About five o'clock
Sadie went about her household duties , humming softly . Once she thought she heard Pert call , but as the sound was not repeated , she fancied herself mistaken , and sat down to read , happy in the thought that Pert must have fallen asleep . It seemed to be blowing up cooler ; the wind had shifted , and a few dark clouds were rolling up from the west , with distant rumbling . About five o'clock Mr. and Mrs. Barlow drove up in a buggy . Mrs. Barlow got out , and Mr. Barlow drove on toward the store . Sadie saw them and opened the door . `` Is Pert here , Sadie ? ''