Several months after the events of Skyward, the defiant humans of Detritus have gained a foothold on the orbital platforms surrounding the planet. Hyperdrive is a still a mystery, so they’re strategically stuck, with little intelligence about the Superiority which is keeping the humans trapped. One day, a mysterious ship carrying a previously unknown humanoid alien crash lands on Detritus, and Spensa must quickly set off on a covert infiltration mission she is ill-prepared for, to the enemy settlement of Starsight, a major Superiority settlement.
The bones of the story are fine, and carry the main arcs of both Spensa herself and the conflict forward. However, the books seems to drag for much of the middle. Interesting events occur but the pace is off, with perhaps too much exposition about Superiority politics and how they have led to this. The final section picks up, however, with a satisfying and action-filled conclusion.
Spensa Nightshade is the daughter of a traitor. In a pivotal battle, her father, an accomplished fighter pilot, inexplicably turned on his comrades. And her family have been branded ever since. Exiled in the caverns of the planet Detritus, the remnants of humanity fight a seemingly unwinnable war with the enigmatic Krell, who regularly launch incursions from a shell of debris closing off the stars from view.
At seventeen, it is time for Spensa to find a profession, and she has always known what she wants to be. A fighter pilot, like her father. Despite almost insurmountable obstacles set in front of her because she is the daughter of a traitor, she might just get her wish.
Spensa is a rebellious teen, lashing out at everyone, but stubborn, brave, hardworking and determined. An interesting protagonist that the reader is almost immediately rooting for. Her inner and outer journeys as the novel progresses are arduous and nuanced. The worldbuilding is excellent and believable. The same can be said for the technological aspects. While the aerospace technology and battles are rather fanciful, they are well thought out and internally consistent. There is no deus ex machina saving the day, but a logical and well-constructed plot. Mr. Sanderson builds up tension brilliantly, with the final battle a breathtaking climax.