When a deadly non-viral agent intended for biowarfare spreads out of control, scientists must scramble to ensure the survival of the human race. They turn to their last resort, a plan to place genetically engineered children inside the cocoons of large-scale robots--to be incubated, birthed, and raised by machines. But there is yet one hope of preserving the human order--an intelligence programmed into these machines that renders each unique in its own right--the Mother Code. 

Kai is born in America's desert southwest, his only companion his robot Mother, Rho-Z. Equipped with the knowledge and motivations of a human mother, Rho-Z raises Kai and teaches him how to survive. But as children like Kai come of age, their Mothers transform too--in ways that were never predicted. When government survivors decide that the Mothers must be destroyed, Kai must make a choice. Will he break the bond he shares with Rho-Z? Or will he fight to save the only parent he has ever known?In a future that could be our own, The Mother Code explores what truly makes us human--and the tenuous nature of the boundaries between us and the machines we create.