Tribute by Ellen Renner
Betrayed by her own father, Zara has waited years for revenge, and will stop at nothing to get it What if your greatest enemy was yourself? Zara is a mage, one of the elite in a world where magic is power, and the non-magical majority are oppressed and enslaved. When her Tribute slave and best friend is killed for the crime of literacy, Zara vows revenge by spying for the rebel Knowledge Seekers. But her bravery and magical skill are tested to the limit when a hostage from the other side of the Wall arrives at her palazzo. Sensing a kindred spirit, she promises to help him - but before she can, her secret is discovered. Hunted by her own kind, she must convince the Knowledge Seekers she is really on their side. But can she convince herself? Pain, romance, defiance and revenge combine in this powerfully written - and breathtakingly envisioned - YA fantasy.