It is Earth year 2256—but the fate of those who remember Earth is perilously in doubt. Mina Saunders-Chang and many of the surviving humans are stranded in the Centauri system, having barely survived their confrontation with the Telphon refugees. Now, everyone—human and Telphon alike—is caught in the blast zone of the Centauri supernova. And yet there’s only one question Mina is asking:
Where are Liam and Phoebe?
It is Earth Year 2223—but the Earth, along with the entire solar system, is gone. Liam and Phoebe, having barely escaped our exploding sun with their lives, are in stasis for the decade-long journey to the rogue planet Delphi, where they hope to catch up with the rest of the human refugees, find help for their injured parents, and pass along the devastating things they discovered on Mars: that the destruction of our world was no accident, and that someone might still be after them, trying to finish the job.
It is Earth year 2213—but, of course, there is no Earth anymore. Not since it was burned to a cinder by the sun, which has mysteriously begun the process of going supernova far sooner than anyone expected. The human race has fled to Mars, but this was only a temporary solution while we have prepared for a second trip: a 150-year journey to a distant star, our best guess at where we might find a new home.