In "The Cask," a seemingly ordinary incident - a broken cask at a London dock - unveils a puzzling mystery for Scotland Yard's Inspector Burnley. The cask, suspected to contain a body and gold, vanishes before confirmation. Inspector Burnley, known for his meticulous methods, embarks on a relentless investigation, tracing the cask's journey and meticulously piecing together the puzzle. His pursuit leads him from London to Paris, uncovering a cleverly orchestrated murder plot. Through careful deduction and relentless pursuit, Inspector Burnley ultimately exposes the perpetrator and brings them to justice.