The beautiful paladin Catherine didn’t believe it, but there was nothing more she could say. After all, this wasn’t her turf, and she couldn’t be as forceful as she was in mainland Europe. Besides, she couldn’t gauge Brian Cooper’s true strength. That handsome little beauty Grace Bennett only glared fiercely at Brian Cooper a few times and didn’t try to argue with him further. As for David Harris, Henry Ford, James Bennett, and Emily Moore, the four of them had even less to say. It was obvious that Brian Cooper was cultivating his skills, and casting a protective spell was perfectly normal. If anything, interrupting his cultivation would have been their fault.

Seeing that Brian Cooper’s expression was grim and he had no intention of keeping guests, the group could only exchange a few meaningless pleasantries before leaving, bored.

However, William Brooks and his little gang hadn’t moved yet. As soon as the others were gone, William Brooks, looking panicked, asked, “Hey, old Cooper, you weren’t just fooling me earlier, right? What kind of spell am I under? Is it really nothing serious? Will I really return to normal soon?”

“Come on, get your little gang out of here first. I have something to discuss with you.” Brian Cooper was much more casual when talking to William Brooks.

After sending away those messy “human-demons,” Brian Cooper rummaged around for a while. With no one else present, he quickly sorted through his pills and found what he considered the most suitable—Qianyuan Bone-Changing Pills. Each dose consisted of two pills, one red and one white, and they were among the most precious elixirs crafted by cultivators. Not only could they greatly enhance one’s power in a short time, but they also had the effect of rejuvenation and complete transformation. After handing them to William Brooks, Brian Cooper instructed him to sit cross-legged and, after taking the pills, to circulate his energy to refine their power.

Half-believing, half-doubting, William Brooks could only obediently follow instructions.

Watching William Brooks being aged so drastically by his own spell, Brian Cooper didn’t feel much guilt. After all, Brian Cooper was a cold-hearted demon by nature. Still, for the sake of their recent interactions, he stretched his muscles and prepared to lend a hand. As Brian Cooper examined his current state, he was quite surprised—his newly cultivated Jade-Skin Immortal Body, achieved in just a few hours, turned out to have some remarkable properties.

In terms of level, Brian Cooper had just stepped onto the path of immortality. Now, as before when he entered the demonic path, he had broken through the boundary between mortal and transcendent, reaching the supreme realm. However, since it had only been a short time, his power was less than a tenth of what it used to be. But this didn’t mean Brian Cooper’s abilities were ten times weaker. This body, tempered by heavenly fire, was even tougher than before, and the Tianpeng Soaring Technique, powered by immortal energy, was even more fluid and natural than when he used demonic energy. It had lost some of its fierce dominance, but gained a certain agility and liveliness. Its power was undiminished. Moreover, Brian Cooper’s years of experience told him that once one achieved the immortal path, the internal energy underwent a qualitative transformation, becoming what was called “immortal energy.” At the same quantity, immortal energy could unleash a hundred times the power of the original true energy. It was like steel compared to wood—a small axe could chop down a towering tree many times its size. That’s the principle: in terms of quality, high-purity, highly concentrated immortal energy was the ultimate power that only those who had reached this level—called “immortals” by humans—could master.

Previously, Brian Cooper had succeeded in cultivation, transforming from a monster to a demon, condensing his energy into demonic energy, which was also a highly concentrated form of power. But since no one had guided him, Brian Cooper had taken many detours and chosen the wrong path, so the “demonic energy” he refined wasn’t concentrated enough. Now, however, his “immortal energy” was as pure as could be, so his current strength was probably about sixty percent of what it used to be—not counting the level he could reach after fusing with the three Heavenly Demon Relics he had obtained.

But Brian Cooper didn’t care much about this change. After all, he had always walked the demonic cultivation path, and now that he had come this far, he didn’t want to change his method. The most important thing was that Brian Cooper knew the operation of the Tianpeng Soaring Technique was unaffected, so there was nothing to worry about. Brian Cooper was the kind of demon who put survival above all else. He had little interest in showing off or fighting for dominance; otherwise, he wouldn’t have quietly cultivated for five thousand years without ever stirring up trouble.

Activating the Tianpeng Soaring Technique, Brian Cooper decided to help his friend. Channeling his immortal power, Brian Cooper prepared to use supreme magic to forcibly reverse William Brooks’s physical aging.

As soon as the immortal energy entered the body, the situation changed completely. With such a powerful force, William Brooks immediately began to transform. His body emitted a series of crisp bone-cracking sounds, his muscles writhed, and cracks appeared on his skin, revealing tender, fresh skin beneath. In less than ten minutes, William Brooks had completed his transformation and regained the appearance of a teenager.

After withdrawing his hand, Brian Cooper still frowned, looking displeased. He knew clearly that he had been tricked.

Seeing Brian Cooper’s expression, William Brooks realized his ruse hadn’t worked. Hoping for leniency, he quickly confessed, “I used a spell to make myself look old. I was indeed affected by your spell just now, but I’m a demon too. A few decades would only make me look seven or eight years older, not that bad. I just wanted to fool those people, that’s all.”

“Fool them? You think they can’t tell you’re a demon? Those people have demon-revealing mirrors. Even I was recognized.” With a reason to let it go, Brian Cooper didn’t intend to pursue it further. He just grumbled a bit and left it at that. He had no interest in other people’s business.