A landmark of Golden Age detective fiction, The French Powder Mystery by Ellery Queen is a brilliant example of the classic fair-play whodunit-ingenious, elegant, and relentlessly puzzling. When a wealthy cosmetics magnate is found dead under suspicious circumstances, the investigation uncovers a web of deception, hidden motives, and carefully planted clues. What begins as a straightforward crime soon evolves into a meticulously constructed puzzle mystery, challenging readers to follow every detail and match wits with one of fiction's greatest detectives. Celebrated for its intellectual rigor and logical precision, The French Powder Mystery exemplifies the best traditions of classic detective fiction. Ellery Queen presents all the evidence openly, inviting readers into a true fair-play mystery where observation, deduction, and reasoning reign supreme. Each chapter tightens the net, revealing how seemingly insignificant details may hold the key to solving the crime. Set firmly in the tradition of early twentieth-century crime fiction, this novel will delight fans of traditional whodunits, vintage crime stories, and Golden Age mystery novels. Its refined prose, clever misdirection, and unforgettable solution make it an ideal choice for libraries, mystery book clubs, and readers seeking a satisfying, intellectually engaging detective story. Both a gripping narrative and a masterclass in classic mystery construction, The French Powder Mystery remains a timeless showcase of why Ellery Queen helped define-and elevate-the detective novel. For readers who love classic mysteries, fair-play puzzles, and the enduring brilliance of Golden Age crime fiction, this is an essential read.