After nearly twenty years, Vernor Vinge has produced an enthralling sequel to his memorable bestselling novel A Fire Upon the Deep. In Children of the Sky, ten years have passed on Tines World, where Ravna Bergnsdot and a number of human Children ended up after a disaster that nearly obliterated humankind throughout the galaxy. Ravna and the pack animals for which the planet is named have survived a war, and Ravna has saved more than one hundred Children...