"What?" Rose just looked baffled. Because she was, truly.

"You can't blow up the TARDIS," she scoffed quietly, a little amused by the idea. "Trust me, stronger forces have tried." Zagreus is in your -- stop that! She mentally yelled at herself.

"Sorry, I must have stumbled on something. Cybermen is a -- CLEARLY you know what they are. But all the rest, I don't know what you're talking about. I just meant, it's a catch, yeah? First it's like "Oh we'll upgrade your phone for free" and then it's 'and your body' and then it robs you of your free will. Nautilus is... totally the opposite, I promise." She made a giant X with her arms. "Noooooo cyberman here. I don't think they could come without a soul, or at least the ability to change their minds. And that's kind of... not how cybermen work, yeah?" A head tilt. "Sorry, I've upset you. Didn't mean to do that. Here, the only catch to being here is that you've been called to wake, but you can't change your timeline or you'll cause flaws, and it can be really devastating to find friends you'll never see again outside of here, only to lose them again here. That's it. That's the only catch."

Another head tilt. "And besides that, there's always hope, yeah? This place... has a lot of hope."