four o’clock
`` Will it keep on like that till four o'clock ? '' asked Marie . `` Oh ! at four o'clock , '' replied Thomas , `` at the moment of the consecration you will hear something much louder than that . The great peals of joy , the song of triumph will then ring out . '' Guillaume was still smiling . `` Yes , yes , '' said he , `` those who do n't want to be deafened for life had better keep their windows closed .