The fourteen stories collected here are glimpses into the most fantastic possibilities of human evolution — biological, social, and cultural. From a New York split into warring walled enclaves, to the destiny of our species as a strain of virus, to an Africa made over by nanotech messiahs, to a future Earth protected by half-alien angels, to wars of liberation from what we have always so tragically been: these are only some of the awe-inspiring transitions to be found in Babylon Sisters. Read here of rebellion by books against their librarian, of cosmic destiny remade by stellar lunatics, of disorienting ventures beyond the boundaries of the human; discover here the perverse and terrible dangers of the age of posthumanity.