Apocalyptic, lyrical, and erotically charged, Sor Juana or the Breath of Heaven is a novel of genius, obsession, and mystery surrounding the Baroque-era Mexican nun, Sor Juana Ines de la Cruz. When she died in 1695, she was arguably the greatest writer working in any European tongue, though she never lived outside her native Mexico. Juana was a child prodigy whose beauty and wit provoked a sensation at the vice-regal court in Mexico City. At nineteen,...