four o'clock
He was a sharp boy , he said , and the more he saw , the more useful he would be , and as he never gave him any money , there was no risk of his mistaking his hours . `` When do you expect him ? '' asked Malcolm . `` At four o'clock , '' answered Travers . `` It is four now , '' said Malcolm . A shrill whistle came from the Chelsea shore . `` And there 's Davy , '' said Travers .