A remarkable alien technology could have devastating consequences for humanity in this novel by the Hugo and Nebula Award-winning author of The Forever War. In the far future, the accidental scientific breakthrough known as the Levant-Meyer Translation changes everything. Suddenly people can leap instantaneously across the universe, albeit temporarily, enabling teams of Tamers to explore far-flung worlds and prepare them for possible human habitation. But one expedition doesn't make it back alive. Jacque Lefavre achieves his lifelong dream of becoming a Tamer when he joins the Agency for Extraterrestrial Development. On his first exploratory mission to a planet known as Groombridge, Lefavre and his team encounter something truly extraordinary: a small, nonsentient creature that, when joined with another of its kind, creates a telepathic "bridge." But exploiting this psychic link could bring unanticipated perils, for it is about to bring Lefavre and his team into dangerously close contact with the L'vrai, ...