It's been thirty years since a shadowy alien armada was defeated in battle; now the Deravans are back to finish what they started: exterminate the human race. The year is 2247, and Commander Frank Yamane's grave warnings of their imminent return have gone unheeded. Once hailed as a hero who saved Earth from almost certain destruction, he is now seen as a relic from a past most people would soon forget. Mired in petty squabbles and clashes over limited resources, the solar governments that still exist are consumed by their own self-interests, while millions of survivors cling to a tenuous existence. Yamane fears an increase in hostilities will break out into open war, and is sent as an ambassador to broker a peace agreement against Earth's most fearsome rival, the Jovian Alliance. What he doesn't realize is that the Deravans are behind it all. Their intent is to eliminate humanity in one fell swoop, and claim what they have craved since the dawn of time unquestioned dominion over the galaxy. In this heart-pounding final chapter of the Sky Chronicles, will the Deravan's insidious plan of conquest finally be realized or can Yamane overcome the impossible one last time and stop them?