The Iron Daughter by Julie Kagawa

The Iron Daughter:
Half Summer faery princess, half human, Meghan has never fit in anywhere. Deserted by the Winter prince she thought loved her, she is prisoner to the Winter faery queen. As war looms between Summer and Winter, Meghan knows that the real danger comes from the Iron Fey, iron-bound faeries that only she and her absent prince have seen. But no one believes her. Worse, Meghan's own fey powers have been cut off. She's alone in Faery with only her wits for help. Trusting anyone would be foolish. Trusting a seeming traitor could be deadly. But even as she grows a backbone of iron, Meghan can't help but hear the whispers of longing in her all-too-human heart.

In the second book of the Iron Fey by Julie Kagawa, we follow Meghan as she resides in the Winter Court as a "guest" of Queen Mab. Abandoned by Ash, she is left to flounder on her own while trying to stay out of reach of the cruelty of the Winter Fey. But Rowen, Ash's second oldest brother has different plans, he tricks Meghan into speaking her true feelings for Ash and they are used against her as the Court is attacked by a betrayer from within. When the Scepter of the Seasons is stolen and Sage, the oldest of Mab's sons, is murdered by the Iron Fey in front of Meghan, no one believes her claims and war is declared against the Summer Court. Ash risks everything to rescue Meghan and they escape the Court and begin running for their lives. Puck returns, a lot more sensitive to Meghan, even revealing his love for her, and Ash becomes distant with Meghan quickly going off on his own to reclaim the Scepter. Spending time with Puck while they escape the Nevernever confuses Meghan because of the feelings she discovers she has for him, even though she knows that she loves Ash. They make an unlikely alliance with Ironhorse, the very Iron Fey that captured Ash and brought him to the old Iron King. Off on his own, something terrible happens to Ash while he tries to recover the Scepter and now it's up to Meghan, Puck and Ironhorse to save the Winter Prince and the Courts from war. While on their mission to recover the Scepter, with her own powers locked away from her, Meghan discovers that she is able to control the Iron Fey Glamor and in doing so a new secret is revealed, and I can't wait for the next book to find out more about Meghan's new ability.