Hardback. Each of the dozen investigations included in this book was chosen because in its own separate and distinctive way it served to illustrate how a single really important clue helped a shrewd detective to unravel a complicated crime. A trick of speech, a greasy paper ball, some fruit skins, an X-ray photo, a girl's remembered laugh, 3 anonymous telegrams, a couple of knots tied in the dark by a man in a hurry, a piece of torn paper with broken words, a forged signature on a receipt, some plucked hairs, an incorrectly addressed label - each became a key clue with which an astute and dedicated detective was able to unlock a concealed truth. The crimes in which these key clues pointed to an eventual solution occurred in countries ranging as far apart as Germany and Australia, Malaya and England, the United States and France. They span the entire globe. It is not of minor significance that in such a collection as this the first modern detective finds a place with the scientifically trained sleuths of the mid-20th century, though almost a century and a half separates them in time. Includes Dobkin and Allaway. 192pp. 8vo. h/back. From the library of true crime writer, Wilfred Gregg, with his personal b/plate. Ex-Boots library with remnants of the shield to fr. cover. Fr. hinge cracked, browned edges, lightly soiled covers. Reading copy. G. only