Light Years Books in Order

Kass Morgan's Light Years duology is a young adult space adventure set at the Quatra Fleet Academy, a military school that trains cadets from across the solar system. The Academy is opening to a new class after a devastating attack by a mysterious enemy, and its students arrive carrying very different expectations about what the future should hold.

For some, getting in is a dream. For others, it is the only way out.

The story follows four cadets whose lives would rarely have crossed anywhere else. Vesper is a talented pilot from a powerful family and wants to prove she can earn her own command. Cormak comes from the toxic planet Deva and takes a dangerous shortcut to reach the Academy. Arran has grown up as an outsider on icy Chetire and hopes to find a place where he belongs. Orelia arrives with a secret mission that could put everyone around her in danger.

The Academy gives the series a familiar school-story framework, complete with tests, squadron assignments, rivalries, parties, and first romances. But it sits inside a larger political conflict. The planets are divided by wealth, status, and long-held prejudice, and the cadets have been taught to distrust people from worlds unlike their own. Learning to work as a squad is not just an exercise. It may be the only thing that keeps them alive.

Light Years introduces the four perspectives and the pressure they face as they train together. It is as interested in hidden identities and shifting friendships as it is in flight drills and space combat. The characters' personal secrets keep colliding with the Academy's larger security problems.

The sequel, Supernova, moves the conflict closer to open war. The friends face divided loyalties, espionage charges, blackmail, and a conspiracy that makes it harder to know who is telling the truth. The stakes grow, but the focus stays with the four cadets and what their choices cost them.

Expect a fast-moving blend of military-school science fiction, romance, and team dynamics. Begin with Light Years, then read Supernova. The two books form one continuous story, and the second picks up the unresolved threats and relationships from the first.