Sharp-as-a-blade Sam lives in poverty, and she’ll do anything to claim a better life. This includes forcing her way into the Grand Central crime syndicate to learn the magical art of alchemy. Charismatic Ari was taken from his family as a boy to join Grand Central's greatest rivals – the Lumines. Long ago, he and Sam were childhood friends. Now, he’s one of his syndicate’s powerfully gifted stars. Among the gleaming skyscrapers of Angel City, these rival gangs deal in sand. This drug magically transforms users into a more perfect version of themselves. And Sam and Ari find themselves facing each other from opposite sides of an escalating conflict. Will ambition be enough to survive – and who they might be when it’s done?