three o'clock
The Solution As Sir Charles was walking back from the Reeves ' house , he met Anne Yeo in Piccadilly . She had just taken the telegram from Eugenia . He greeted her warmly and asked her to walk a little way with him , to which she agreed , silently giving him credit for so heroically concealing his consciousness of her odd appearance . She herself was well aware that in her mackintosh , driving-gloves , and eternal golf-cap she presented a sufficiently singular effect , and that there were not many people in London at three o'clock on a sunny afternoon who would care to be found dead with her . ` I 've just seen Hyacinth , ' he said . ` Then you know about the trouble ? ' ` What trouble ? '