The humans summoned delvers which destroyed numerous planets during a past war, and while these delvers are long since gone, there is suspicion that they may soon reappear. The pilots are being trained specifically to fight delvers, which can be drawn into this realm by overuse of cytonics.

Spensa is put into a training flight consisting of the misfit dione Morriumur, Captain Hesho and his crew of tiny kitsen, the figment Vapor, and a rare Superiority human, Brade. Spensa quickly finds herself caught in a political game between Cuna, a dione government minister, and Winzik, head of the department that is battling Spensa and her people. Spensa poses as Alanik in order to infiltrate the pilot program and steal a hyperdrive. Using M-Bot's holographic technology, Spensa disguises herself as Alanik and, using Alanik's coordinates, teleports herself, M-Bot, and Doomslug to Starsight. Spensa learns that Alanik was traveling from her own backwater world to a Superiority space station called Starsight to train as a pilot. Rodge and the engineers discover footage showing a creature known as a 'Delver' consuming and destroying the first inhabitants of Detritus - Spensa recognizes it as the eyes that she sees in the Nowhere when using her cytonic powers.Ī cytonic alien named Alanik crash lands on Detritus and cytonically implants her destination into Spensa's mind. Cobb, now the DDF admiral, is worried that humans will lose unless they manage to steal a Krell hyperdrive, as the Superiority is sending increasing numbers of warships into battle. Spensa and the DDF have pushed the Krell war into space Spensa's cytonic 'defect' has been a key advantage in the war. It was published by Delacorte Press on November 26, 2019. It is the sequel to Skyward and second in a planned series of four books.

Starsight is a 2019 young adult science fiction novel written by American author Brandon Sanderson.

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