The Narrow Corner by W. Somerset Maugham

A world-weary English doctor drifting through the Malay Archipelago falls in with a roguish skipper and his secretive young companion aboard a shabby schooner. When they anchor at a remote island, they are drawn into the brittle calm of a prosperous colonial household, where suppressed desires and past misdeeds simmer beneath polite surfaces. Flirtation and jealousy escalate into tragedy as buried truths—including a violent secret—come to light, forcing each person to reckon with chance, guilt, and the narrow margins by which lives are steered.

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