Radiation. Hm. Clearly this is something he should know about, but doesn't. Rhys has gathered already that they are in some sort of vessel made to travel into space and between stars, but most of the workings of the vessel are beyond him. And the way this man says 'radiation' is leading him to believe it must be something more than the dictionary definition of the word, since radiation shouldn't leak.

"And where were you planning on going?" the man asks, his thick Welsh accent giving an amused lilt to his words. "Out the window?"