The Wild Boy
 The novel switches among several different timelines which ultimately tie together in the last few chapters. As the novel opens, the Lindauzi are reeling from the extinction of their soul-mate species, the Iani, without whom they will lose all sense of themselves and succumb to "reversion," a return to a feral, animal state. Many Lindauzi are choosing suicide over the possibility of reversion; a civil war has erupted between those who believe it is time for the Lindauzi to surrender to extinction, and those who wish to leave the homeworld in search of a compatible species to replicate the bond the Lindauzi had enjoyed with the Iani. Corviax, son of the Left Emperor, finally wins the right to lead a search expedition; they discover that the humans of Earth share many similarities to the Iani and, believing that the Iani emotional bond with the Lindauzi can be recreated in the humans, Corviax instigates an ambitious scheme to make the human population more receptive to the Lindauzi. He begins by covertly releasing viruses to thin the planet's population, and his fleet endears itself to the sick and traumatized survivors by arriving with a cure for the virus, seemingly by pure coincidence. Once a bond of trust has been established, the Lindauzi begin building settlements and inviting humans to live with them. Further dependence is fostered in the humans by the systematic decimation of the humans' companion animals, such as dogs and cats, by more viruses. Within three or four generations, humanity is completely dependent upon and subservient to the Lindauzi, who have begun their breeding program in earnest. Ilox is the pinnacle of the breeding program, an exceptionally bright and empathic human boy who at an early age can sense the presence and emotions of nearby Lindauzi. He becomes the pet of Phlarx, a young Lindauzi noble, and the two form a deep bond - "heart to heart, mind to mind, soul to soul," as is the stated goal of the breeding program. Despite his attachment to Phlarx, Ilox is insatiably curious, especially about human history. "Dogs" - as humans are now called by the Lindauzi - are forbidden from acquiring this knowledge, but Ilox eventually learns of the origins of the Lindauzi, the extinction of the Iani, and the lengths to which the Lindauzi went to engineer humanity to their specifications. At the same time he comes by this knowledge, Ilox falls in love with another pet human, Nivere, and is caught having sex with her. Nivere is euthanized, and Ilox - formerly seen as the Lindauzi hope for a new partner species - is now thought to be a failed breeding experiment of no use to the Lindauzi. He is separated from Phlarx and abandoned in the wild to fend for himself or die; his disappearance is written off as an accidental death. Ilox is taken in by a small tribe of "wolves" - humans who have resisted domestication by the Lindauzi and live apart from them, hiding in the ruins of human cities. Ilox eventually adapts to life among the free humans in the settlement of Jackson, and takes a wife, Mary, with whom he has two sons, Caleb and Davy. Despite his new life as a "wolf," Ilox misses Phlarx dearly, and one day when Caleb is eleven, Ilox leaves the human settlement to return to his Lindauzi bondmate. Not long after this, the settlement falls under siege by Lindauzi "hounds," humans bred to hunt and kill "wolves." Caleb, the only survivor of the raid, wanders on his own for a time until he is discovered and brought before Prince Orfassian, son of the late Corviax. Orfassian, impressed with the fact that Caleb can speak (and specifically, curse) in the Lindauzi language, decides to keep Caleb as a novelty, and has him trained as a "show dog." Ilox, meanwhile, has been reunited with Phlarx and tries to tell him about the indignities humanity has suffered to become the pets of the Lindauzi. He tries to explain that the symbiotic bond that existed between the Iani and the Lindauzi can never be recreated as long as humanity remains subservient to the Lindauzi, and that humans cannot be forced into loving another being, but must be allowed the choice of loving, as Ilox chose to love his wife Mary. Phlarx cannot comprehend this, however, and thinking that Ilox has been corrupted by living among wolves, has him sealed in a sensory deprivation cocoon in an attempt to correct what Phlarx sees as a flaw in Ilox's otherwise impeccable breeding. This only has the effect of driving Ilox insane, however, and while Ilox is now more dependent upon Phlarx than ever before, he is a far cry from the intelligent, capable companion Phlarx desired. Caleb is eventually reunited with his father, who no longer recognizes him, and the pair escape from the Lindauzi city of Umium - built on the ruins of New York City - via the old city's subway system. They are intercepted by Phlarx, who is on the run from Lindauzi authorities for displaying signs of reversion and is suffering from severe guilt for what he has done to Ilox. Phlarx agrees to take Caleb and Ilox to the "Summer Country" - South America - where it is too warm for Lindauzi to settle and humans live with relatively little interference. Prince Orfassian, upon hearing of Phlarx's supposed reversion, the escape of Ilox and Caleb, and the truth behind Ilox's supposed "death" years previously, finally realizes that the bond cannot exist in humans the way it did in the Iani, and that the Lindauzi are facing inevitable reversion and extinction. He arranges for the air filters in the forcefields surrounding the Lindauzi cities to be altered so that carbon monoxide emissions will slowly reach lethal levels, leading to a peaceful and dignified death for his species. Caleb adapts well to life among the human population of the Summer Country, and Ilox slowly begins regaining his senses, though he never recovers them completely. He has recurring prophetic dreams about the death of all the Lindauzi, which the humans of the Summer Country decide to act on, making tentative exploratory forays beyond their safe haven in the tropics. Phlarx does not fare as well as the humans, however; he suffers in the tropical heat, and this, combined with his compromised bond with Ilox, leads to his death within a few months. Ilox dies along with him, and the pair are buried side by side - Ilox on the boundary of the sanctified ground of the village cemetery, and Phlarx just beyond it.