Don Winslow is a former investigator, anti-terrorist trainer and trial consultant. He is the critically acclaimed, award-winning, bestselling author of nineteen novels, including The Power of the Dog, Savages, The Winter of Frankie Machine and most recently The Cartel: A Novel (Knopf), a gripping, true-to-life, ripped-from-the-headlines epic story of power, corruption, revenge, and justice spanning the past decade of the Mexican-American drug wars. It’s 2004. DEA agent Art Keller has been fighting the war on drugs for thirty years in a blood feud against Adán Barrera, the head of El Federación, the world’s most powerful cartel, and the man who brutally murdered Keller’s partner. Then Barrera gets out, determined to rebuild the empire that Keller shattered. Unwilling to live in a world with Barrera in it, Keller goes on a ten-year odyssey to take him down. His obsession with justice—or is it revenge?—becomes a ruthless struggle that stretches from the cities, mountains, and deserts of Mexico to Washington’s corridors of power to the streets of Berlin and Barcelona.