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 confirm that Mr. Inglethorp was the man who entered the chemist 's shop .