Ed. Note: Viennese police-consultant
In the whole history of reporter-police relations there has never been a more interesting chapter than that written by Peter Harper. To credit the unique privileges he enjoyed, it is essential to understand that the police never found him an abuser of confidences. In addition, he had been instrumental “in tracking down through his independent efforts several notorious criminals sought by the police. He may be remembered for his inspired journalistic efforts in the nation-wide hunt for Chicago Jack Murphy, in the Barnaby-Ross revelations, and in the case that has come to be known throughout the world as the “Mimic Murders.” — The Editor
The allusion becomes intelligible when it is understood to which quotation Mr. Queen was referring. We asked Mr. J. J. McC. to clear up this point, which he was able to do only with difficulty. He discovered it to spring from a little-known quotation, “I hate a dumpy woman.” Undoubtedly Mr. Queen referred to Dr. Pennini. She was both “learned” and “dumpy,” to judge from his own description. — The Editor
Detective stories should concern themselves with relevancies. No description of the more or less well-known Queen domicile on West 87th Street is furnished here for the good and sufficient reason that it was fully described in an adventure post-dating The Dutch Shoe Mystery in time, but antedating it in appearance as a novel. I refer to The Roman Hat Mystery (Frederick A. Stokes Company, ’29). — Author’s Note
It must be borne in mind that the period during which the Doorn investigation took place preceded the current Police Department regulation which makes it obligatory for taxicabs to bear a special police-license number. — The Editor
For more detailed descriptions of Djuna, his background, and his association with the Queens, see The Roman Hat Mystery. — Editor’s Note
The manuscript of Murder of the Marionettes, one of the detective stories Ellery wrote under his own name. — J. J. McC.