Oh pure and radiant heart

Oh Pure and Radiant Heart imagines a world in which the three geniuses who were key to the invention of the atom bomb--physicists J. Robert Oppenheimer, Enrico Fermi and Leo Szilard--are displaced to contemporary America at the moment history's first mushroom cloud rises over the New Mexico desert in July 1945. When the scientists appear in Santa Fe in 2003, Ann, a reference librarian, and her doting husband Ben take them in, and with the long-dead physicists for houseguests are swept up in a quixotic and calamitous quest.