“Besides this red hair, there is another unifying thread that runs through these scattered incidents. There is something very peculiar and suggestive about the names of these women. Mr. Trip, you will remember, said he thought the typewriter’s name was Blake, but could not remember exactly. I suggest that it might have been Black, and in that case we have a curious series: Miss Green in Lady Bullingdon’s village; Miss Brown at the Hendon School; Miss Black at the publishers. A chord of colours, as it were, which ends up with Miss Gray at Beacon House, West Hampstead.”
Amid a dead silence Moon continued his exposition. “What is the meaning of this queer coincidence about colours? Personally I cannot doubt for a moment that these names are purely arbitrary names, assumed as part of some gen
