Defiant by Brandon Sanderson
The final book in an epic series about a girl who will travel beyond the stars to save the world she loves from destruction. Spensa made it out of the Nowhere, but what she saw in the space between the stars has changed her forever. The Superiority didn't stop in it's fight for galactic dominance while she was gone, though it's only a matter of time until humanity--and the rest of the galaxy--falls.
