ten o'clock
And at this sight he stopped short in astonishment , which slowly developed into uneasiness . Shadows traversed the blinds ; there seemed to be considerable bustle and stir up there . Perhaps Monsieur Rambaud had stayed to dine ? But the worthy man never left later than ten o'clock . He , Henri , dared not go up ; for what would he say should Rosalie open the door ? At last , as it was nearing midnight , mad with impatience and throwing prudence to the winds , he rang the bell , and walked swiftly past the porter 's room without giving his name . At the top of the stairs Rosalie received him .