Dressed in a plain white shirt waist and an equally plain black cloth skirt, Miss Hazel Weir, on week days, was merely a unit in the office force of Harrington & Bush, implement manufacturers. Neither in personality nor in garb would a casual glance have differentiated her from the other female units, occupied at various desks. A close observer might have noticed that she was a bit younger than the others, possessed of a clear skin and large eyes that seemed to hold all the shades between purple and gray-eyes, moreover, that had not yet begun to weaken from long application to clerical work.