The Moonstone by Wilkie Collins

When a priceless Indian diamond is stolen during a young woman’s birthday celebration, a complex mystery unravels involving family secrets, hidden motives, and foreign pursuit. Through multiple narrators, including the unforgettable butler Gabriel Betteredge, the plot reveals layers of deception and suspicion. As detective Sergeant Cuff investigates, tensions rise between love, loyalty, and truth. Often called the first modern English detective novel, it combines suspense with social commentary. It’s a richly plotted tale of theft, guilt, and redemption.