Echoes of Remnant Light (The Celestial Tide, #1)

A young warrior pledged to vengeance. A skyship captain harboring a perilous secret. A sparking conflict threatening to consume them both.
Jaleya is a guardian sworn to protect the rowshatari, who veer the power of the Boundless Sea. Her newest assignment is in Abylay, where ancient rowshatari called the Ora govern from their spiral tower. The citizenry sings the Ora's praises, but Jaleya longs to destroy them for ordering her sister's murder. When she discovers a resistance in the heart of Abylay, she believes her opportunity has come, but the Ora are prepared to crush the uprising before it begins.
Aboard the sentient skyship Captain Ameara calls home, she can dismiss the cares of the land far below and elude pursuit should a contract turn foul. But when an assassin entangles Ameara in his order's machinations, even the sky's haven will not be enough to protect her crew, for Ameara fears he is the herald of a bloody reckoning.
When the resistance and the Ora clash prematurely, all Jaleya loves is threatened, and Ameara discovers the assassin's true purpose may be to defect from his order, a crime punishable by death. To save what they hold dear, Jaleya will have to set her vengeance aside, and Ameara must outwit trained killers and evade the fallout.