A spark of white fire - 1 (1st paperback ed)

In a universe of capricious gods, dark moons, and kingdoms built on the backs of spaceships, a cursed queen sends her infant daughter away, a jealous uncle steals the throne of Kali from his nephew, and an exiled prince vows to take his crown back.

Raised alone and far away from her home on Kali, Esmae longs to return to her family.

When the King of Wychstar offers to gift the unbeatable, sentient warship Titania to a warrior that can win his competition, she sees her way home: she'll enter the competition, reveal her true identity to the world, and help her famous brother win back the crown of Kali.

It's a great plan. Until it falls apart.