Book excerpt: A unique dual portrait shines new light on two of the most dramatic figures of the twentieth century. Drawing on sources in Cuba, Latin America, the United States, Europe, and Russia, and on material not available to previous biographers, Simon Reid-Henry has crafted a compelling portrait of a revolutionary era and the two men whose names and deeds personify it: Fidel Castro and Che Guevara. What began as an association of convenience would fundamentally shape their political visions, propelling them further than either had dared imagine. Ironically, though, their jointly conceived vision of revolution would ultimately force them to choose between friendship and their beliefs. At a momentous turning point in Cuban history, Simon Reid-Henry offers a fascinating and original chronicle of two of the most powerful personalities in recent memory.