The atmosphere in the small compartment of the ancestral house was extremely oppressive!

Luo Qi and the young man from the Blood Letter Army were both drenched in cold sweat, their eyes fixed on a corpse on the ground, their faces full of disbelief!

The corpse was barely human-shaped, covered in blood as if it had been fished out from a Blood Pool!

Moreover, this assassin's veins and arteries were almost entirely ruptured, making the body look gruesome beyond words!

"This is even more potent than K-03 poison!" Luo Qi felt a tingling sensation on his scalp!

Death wasn't terrifying, but to die miserably like this assassin was truly horrifying!

Ye Feng nodded, knowing he had only fed this assassin a blood crystal the size of a thumbnail. If he had given more, the assassin's body would have exploded, dying in a more horrific manner like that Australian.

Thinking of this, Ye Feng carefully examined the corpse, then sliced off a grain-sized piece of the blood crystal and fed it to another unconscious assassin!

As expected, this assassin also failed to escape his fate, dying with ruptured veins and arteries all over his body!

After that, Ye Feng reduced the amount of blood crystal, but still, no assassin survived!

"Could it be that this blood crystal cannot be absorbed by humans?"

Ye Feng frowned. Only their leader, Bill, remained unconscious among the assassins, making Ye Feng extra cautious in conducting this human experiment!

Thinking this, Ye Feng examined the corpses of the assassins, his frown deepening!

The blood in these corpses was scalding hot, as if the blood crystal could rapidly integrate into human blood, causing it to mutate!

This situation was extremely peculiar. Ye Feng could assert that even biochemical weapons were weak compared to this Energy Source Stone!

Considering this, Ye Feng tried circulating the strange energy within his body, then controlled a tiny amount to merge with the blood crystal!

When he found no resistance merging it in, Ye Feng's eyes slightly narrowed!

Glancing at the unconscious Bill, Ye Feng pondered briefly, then extended his finger and tapped several vital acupuncture points on Bill's body!

Ye Feng's movements were incredibly slow, each tap infusing some of his strange energy into Bill's body!

This was an experiment. If it failed, he would have to think of another solution!

An hour later, Ye Feng finally withdrew his finger, but his forehead was covered in layers of sweat, indicating the tremendous effort it took!

"Success or not, it all hinges on this!"

Ye Feng's eyes shone brightly. If it succeeded, it would be a tremendous advantage for him, not only quickly enhancing his subordinates' strength but potentially having even greater benefits!

Improving strength wasn't an overnight task. His Blood Letter Army had endured months of life-and-death trials, with nine out of ten members dying to form this force!

Moreover, most of these soldiers' skills were comparable to ordinary first-class experts, but in life-and-death combat, they still fell short.

Furthermore, it was increasingly difficult for the Blood Letter Army to enhance their strength further, with many members' physical capabilities already reaching their limits.

If this Energy Source Stone could indeed enhance the human body, he could ramp up his training efforts, creating an incredibly formidable force of demonic guards!

The Blood Family was always a looming mountain in Ye Feng's mind. He vaguely felt he only knew the tip of the iceberg about the Blood Family. Only by rapidly expanding his strength could he handle future crises!

This was the reason Ye Feng was so eager to cultivate his own forces!

Thinking this, Ye Feng glanced at Bill on the ground, then sliced off a needle-sized crystal from the Energy Source Stone, placing it in Bill's mouth!

Though this crystal was tiny, it had previously killed an assassin, demonstrating its formidable power!

After feeding the crystal, Ye Feng and Luo Qi waited quietly!

Five minutes later, Bill's body finally reacted!

The veins and arteries on his face, neck, and body swelled, as if he was enduring indescribable pain. His body then convulsed uncontrollably like an epileptic seizure!

However, Ye Feng was relieved to see that Bill's convulsions weren't severe. After just a minute, they ceased, and his swollen veins and arteries slowly receded, making him look like a normal person again!

In addition, Ye Feng could clearly see that Bill's body seemed stronger, with more defined muscle lines, making him appear like the most perfect human form!

Whoosh!

At this moment, Bill's light blue eyes suddenly opened. Sensing someone nearby watching him, he jumped up instinctively and threw a punch!

"Damn it!!!"

Luo Qi's expression changed. He immediately swung his leg in a Whip Kick, sending Bill flying before his punch could land!

Bam!

Bill's strong body crashed into the wall, but as soon as he hit the ground, he sprang up like an arrow, launching a frenzied attack at Luo Qi!

Luo Qi's expression changed once more. Previously, a single kick could injure Bill, but now it was like scratching an itch, having no effect at all!

Feeling Bill's fierce onslaught, Luo Qi's face slightly changed, and he immediately engaged!

Bam bam bam!

The two desperately fought, their terrifying power making one's skin crawl!

Previously, with Luo Qi's super first-class strength, he could easily handle Bill, but now they were evenly matched, shocking Luo Qi to the core!

From the side, Ye Feng's eyes locked onto Bill, his gaze blazing with intensity:

"It worked! It actually worked!"

Even Ye Feng hadn't anticipated that the strange energy within him would work on the Energy Source Stone, and Bill's enhanced state suggested it was highly effective!

With this realization, Ye Feng's eyes gleamed intensely. Although he currently only had a preliminary understanding of the Energy Source Stone, he believed continuous experimentation would reveal its secrets!

Watching Bill and Luo Qi fighting to a standstill, a cold smile appeared on Ye Feng's lips. He then moved swiftly to Bill's side, catching him off guard, and delivered a powerful punch to his temple!

If you find any errors ( broken links, non-standard content, etc.. ), Please let us know < report chapter > so we can fix it as soon as possible.