Killers of the Flower Moon by David Grann is a gripping true crime book that uncovers a shocking and little-known chapter of American history. The book tells the story of the Osage Indian Nation in Oklahoma, who became incredibly wealthy in the 1920s due to oil reserves on their land. However, members of the Osage tribe started mysteriously dying under suspicious circumstances, leading to a major FBI investigation. Grann meticulously investigates the murders and exposes a web of conspiracy, greed, and racism. Killers of the Flower Moon received widespread acclaim for its compelling storytelling and its exploration of a dark period in American history.