Ellie: Yeah, the Unitologists on my crew wouldn't shut up about it. Why? Is it real?
Isaac: Yes it's real. Tiedemann made one using codes, patterns stored in our heads... mine and Stross. Everything that's happening on this station is happening because of that Marker. I have to get to it and destroy it and I need Stross to tell me how.
Ellie: You're a strange man, Isaac.
Isaac: Will you help me?
Ellie: We're about to suffocate. So. I think I'd better.
Isaac: Ok good, listen we need power. Without it we have no air and no train. The Sprawl's gotta have back-up batteries somewhere.
Ellie: Yes, the solar arrays up there! But they've been mothballed for years.
Isaac: Ok... alright, good. I'm heading there now. If I can start them up and get some power to the train.
Ellie: You'll need someone to open the collector panels. I can do that.