What was in my mind as I waited for sleep and the engines thundered their ineffectual berceuse was the chapter, a brief one, about the Jews.

I prithee, Remember, I have done thee worthy service; Told thee no lies, made thee no mistakings, served Without grudge or grumblings: […]

A hundred yards or so away the throaty beat of a didgeridoo drifted down from some ancient corroboree, a splendid accompaniment to the music of the night

The game is called a double, and you score 200 instead of 100 when your adversary does not get 100, which, in technical language, is called crossing the Rubicon.