The survivors of the Vu-Hak nuclear destruction of Earth have arrived in a distant galaxy, fifteen thousand years in the past. They have settled on a moon orbiting a gas giant in a binary star system: the world from which the Vu-Hak did-will-launch its murderous assault on Earth.
While the survivors search for the ancestors of their attackers, adult humans are being grown from embryonic stem cells under Cain's direction. Genetically upgraded and biologically enhanced, these "post-humans" will ensure the future of the race.
Kate Morgan now in a cloned body, is about to meet her resurrected daughter. Before that, she must communicate with the Vu-Hak that has taken over William Hubert's mind. The last time this was attempted, Adam Benedict nearly died. The tiny band of survivors and their newborn charges need Kate to learn everything she can from the stowaway Vu-Hak-because its ancestors are nowhere to be found.
Meanwhile . . . something unforeseen is happening as a result of the machine-biological interface within the post-humans . . . and there are unexpected developments elsewhere in the solar system too.
