Looking at the middle-aged man, Zhang Ling recalled some past events.
This man was the middle-aged man from the pair of male and female demon refiners he had defeated decades ago when he first came to Wanxiang City, during the competition for the Fire Cloud Island authority.
Decades have passed, and this person's cultivation level doesn't seem to have increased much, while he has already become a Golden Core cultivator.
Foundation Establishment cultivators also enter and exit the wilderness, but mostly only stay on the periphery, and few come to places tens of thousands of miles away from the Immortal City.
"So it's Fellow Daoist Yun," Zhang Ling chuckled and said casually.
"May I know the senior's honorable name? Yun Hu will remember the senior's kindness in saving my life."
Yun Hu looked up at the expert in front of him and suddenly felt that he seemed to have seen this expert somewhere before, but he couldn't remember it for a moment.
"You don't need to mind the rescue; saving you was just a casual act."
Zhang Ling's body flashed with spiritual light, and he was about to use his escape technique to fly away from this place directly.
He had almost recovered from his meditation earlier, and he was in a hurry to fly back to Wanxiang City and didn't want to say anything more to this person.
But this man seemed to see that he was about to leave and hurriedly shouted.
"Senior, please wait, I have a treasure here to give to senior to repay your kindness in saving my life."
Hearing this, Zhang Ling was not in a hurry for a moment. The escape light on his body dissipated, and he turned his head to stare at Yun Hu, looking at him calmly for a while.
Facing his gaze, Yun Hu's face was a little stiff, and at the same time, he felt a powerful aura enveloping the surroundings, making him afraid to breathe.
After a few breaths, Zhang Ling withdrew the power of his divine sense that he had quietly released and asked calmly.
"What do you have?"
Hearing the question, Yun Hu couldn't help but shuddered, but he reacted and squeezed out a smile.
"This... Senior, this junior recently discovered a wisp of heaven and earth spiritual fire in a hidden place. I wonder if Senior is interested."
The words 'heaven and earth spiritual fire' fell into Zhang Ling's ears, and a look of surprise flashed in his eyes.
The so-called heaven and earth spiritual fire refers to the strange fire seeds that are naturally generated between heaven and earth. There are quite a few like Netherworld Ghost Fire, Azure Thunder Flame Fire, etc.
The power of the heaven and earth spiritual fire also varies in strength. The powerful spiritual fire has infinite power to burn the sky and boil the sea. The weak spiritual fire is like the most common earth vein fire, which is also a kind of spiritual fire.
The earth vein fire is only slightly stronger than the innate true fire of Foundation Establishment cultivators. But after entering the Golden Core stage, the Golden Core cultivator's core fire is not comparable to the earth fire.
What's more, the Nascent Soul stage's infant fire is extremely powerful. It is already not weaker than most heaven and earth spiritual fires.
Unless it is a cultivator who is proficient in the fire attribute, they will collect heaven and earth spiritual fires everywhere.
For Zhang Ling, he doesn't even have a fire spiritual root, and he hasn't even learned a few fire attribute spells, so the spiritual fire is not very tempting to him.
But on second thought, if he really got a good spiritual fire, even if he couldn't use it, selling it to the market or auction could also be exchanged for things.
While Zhang Ling's thoughts were racing, Yun Hu's face became uncertain, and he couldn't help but glance at Zhang Ling cautiously.
Then, an expression of surprise appeared on his face, and the more he looked, the more familiar the expert in front of him seemed.
Afterwards, he thought of something and showed a look of shock. Yun Hu remembered a person he had seen in Wanxiang City decades ago, but the person in his memory was at most a Foundation Establishment peak cultivator like him. The one in front of him was a genuine high-level cultivator. He was stunned in place for a moment.
At this time, Zhang Ling also came back to his senses, glanced at this person, and showed a smile.
Seeing this person's expression, it was obvious that he also remembered something.
However, Zhang Ling didn't care, after all, the difference in their cultivation levels was already worlds apart. It was not a big deal for him to be recognized.
"Tell me, what kind of heaven and earth spiritual fire did you discover?" Zhang Ling asked calmly.
"Reporting to Senior, this junior discovered the fire seed of the Xuan Yang Fire, but the location is in the cave of a sixth-order high-level desolate beast."
"It's also a coincidence. This junior and several fellow Daoists have been traveling in the wilderness for more than half a year. We happened to discover the Xuan Yang Fire more than ten days ago, but we also encountered a high-level demon beast. This junior barely managed to escape to this place with several treasures. All the fellow Daoists who traveled with me also died on the spot."
This person didn't waste any time and directly told the story of discovering the spiritual fire in general.
Zhang Ling frowned slightly, but he was thinking about the Xuan Yang Fire in his heart. He had never heard of it, and he had not seen any related records in any classics. However, there are many types of heaven and earth spiritual fire, so he naturally couldn't have heard of all of them.
Yun Hu looked at Zhang Ling's expression and seemed to realize something. He smiled awkwardly, patted his storage bag, took out a jade slip, and handed it over.
"Senior, please look at this jade slip, which contains relevant information about the Xuan Yang Fire."
Zhang Ling nodded silently, waved his hand, and the jade slip came into his hand. He stretched out a finger and pointed on it, releasing his divine sense to invade it and began to explore the information inside.
After a moment, Zhang Ling withdrew his divine sense and had a general understanding of the Xuan Yang Fire.
The so-called Xuan Yang Fire is a Yang Fiend Fire spiritual fire formed in the land of the Three Yangs, also known as the Three Yang Spiritual Fire.
The above also records information about other types of flames, such as Six Yang Heavenly Fire and Nine Yang Divine Fire. The power is much stronger than Xuan Yang Fire. It's just that the conditions for the formation of these types of flames are more stringent.
In Zhang Ling's understanding, this Xuan Yang Fire is actually a heaven and earth true fire formed by the condensation of the fire fiend energy in the land of the Three Yangs.
The jade slip records that the power of the Xuan Yang Fire is several times stronger than the core fire of a Golden Core cultivator. If it really has this kind of power, it can be considered a good spiritual fire.
It's just... Zhang Ling thought in his mind, then he glanced at Yun Hu standing next to him, tossed the jade slip in his hand, and said with a smile that was not a smile.
"You said earlier that you accidentally found the Xuan Yang Fire, but you seem to know this spiritual fire very well. Could it be that Fellow Daoist Yun has the ability to foresee the future and is sure that he can encounter this kind of spiritual fire while traveling in the wilderness."
"Ah, this."
Yun Hu's face stiffened, and he began to stammer.
Seeing this, Zhang Ling's eyes turned cold. Could it be that this person intended to deceive him? With a thought, he saw a black light flash from a bag on his waist, and a gust of Yin wind rolled out from it.
In the Yin wind, a humanoid creature more than a zhang tall landed heavily on the ground with a 'dong' sound.
Yun Hu's face changed drastically in an instant, and he took a few steps back, hurriedly saying, "Senior, please stop, this junior did not intend to hide anything."
Zhang Ling did not stop. With a thought, the Corpse Bear roared and came in front of Yun Hu in a flash.
This person was already injured after being besieged by two two-headed vultures, and the spiritual power in his body was running out.
Facing the Corpse Bear, he only had time to cover himself with a layer of protective spiritual light.
The Corpse Bear was refined by the secret method in the Fiend Corpse Art, and its body was fused with strange vines. Its strength has far surpassed that of a Foundation Establishment cultivator. Although it is much weaker than a Golden Core cultivator, it is naturally more than enough to deal with an injured Foundation Establishment peak cultivator.
After the Corpse Bear came in front of Yun Hu, it opened its mouth and sprayed out a ball of gray-white corpse gas, instantly trapping him inside.
There was a crackling sound, like clear water dripping into a hot oil pan.