In the face of imminent annihilation, a population makes a last stand against insurmountable odds. Astronomicon: Those Left Behind is the epic account of the deadly invasion of the Eridani homeworld. Caught up in the mayhem and destruction, an ordinary man strives to save his children. Their only chance is infiltrating the secret evacuation fleet for the elite, but first he must ensure that fleet escapes without detection. This 3rd volume in the epic Astronomicon series is the story of the Eridani people's last stand, their attempts to foil an alien enemy's intention to wipe them from existence and a mystery that runs deeper than any of them suspect.