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?

Music is magic in this novel set in a fantastical version of New Orleans where a battle for the city's soul brews between two young mages, a vengeful wraith, and one powerful song. Nola is a city full of wonders. A place of sky trolleys and dead cabs, where haints dance the night away and Wise Women help keep the order. To those from Away, Nola might seem strange. To Perilous Graves, it’s simply home. In a world of everyday miracles, Perry might not have a talent for magic, but he does know Nola’s rhythm as intimately as his own heartbeat. So when the city’s Great Magician starts appearing in odd places and essential songs are forgotten, Perry realizes trouble is afoot. Nine songs of power have escaped from the piano that maintains the city’s beat, and without them, Nola will fail. Unwilling to watch his home be destroyed, Perry will sacrifice everything to save it. But a storm is brewing, and the Haint of All Haints is awake. Nola’s time might be coming to an end.