Unlimited Upgrade System

Chen Feng's eyes were scrutinizing Zhou Chengwu as he interrogated him.    

However, at this moment, Zhou Chengwu seemed to have recalled something terrible. There was a hint of fear in his eyes!    

He, who wasn't too frightened in front of Chen Feng, was actually trembling in fear at this moment!    

Chen Feng looked at Zhou Chengwu's performance and instantly confirmed how terrifying the background or strength of this large organization was!    

"Speak!"    

Chen Feng berated.    

"Yes. . . Three years ago, when I was traveling in the Long Creek Mountain Range, I accidentally bumped into a cave. This cave was filled with countless terrifying things. Those things were all stored in a jar filled with green liquid. Some of the severed heads could even move eyeballs!"    

Everyone looked at Zhou Chengwu in shock when they heard his words. Zhen Yun could not believe that such a strange thing could happen. A head in a bottle could actually move eyeballs. This was too unbelievable!    

However, at this moment, Chen Feng's expression turned serious, and his eyes narrowed!    

Biochemical petri dish!    

When Chen Feng heard Zhou Chengwu's words, his heart immediately shook. What Zhou Chengwu said was definitely true, but that Long Stream Mountain Range was merely a small mountain range. Compared to the other mountain ranges around the Imperial City, it was extremely tiny. Even the Demonic Beast at most could only be a grade seven Demonic Beast that moved over from another mountain range!    

Moreover, the natural treasures in this mountain range could be said to be extremely rare. The geological soil was not suitable for the growth of natural treasures, so ordinary Cultivators would not go there. As a result, the mountain range was sparsely populated, with only a few little beasts living there.    

However, no one would have thought that this Long Creek Mountain Range had already been used as a stronghold. Even the petri dish was set up in the Long Creek Mountain Range!    

"Long Creek Mountain Range? Is it the closest mountain range to the Imperial City?" Zhen Yun said with a frown.    

A strange look flashed across Chen Feng's eyes when he heard Zhen Yun's words. The Long Stream Mountain Range was one of the mountain ranges that was closest to the Imperial City!    

If the organization behind the scenes used all their biochemical technology to create biochemical modifiers, there might be a great disaster in the Imperial City!    

However, he did not know what kind of expression the Flame Dragon Emperor would have if he knew about this matter!    

The corner of Chen Feng's mouth raised slightly, but he was only thinking about what the Flame Dragon Emperor's Imperial City had to do with him. Furthermore, the Flame Dragon Emperor could possibly be the Flame Dragon Imperial Family in his dream. He wouldn't be kind enough to tell the Flame Dragon Emperor!    

Furthermore, such a terrifying thing had appeared under the feet of the Flame Dragon Emperor. If the Flame Dragon Emperor didn't know about it, Chen Feng wouldn't believe it at all!    

The corner of Chen Feng's mouth raised slightly, and his eyes flickered with a bright light. Perhaps, the Flame Dragon Emperor had secretly colluded with that mysterious organization!    

"Continue!"    

Chen Feng shouted coldly.    

Zhou Chengwu looked panicked, but at this moment. . . Zhou Chengwu suddenly let out a miserable cry. A strange energy burst out from his body. It instantly wrapped around Zhou Chengwu's body. This strange energy turned into endless purple-black flames in the next moment. In an instant, the flames started burning. Zhou Chengwu immediately howled in pain. Chen Feng's facial expression changed upon seeing this.