Crozier snarled and went back to work. Francis. He ought to finally pop that little twit in his handsome face.

He went back to his work, finally settling into things and feeling somewhat better about the whole trip. Any chance to talk about centripetal force usually brightened his naturally glum state of mind.

And then he heard his voice again, and he slammed his book shut with annoyed grunt. "That stuff is what makes our sorry videos worth a damn."