Hardcover. NY, Doubleday and Co., 1st, 1954, Book: Very Good, Dust Jacket: Poor, Hardcover, gray cloth with orange stamping on spine. Tommy Hambledon, a British secret agent, investigates a case that includes stolen jewels, secret airplane plans, gangsters, and international assassins. Cheap paper tanned, dust jacket worn with chipping but no markings. Despite dj, a sound copy. One of the scarcer title by this author (actually a married couple).