“But Roger Havering is proved to have journeyed straight up to London.”

“ Précisément ⁠—and therefore, as Mr. Havering left Elmer’s Dale at 6:15, and since Mr. Pace cannot have been killed before he left, or the doctor would have spotted the time of the crime as being given wrongly when he examined the body, we conclude quite rightly, that Mr. Havering did not shoot his uncle. But there is a Mrs. Havering, Hastings.”

“Impossible! The housekeeper was with her when the shot was fired.”

“Ah, yes, the housekeeper. But she has disappeared.”

“She will be found.”