Chapter 5697

"After the expansion outside is completed, build a small city within the underground passageway. It would be best to build this city outside Nightsky City's system." "Leave a passage. If the people inside don't want to go out, the people outside can't come in." When he heard this request, Luo Jin was clearly stunned. "You mean we should build another place with absolute defense? Once Nightsky City falls, then...... we can hide there like turtles?" Samuel nodded. "You can think of it that way, but I actually have other more important uses for it. Remember, if you want the entrance passageway to be designed like what I said, it must be in the shape of a funnel." The bottom of the funnel was a switch, and the bottom was also the key point of going deep into the underground city. If the people inside controlled it, they could naturally achieve the effect that Samuel said. They needed people outside to come in, and they could open the mechanism so that people outside could come in smoo