six o’clock on Monday
`` _ Mesdames _ and _ messieurs _ ! I speak ! Listen ! I , Hercule Poirot , affirm that the man who entered the chemist 's shop , and purchased strychnine at six o'clock on Monday last was not Mr. Inglethorp , for at six o'clock on that day Mr. Inglethorp was escorting Mrs. Raikes back to her home from a neighbouring farm . I can produce no less than five witnesses to swear to having seen them together , either at six or just after and , as you may know , the Abbey Farm , Mrs. Raikes 's home , is at least two and a half miles distant from the village . There is absolutely no question as to the alibi ! '' There was a moment 's stupefied silence .