"Joshua speaking: you could make it your business by helping us get home." Graham sighs, and when he next speaks, his voice is the warmer, gentler thing that Detective Sousa has become accustomed to. "Graham speaking: I really don't think he was bluffing about that.

"Joshua speaking: of course he was bluffing, geographical paradoxes don't exist. That's a fiction.

"Graham speaking: you know what else was fiction until it wasn't? Alien spaceships landing in the Nevada desert!"

That seems to shut Joshua up, at least for a second or two, and Graham sighs.