“We’re only a few hundred kilometers from our target portal,” Nie Tian said.

Jing Feiyang nodded. “That seems right. Enslaved humans are laboring here, which usually means that an outsider spatial tunnel is in the vicinity.”

At this point, they had already drawn experience from their previous operations.

They had discovered human slaves working on islands that were close to every one of the five portals they had previously eliminated.

Therefore, they knew ...