Trickster's Queen - Tamora Pierce
One story, two books.
These are also actually a follow-up to "The Song of the Lioness" quartet, which I haven't read. They are about the daughter of the heroine of those novels, so these do stand alone - but on the other hand, I felt that I was probably missing some of the world-background that had been drawn in the previous books.
These tell the story of the 16-year-old Aly, who has grown up in her famous mother's shadow, but has also been trained in spycraft by her father. Although she's eager to 'grow up,' her parents don't seem to want her to actually work as a spy (this is really a flaw in the book, from my perspective, because why else would they have trained her to BE a spy from early childhood?) Rebelliously, she runs away, is kidnapped by pirates and sold as a slave - but, luckily, she is Chosen by a Trickster god to become involved in an incipient rebellion on the colonial islands she is sold into. Therefore, he makes sure she is sold to the Nicest Slaveowners EVER, and she is charged with guarding their children, including two half-breed daughters who just happen to be royalty on both sides of the family. Lots of intrigue and action ensues...
Fun story, with some not-too-overbearing commentary on racism, colonialism, etc, as well as some somewhat-too-obvious Advice For Young Women regarding appropriate relationships and self-respect.
However, Aly is just RIDICULOUSLY competent. There's nothing she can't do, seemingly - and if there was a possibility she couldn't do it, her god-patron helps her out. Her romance (and it is a rather sweet one) proceeds without a hint of a problem... (but maybe I objected to that just because I have been feeling rather bitter about romance this month!) Quite a lot of the events are very much idealized and not very believable - but this is pretty much a fairytale, after all...