"They were an astonishing group: glamorous, gutsy, and irreverent to the bone. As cub reporters in the 1920s, they roamed across a war-ravaged world, sometimes perched atop mules on wooden saddles, sometimes gliding through countries in the splendor of a first-class sleeper car. While empires collapsed and fledgling democracies faltered, they chased deposed empresses, international financiers, and Balkan gun-runners, and then knocked back doubles...