The date when this story begins is a Saturday afternoon in June, 1900, about 3 p.m. The scene is the western room of a suite of offices on the fifth floor of a house in Chancery Lane, the offices of Fraser and Warren, Consultant Actuaries and Accountants. There is a long window facing west, the central part of which is open, affording a passage out on to a parapet. Through this window, and still better from the parapet outside, may be seen the picturesque spires and turrets of the Law Courts, a glimpse here and there of the mellow, red-brick, white-windowed houses of New Square, the tree-tops...