Winter's Orbit (Winter's Orbit 1)

Ancillary Justice meets Red, White & Royal Blue in Everina Maxwell's exciting debut.
While the Iskat Empire has long dominated the system through treaties and political alliances, several planets, including Thea, have begun to chafe under Iskat's rule. When tragedy befalls Imperial Prince Taam, his Thean widower, Jainan, is rushed into an arranged marriage with Taam's cousin, the disreputable Kiem, in a bid to keep the rising hostilities between the two worlds under control.
But when it comes to light that Prince Taam's death may not have been an accident, and that Jainan himself may be a suspect, the unlikely pair must overcome their misgivings and learn to trust one another as they navigate the perils of the Iskat court, try to solve a murder, and prevent an interplanetary war... all while dealing with their growing feelings for each other.