"Uh-huh." Alex feels like an absolute dick for it, but he's not about to help the guy hands-on if he's still got no idea where he came from. Moon viruses, man. He's seen the B-movies, all right, he knows how the sci-fi horror films go down. "Wonderland. I'm being legit here. You're stuck here now, no way back, watch yourself, etc. It's less fun than it sounds."

Looks like Astro-Boy here has already picked up one of those communication doodads. Well, good. Means he's not totally helpless, and Alex can wash his hands of this whole obligation real damn soon. He's not cut out to play tour guide, all right? "Where'd you come from, anyway? Space?"

He's only being partially sarcastic.