, only the most powerful beings at the pinnacle can create a space and form a small world," Elder Yao said softly. "But I can sense that the laws of this space seem incomplete?"
"Yes, in this world, there are many planes, each one a planet and a primary world. Some share our space, while others don't. Using my own power, I created some relatively small worlds, which I call demiplanes."
"Of course, the reason they are called demiplanes is precisely because their laws are not complete, as they are too small. Creating a complete world as you described is something even I couldn't do in the past."
"I initially created this undead demiplane to study a certain undead magic, to perfect it. Although undead magic is powerful, it has a major drawback: casting it requires using one's own life force. I performed a special magical ritual to transform myself into a half-human, half-undead lich, but even then, using overly powerful undead magic gradually led my body towards decay."
Yao Lao nodded. The path of cultivation is similar regardless of the method, and although he didn't fully understand what magic was, he could grasp what Electrolux was saying.
"You both must have noticed the firelight streaking across the sky earlier. That's the flame I mentioned which exists in this demiplane. But before seeking it out, we must withdraw our spiritual power, or soul power, because this flame has a peculiar attribute: it can burn and devour spiritual energy."
"I found that its flames cannot burn physical entities but can destroy the souls of living beings, refining them into pure spiritual energy to consume. Any living being would find it extremely difficult to resist its soul-devouring flames. If we were to be touched by it, even we would be in big trouble."
Hearing Electrolux's words, Huo Yuhao and Yao Lao were both shocked and quickly retracted their spiritual probes. The attributes of heavenly flames vary greatly, and if this flame specifically burns spiritual power, it indeed counters their abilities significantly.
In the Sea of Consciousness, Electrolux taught Huo Yuhao an incantation, which would serve as a key to re-enter the undead demiplane in the future. When Huo Yuhao recited the incantation in front of the key gate, it transformed into a gray light and fell into his palm.
"If we can't use spiritual detection, how will I find the source of this silver flame?" Huo Yuhao said, somewhat frustrated.
Like the Profound Ice Cold Flame hidden in the underground Mysterious Ice Cave, most heavenly treasures like these flames choose a secluded place to conceal themselves, a natural instinct for self-preservation.
Although Huo Yuhao saw where the silver light flew, he couldn't pinpoint the exact location.
At this moment, the little fire spirit Xiao Han chirped twice more, lifting its left front paw to point to itself and then in a certain direction.
"Oh? You know where it is now?" Huo Yuhao's eyes lit up.
Xiao Han nodded seriously, making a few gestures indicating that the flame was more powerful than itself, urging Huo Yuhao to be very cautious.
"Alright, I'll rely on you to lead the way, Xiao Han."
Guided by Xiao Han, Huo Yuhao followed a specific path and soon climbed a hill. Reaching the top, they were met with a chilling sight.
Behind the hill, a vast number of skeletons uniformly turned their heads. In their eye sockets, crimson soul flames flickered, numbering in the hundreds.
Hundreds of skeletons turning their heads simultaneously, with soul flames flickering intensely, creating a faint halo in the air—what a shocking scene!
However, Huo Yuhao's mental fortitude was exceptional, so he wasn't overly alarmed.
Electrolux released a grayish stream of air, forming a thin membrane around his body. Sensing Electrolux's aura, the skeletons scrambled to avoid him, opening a wide path through the pile of bones for Huo Yuhao.
"The presence of any life is highly attractive to undead creatures. If they can obtain your flesh and blood, it will significantly promote their evolution. Any undead creature can reach the top of the food chain through continuous evolution. In this undead demiplane, I left thirteen types of undead creatures, with these common skeletons being the weakest. They only have basic instincts and no self-awareness," Electrolux explained.
Continuing forward, they came upon a low hill. Guided by Xiao Han, Huo Yuhao found a deep cave on the side of the hill.
Entering the cave, Huo Yuhao, to avoid alerting the silver flame, chose to use soul power to ignite a flame for illumination instead of using his heavenly flame. By the yellowish light of the soul power flame, he could see the vast space inside the cave, much larger than a football field. The cave expanded rapidly in the dim light, seemingly endless.
Thirty meters above, grayish-brown stone walls were filled with finger-sized round holes. Dense, eerie air swirled within these holes.
"Roar..."
A slow yet somewhat ferocious growl echoed, and Huo Yuhao suddenly saw countless undead creatures crawling out from the ground. These undead creatures didn't seem afraid of Electrolux's spiritual aura on Huo Yuhao's body and rushed towards him.