Runaway. Children of Ilaeden, #1

Merlise Dar is the daughter of the Elven Queen Cole Dralliw, and the Elven assassin Fulcan Dar. While her parents deal with matters of the Kingdom, she spends her time socialising with the other young ladies of Kismet. Unfortunately, they all enjoy belittling Merlise's twin brother Geran. It finally gets too much and Geran flees the city. Merlise chases after him, determined to drag him back kicking and screaming. In the process, she finds herself kidnapped by bandits, sold to a brothel, and enslaved by a travelling slaver.
Not to mention the Minotaur who takes a liking to her. It's a big difference from the prim and proper behaviour expected of her within Kismet.