Transported to the 21st century, Oppenheimer, Leo Szilard, and Enrico Fermi grapple with the legacy of the atom bomb in this "shattering and beautiful" time travel novel (Entertainment Weekly). Oh Pure and Radiant Heart plucks the three scientists who were key to the invention of the atom bomb--J. Robert Oppenheimer, Leo Szilard, and Enrico Fermi--as they watch history's first mushroom cloud rise over the desert on July...