Yeah, it's hard to tell if that joke hit its mark or went over his head because all Childermass does is quirk an eyebrow at Shura once she makes it. In theory, he's at least heard of people hating their in-laws, but who even knows.

"Hm." After her next clue, though, he looks down at the cards on the table. "If the were hiding them, that wouldn't be a very fair game. You'd have to expect anyone playing to know what these all are already."

Unless the game is unfairly marketed at the very slim margin of teenage aliens who are really into space biology.