John Rhode's The Davidson Case is a classic detective novel of the Golden Age, featuring the brilliant and methodical Dr. Lancelot Priestley. First published in 1929, it is the third book in the long-running series that helped define Rhode as one of the foremost puzzle-plotters of his era. The story begins with the mysterious death of Sir Hector Davidson, a wealthy and influential industrialist. What appears at first to be a tragic accident soon reveals troubling inconsistencies: unexplained injuries, conflicting testimonies, and hidden family tensions. As suspicion spreads through the Davidson household, motives of greed, jealousy, and long-buried secrets begin to surface. Called upon to assist the investigation, Dr. Priestley applies his cool, logical mind to the tangle of evidence. His relentless analysis, detached from emotion, gradually exposes the flaws in alibis and the hidden connections that others overlook. Piece by piece, the web of deception unravels, pointing to a shocking and inevitable conclusion. Rhode's writing is marked by clarity, precision, and a devotion to fair play—every clue is placed before the reader, yet only the keenest observer will anticipate Priestley's final deduction. The novel reflects both the intellectual rigor and the atmosphere of unease that characterized the best of interwar detective fiction. The Davidson Case stands as a fine example of the classic whodunit: a carefully constructed mystery, a cast of intriguing suspects, and a detective whose logical brilliance ensures that truth, however uncomfortable, is finally revealed.