“Second-grade demon cores are three taels of silver each, third-grade demon cores are five taels each, fourth-grade demon cores are ten taels each, fifth-grade demon cores are twenty taels each, and sixth-grade demon cores are forty taels each, for a total of seventy-eight taels of silver.”

　　Logan Clark nodded, took out eight banknotes of ten taels each, and handed them over.

　　In his eyes, these five demon cores also emitted halos of varying brightness, and the strength classification of fierce beasts corresponded to the twelve postnatal levels of human martial artists. Thus, a second-grade demon core was equivalent to the strength of a second-level postnatal martial artist, and a sixth-grade demon core was equivalent to the strength of a sixth-level postnatal martial artist.

　　With such a direct comparison, Logan Clark could easily deduce the strength of everyone in this pharmacy: seven at postnatal level six, fourteen at postnatal level five...

　　Go home immediately, refine the demon cores, and see just how miraculous this Chaos Furnace really is!

　　Chapter 3: Consecutive Breakthroughs

　　Logan Clark returned to the Lin family, sat cross-legged in his own room, and took out a second-grade demon core.

　　“Now or never—let’s see if I’m a dragon or a worm!”

　　The Chaos Furnace began to operate, and the purple cauldron in Logan Clark’s sea of consciousness suddenly trembled, rising and falling. A powerful suction instantly emanated from Logan Clark’s palm, forcibly extracting the essence from the demon core.

　　The power within a demon core normally could not be directly absorbed by a martial artist; it had to be refined into a pill before it could be used by humans! But this rule did not apply to Logan Clark, or rather, to the Chaos Furnace!

　　Vast power surged continuously from the demon core into Logan Clark’s body, where it was refined by the Chiyang Technique into his own fire-attribute true essence, strengthening the core in his dantian.

　　Mid-stage of postnatal level two, late-stage of postnatal level two!

　　Logan Clark was startled awake by a strong sense of hunger. He suddenly opened his eyes to find the sun shining brightly, not knowing how long he had been meditating this time.

　　“Amazing! Absolutely amazing!”

　　“My cultivation actually leaped from the early stage of postnatal level two straight to the late stage, and I’m not far from level three!”

　　“I absolutely cannot let anyone know the secret of the Chaos Furnace and the purple cauldron in my sea of consciousness. This power is too heaven-defying—anyone would covet it. With my current strength, I’m not yet able to protect this treasure. I must keep this secret, or disaster will surely follow!”

　　Logan Clark was not blinded by joy; instead, he calmly began to think things through.

　　“The Grand Elder’s faction has at least experts at postnatal level eleven. Before Grandpa comes out of seclusion, I must endure. Otherwise, not only will I fail to avenge Brian Lewis, but I’ll also get myself killed!”

　　“But, Brian Lewis, don’t worry—the day I avenge you is not far off!”

　　Logan Clark went to the kitchen to get something to eat, and only then did he realize that he had actually cultivated for two days and two nights straight!

　　“No wonder I’m so hungry!” Logan Clark wolfed down his food, quickly clearing his plate. “Back to training—I’ve already fallen too far behind Dylan Clark and the others. I have to catch up! Besides, if Grandpa comes out of seclusion and sees that I’ve made progress, he’ll definitely be happy!”

　　Logan Clark sat cross-legged, picked up that second-grade demon core, and continued cultivating.

　　After two days and nights of refining, there was little essence left in the second-grade demon core. It barely pushed his cultivation to the peak of postnatal level two before turning into a pile of fragments, drifting away in the air.

　　“Again!”

　　Logan Clark steeled himself and directly took out a sixth-grade demon core. In comparison, the massive energy within this sixth-grade demon core was nearly a hundred times that of a second-grade one! Breaking through to the next level would require a huge accumulation of true essence, but a single sixth-grade demon core was definitely enough!

　　Boom!

　　As soon as Logan Clark activated the Chaos Furnace, a torrent of violent energy burst forth from the sixth-grade demon core, equivalent to a full-force strike from a postnatal level six expert. Logan Clark’s pores immediately oozed blood, and he spat out a mouthful of fresh blood!

　　If the purple cauldron in his sea of consciousness hadn’t trembled and absorbed most of the energy, Logan Clark’s bones and flesh would have been shattered!

　　“Greed knows no bounds!” Logan Clark shook his head with a wry smile. “A sixth-grade demon core isn’t a tonic for me right now—it’s poison! It’s not that the Chaos Furnace isn’t up to the task, it’s that my foundation is just too weak!”

　　He picked up a third-grade demon core and carefully activated the Chaos Furnace. If he still couldn’t refine this much energy, he’d have to go buy more second-grade demon cores.

　　Buzz!

　　The purple cauldron in his sea of consciousness trembled, the Chaos Furnace operated, and vast energy surged continuously into Logan Clark’s body. Although this was twice as much as a second-grade demon core, it was still within Logan Clark’s capacity to bear.

　　Starting from the peak of postnatal level two, he kept accumulating, accumulating, accumulating—like a surging flood, and once it reached a certain point, it could break through the dam!

　　Almost there!

　　Logan Clark said to himself. His core was now completely filled with true essence and could hold no more, or else it would burst from the pressure!

　　Break through! Break through! Break through!

　　Bang!

　　After long accumulation, the breakthrough came naturally!

　　His whole body suddenly relaxed, and the core in Logan Clark’s dantian suddenly expanded, at least doubling in size! This meant that Logan Clark could now hold twice as much true essence as before, and his strength had doubled as well!

　　Postnatal level three!