
Between the Solar Array Pumped Laser & Troy the two trillion ton nickel-iron battlestation created by eccentric billionaire Tyler Vernon Earth has managed to recapture the Sol system from their Horvath conquerors & begin entering the galactic millieu But when the Rangora Empire rapidly crushes humanity&s only ally it becomes clear the war is just beginning At the heart of nickel iron & starlight are the people Marines Navy & civilians who make Troy a living breathing engine of war Survivors of apocalypse they know the cost of failure If this Troy falls no one will be left to write the epic Citadel continues the saga begun in Live Free or Die following the paths of several characters during the first years of The Spiral Arm Wars culminating in the First Battle of E Eridani