In Romeo and Juliet, Shakespeare creates a violent world, in which two young people fall in love. It is not simply that their families disapprove; the Montagues and the Capulets are engaged in a blood feud. In this death-filled setting, the movement from love at first sight to the lovers’ final union in death seems almost inevitable. And yet, this play set in an extraordinary world has become the quintessential story of young love. In part because of its exquisite language, it is easy to respond as if it were about all young lovers.

Ryland Grace is the sole survivor on a desperate, last-chance mission—and if he fails, humanity and the earth itself will perish. Except that right now, he doesn’t know that. He can’t even remember his own name, let alone the nature of his assignment or how to complete it. All he knows is that he’s been asleep for a very, very long time. And he’s just been awakened to find himself millions of miles from home, with nothing but two corpses for company. His crewmates dead, his memories fuzzily returning, Ryland realizes that an impossible task now confronts him. Hurtling through space on this tiny ship, it’s up to him to puzzle out an impossible scientific mystery—and conquer an extinction-level threat to our species. And with the clock ticking down and the nearest human being light-years away, he’s got to do it all alone. Or does he?