"“I think there may be one or two steps in your logic that I have failed to grasp, Mister Stibbons,” said the Archchancellor coldly. “I suppose you’re not intending to shoot your own grandfather, by any chance?” “Of course not!” snapped Ponder, “I don’t even know what he looked like. He died before I was born.” “Ah-hah!” (p. 130)"