After a moment of silence, Huan Yun swallowed, and said, "I overheard the conversation between Wu Yang and the others. They said that their preparation has almost completed, and all they need is enough energy to activate the space gate."
Hearing what she said, Xu Xiang pondered for a moment and asked, "Did they find a way to generate the energy to activate the space gate? What minerals did they use?"
Huan Yun shook her head, and said in a trembling voice: "They did find a way to create the energy to activate the space gate, but they didn't use minerals."
Thinking that it would be impossible to generate enough energy without at least using the minerals mining from meteorites, Xu Xiang asked curiously: "Then what do they use as a source to produce the energy?"
"It's… Living humans." Huan Yun said in horror.
Xu Xiang thought that she heard it wrong, and asked again in doubt: "What did you say? Living humans?"
