NEW YORK TIMES BESTSELLER The third book in an epic series about a girl who will travel beyond the stars to save the world she loves from destruction from the author of the Reckoners series, the Mistborn trilogy, and the Stormlight Archive.

Spensas life as a Defiant Defense Force pilot has been far from ordinary. She proved herself one of the best starfighters in the human enclave of Detritus and she saved her people from extermination at the hands of the Krellthe enigmatic alien species that has been holding them captive for decades. Whats more, she traveled light-years from home as an undercover spy to infiltrate the Superiority, where she learned of the galaxy beyond her small, desolate planet home.

Now, the Superioritythe governing galactic alliance bent on dominating all human lifehas started a galaxy-wide war. And Spensas seen the weapons they plan to use to end it: the Delvers. Ancient, mysterious alien f