There's something about that little gasp that makes most of Martin's worries ease off, and he gives a small smile.

"Yeah. Those are thousands and thousands of miles away, giant balls of fire in the sky." He holds up the lantern demonstratively, keeping it dim. "Like this, but massive, like the sun. And because there's so many, people like to try and see pictures in them. That's what constellations are, they're the pictures we make out of the stars we see."