The Crown of Embers (Fire and Thorns, Bk 2)

She does not know what awaits her at the enemy's gate.

Elisa led her people to victory over a terrifying, sorcerous army. Her place as queen should be secure. But it isn't. Her enemies come at her like ghosts in a dream, from foreign realms and even from within her own court. And her destiny as the chosen one has not yet been fulfilled. To conquer the power she bears, once and for all, Elisa must journey from the hidden catacombs beneath her own city to treacherous seas and a long-forgotten island. With her go a one-eyed spy, a traitor, and the man whom - despite everything - she is falling in love with. If she's lucky, she'll return. But there will be a cost.