"Still, we have the same solitude, the same journeys and searching, and the same favorite turns in the labyrinth of literature and history." Boris Pasternak to Marina TsvetaevaOne of the most compelling episodes of twentieth-century Russian literature involves the epistolary romance that blossomed between the modernist poets Marina Tsvetaeva and Boris Pasternak in the 1920s. Only weeks after Tsvetaeva emigrated from Russia in 1922, Pasternak discovered her poetry and sent her a letter of praise and admiration. Tsvetaeva's enthusiastic response began a decade-long affair, conducted entirely...