Here is a YA fantasy that’s quick-moving. In Tricksters Choice by Tamora Pierce Aly’s parents are nobles fighters and spies for one kingdom, and she is kidnapped into slavery in another. A trickster god weaves a complicated plan to change the monarchy of this second kingdom and as a bargain only asks Aly to keep two girls alive until the equinox and then she can be released. Sounds easy but making bets with a deity never turn out as planned.
There is great world building here and a look at a class structure of the darker, native people who used to rule the island and the newer light-skinned conquerors. The two young princesses are mixed race and one may be destined to become the new queen, that is if she can survive the summer. This is a fun first book in the series.