The Cairo Garter Murders (Hugh North #10), by Van Wyck Mason (epub/Kindle/pdf)
#10 in the Hugh North series brings Captain Hugh North of G-2 Army Intelligence to Cairo, investigating a series of murders. In each instance, the killer leaves a red-and-black female garter fastened about the left arm of the victim. Are the murders linked with the recent supply of modern weapons reaching Arab tribes? And what of the trouble brewing in Palestine? Assisted by British agent Major Bruce Kolgour, North digs into his most puzzling case yet!