Book excerpt: The New York Times bestseller and the Edgar Award for Best Fact Crime winner Killers of the Flower Moon is now adapted for young adults. **KILLERS OF THE FLOWER MOON IS SOON TO BE A MAJOR MOTION PICTURE DIRECTED BY MARTIN SCORSESE STARRING LEONARDO DICAPRIO AND ROBERT DE NIRO** This book is an essential resource for young adults to learn about the Reign of Terror against the Osage people - one of history's most ruthless and shocking crimes. In the 1920s, the richest people per capita in the world were members of the Osage Nation in Oklahoma, thanks to the oil that was discovered beneath their land. Then, one by one, the Osage began to die under mysterious circumstances, and anyone who tried to investigate met the same end. As the death toll surpassed more than twenty-four Osage, the newly created Bureau of Investigation, which became the FBI, took up the case, one of the organization's first major homicide investigations. An undercover team infiltrated the region, struggling to adopt the latest modern techniques of detection. Working with the Osage, they began to expose one of the most chilling conspiracies in American history. In this adaptation of the adult bestseller, David Grann revisits his gripping investigation into the shocking crimes against the Osage people.