“The Power of the Dog” by Don Winslow

An explosive novel of the drug trade, “The Power of the Dog,” takes you deep inside a world riddled with corruption, betrayal, and bloody revenge.
Art Montana is an obsessive DEA agent. The Barrera brothers are heirs to a drug empire. Nora Hayden is a jaded teenager who becomes a high-class hooker. Father Parada is a powerful and uncorruptable Catholic priest. Callan is an Irish kid from Hell’s kitchen who grows up to be a merciless hitman. And they are all trapped in the world of the Mexican drug "Federaci"o"n." From the streets of New York City to Mexico City and Tiajuana to the jungles of Central America, this is the war on drugs like you’ve never seen it.