From the Collins Crime Club archive, the fifth Inspector French novel by Freeman Wills Crofts, once dubbed 'The King of Detective Story Writers'. THE PUZZLE OF THE PURPLE SICKLE The suicide of a sales clerk at the box office of a London cinema leaves another girl in fear for her life. Persuaded to seek help from Scotland Yard, Miss Darke confides in Inspector Joseph French about a gambling scam by a mysterious trio of crooks and that...