Chapter 618 The Last Opportunity

"How exactly is this Heavenly Thunder Pill controlling these Blood Pill Slaves? We know that ordinary alchemists control Pill Slaves by using pills as their energy source, but clearly, there's no trace of pill energy inside these Blood Pill Slaves at the moment. It's as if they are using their own energy. This scene is quite interesting. If I could understand this, perhaps my Spirit Pill Slave will make significant progress!" Du Fei pondered, staring at the battle circle before him, his thoughts wondering continuously. Ever since entering the Dead Sea Ghost Forest, unexpected events occurred one after another. This difficult and hard-to-understand situation made it even clearer to him that obtaining the Heavenly Thunder Pill was not going to be as easy as imagined. It should be known that these Blood Pill Slaves were likely the fate of past powerhouses who wanted to acquire the Heavenly Thunder Pill. Even such powerhouses ended up with an unwilling death; perhaps, if things went poorly, this was the fate Du Fei and the others would face. "It seems that we must be extremely careful here; otherwise, a single careless move might cost me my life!"