[He doesn't appear to notice. Rather, his voice is pretty resigned:]

You're probably right. I don't think an operation like this could go for so long without anyone noticing. Even if there was a rescue effort, Zero would probably have all sorts of ways to deal with them.

[He had a fondness for traps that couldn't be denied, and it's only because he wants them alive that they were able to survive them all. If Zero wanted to defend an area, he's pretty certain it would be hell for even the most trained of professionals to break through.

However, a sliver of determination slips into his tone.]

Our best bet is to keep trying to get everyone to 63BP.

[They need to make sure all of the captives could be released.]