a quarter before three
Mr. Jamieson asked oddly . `` Do you KNOW at what time they left ? '' `` I do , '' Gertrude answered firmly . `` At a quarter before three my brother and Mr. Bailey left the house , by the main entrance . I -- was -- there . '' `` Gertrude , '' I said excitedly , `` you are dreaming ! Why , at a quarter to three -- '' `` Listen , '' she said .