Seventy years old is the age to take risks!

When Jiang Yuan returned to his residence, it was already completely dark.

Shuang'er stood at the door with a lantern in her hand. When she saw Jiang Yuan's figure in the distance, her eyes lit up and she quickly walked over to greet him.

"Master, you're finally back! I've reheated your dinner three times already."

"No need, I'm not hungry."

Jiang Yuan waved his hand and walked straight to the alchemy room. "No one is allowed to disturb me tonight. We can talk about it tomorrow."

Shuang'er opened her mouth, wanting to say something, but seeing Jiang Yuan's solemn expression, she swallowed her words back.

The door to the alchemy room slammed shut.

Jiang Yuan placed the demon beast's core on the table, lit the oil lamp, and examined it carefully by the dim light.

This dark red crystal is slightly smaller than a fist, smooth all over, like a polished gemstone. A faint, swirling light emanates from within, as if some living thing is moving inside.

"Just what is the origin of this demonic beast's core...?"

Jiang Yuan frowned slightly.

Although this thing is extremely rare and can be used for medicine, it is more of a collectible item.

He took the picture just to see if he could use it for alchemy.

Earlier at the auction house, that man in black kept bidding against him for this item, and then came back to cause trouble after they left. If he hadn't had enough trump cards, he probably wouldn't have been able to get away so easily tonight.

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Jiang Yuan placed the core in his palm and slowly infused it with a wisp of true energy.

hum-

The core trembled slightly, a faint red glow appeared on the surface, and the temperature suddenly rose.

He was startled and quickly withdrew his inner energy.

"Is there a response?"

Jiang Yuan stared at the core, and a bold idea suddenly popped into his mind.

Since this stuff can be used in medicine and alchemy, what would happen if he just threw it into the alchemy furnace to refine it?

He is always decisive in his actions; he does what he thinks of.

Jiang Yuan slapped the top of the alchemy furnace with one hand, lifting the lid and throwing in the demon beast's core. He then activated his true energy to ignite the furnace's fire.

As the temperature inside the alchemy furnace rose rapidly, the demon beast's core spun inside, making a "crackling" sound, as if it were about to crack open at any moment.

Jiang Yuan was completely focused, constantly urging his true energy to maintain the fire, and he was extremely nervous.

Damn, this is a treasure that cost nine hundred spirit stones to buy.

If it's all gone like this, we'll lose a lot of money.

However, the monster's core was much more solid than he had imagined. It took a full half hour for the cracks on its surface to gradually widen, and a scorching heat seeped out from the cracks.

The aura was incredibly intense, and even the alchemy furnace began to glow slightly red.

"Something is definitely strange."

Jiang Yuan was secretly delighted and increased the output of his true energy.

He was afraid that the core of this demon beast would crack easily. Its sturdiness meant that there must be something extraordinary inside!

Another hour passed.

Sweat beaded on Jiang Yuan's forehead; he had exhausted most of his inner energy and was on the verge of collapse.

Just then—

"Snap!"

With a crisp crack, the monster's core shattered completely.

A dark purple flame suddenly burst forth from the core, its color deep and eerie, carrying an overwhelming scorching heat.

The flames seemed to possess a spirit, swirling once in the furnace before suddenly lunging towards Jiang Yuan!

Jiang Yuan instinctively tried to dodge, but the fire spread too fast and was in front of him in the blink of an eye.

His heart tightened, and he instinctively activated his Vajra Indestructible Technique.

But I've already used it today.

The dark purple flames pierced through his protective aura and went straight into his dantian!

"hiss--"

Jiang Yuan groaned, feeling a sharp pain coming from his lower abdomen, as if something was burning inside him.

He sat down cross-legged and used all his strength to activate the Everlasting Spring Technique, trying to suppress the flame.

Each time it passed through a meridian, it brought a burning sensation.

Jiang Yuan gritted his teeth, veins bulging on his forehead.

He didn't know what kind of flame it was, but he had a feeling that if he could tame it, it would be of great use to him.

If he can pull through, the benefits will be immeasurable.

Jiang Yuan took a deep breath and stopped trying to suppress the flame. Instead, he guided it to circulate in his meridians. The true energy of the Changchun Gong surged out like a tide, enveloping the flame and refining and fusing it little by little.

This process is extremely painful, like swallowing a ball of fire and slowly digesting it.

But Jiang Yuan persevered.

Meanwhile, outside the Jiang residence.

"Master Jiang! Master Jiang! Are you there?"

Ding Wu was sent by Zhu Hu to invite Jiang Yuan to a banquet. As soon as he arrived at the entrance of Jiang's residence, he saw a beam of fire rising from the direction of the alchemy room. The heat wave hit him and could be felt even from half a street away.

This startled Ding Wu, who stood at the door, too afraid to go in.

He called out several times but received no response. Not daring to force his way in, he hesitated for a long time before finally slinking back to report.

Inside the alchemy room, Jiang Yuan was completely unaware of everything happening outside.

He was currently immersed in a mysterious state.

The dark purple flame had gradually merged with his true energy, from its initial violent resistance to its current gentle flow, like a wild horse that had been tamed.

He could clearly feel that the true energy within his body had gained a scorching attribute.

Even when merely releasing his inner energy, it carried an intense, fiery aura...

...

The next day.

Jiang Yuan opened his eyes, and a dark purple flame seemed to flash deep within them.

"It's done!"

Jiang Yuan's face lit up with joy.

Despite not having slept all night, he didn't feel tired at all; instead, he felt a sense of exhilaration, as if he had been reborn.

The demonic fire entering his body not only added a layer of fire attribute to his true energy, but also tempered his meridians, making them more resilient and unobstructed than before. This was more effective than taking any amount of Marrow Cleansing Pills.

Given his solidified meridians, the Meridian Opening Realm would have been the most difficult path for him to traverse.

But after being tempered by the demonic fire, this path will become much smoother!

"Could this be... the legendary demonic fire?"

Jiang Yuan opened his palm, and with a thought, a cluster of dark purple flames danced in his hand, as if possessing a spirit like a heart.

He finally understood the true value of that monster core.

This is no ordinary demon beast core, but a precious treasure that seals the primordial fire of a demon beast.

After most demonic beasts die, their primordial fire goes out. Only in extremely rare cases will a trace of primordial fire remain in the core of a demonic beast, which is called demonic fire.

Demonic fire can aid in combat and can also be used for alchemy.

The value of this thing is immeasurable.

Alchemists, in particular, may spend their entire lives searching for a suitable demonic fire.

If people knew that there was demonic fire inside this core, let alone eight hundred spirit stones, even eight thousand spirit stones would be fought over.

No wonder that woman insisted on competing with him; did she already know all along?

I wonder what level of demonic fire this is?

Jiang Yuan pulled himself together, stood up, changed his clothes, and went out of the room.

By this time, it was already broad daylight.

Shuang'er stood timidly in the courtyard, holding a bowl of porridge in her hands. When she saw Jiang Yuan come out, she cautiously approached him.

"Sir...are you alright?"

"What's wrong?"

"Last night, your alchemy room was ablaze with flames; I was so frightened that I didn't dare go near it."

Shuang'er shrank her neck. "And that Deacon Ding came too. He stood at the door and called for you for a long time, but left when he didn't hear anything."

"Ding Wu?" Jiang Yuan raised an eyebrow.

"Yes, he said that Master Zhu invited you to come over."

Jiang Yuan nodded, took the bowl of porridge, drank a couple of mouthfuls, and said, "Hmm, I'll pack up and head over."