Celaena has survived deadly contests and shattering heartbreak-but at an unspeakable cost. Now, she must travel to a new land to confront her darkest truth . . . a truth about her heritage that could change her life-and her future-forever. Meanwhile, brutal and monstrous forces are gathering on the horizon, intent on enslaving her world. Will Celaena find the strength to not only fight her inner demons, but to take on the evil that is about to be unleashed?

A princess in exile, the boy she left at the altar, six enchanted cranes, and a dragon from the deepest sea. Shiori, the only princess of Kiata, has a secret. Forbidden magic runs through her veins. Normally she conceals it well, but on the morning of her betrothal ceremony, Shiori loses control. At first, her mistake seems like a stroke of luck, forestalling the wedding she never wanted, but it also catches the attention of Raikama, her stepmother. Raikama has dark magic of her own, and she banishes the young princess, turning her brothers into cranes, and warning Shiori that she must speak of it to no one: for with every word that escapes her lips, one of her brothers will die. Peniless, voiceless, and alone, Shiori searches for her brothers, and, on her journey, uncovers a conspiracy to overtake the throne--a conspiracy more twisted and deceitful, more cunning and complex, than even Raikama's betrayal. Only Shiori can set the kingdom to rights, but to do so she must place her trust in the very boy she fought so hard not to marry. And she must embrace the magic she's been taught all her life to contain--no matter what it costs her. From the author of Spin the Dawn comes a breathtakingly original fantasy inspired by East Asian folklore and perfect for fans of Leigh Bardugo or Tomi Adeyemi.

"A line that should never be crossed is about to be breached. It puts this entire castle in jeopardy—and the life of your friend." From the throne of glass rules a king with a fist of iron and a soul as black as pitch. Assassin Celaena Sardothien won a brutal contest to become his Champion. Yet Celaena is far from loyal to the crown. She hides her secret vigilantly; she knows that the man she serves is bent on evil. Keeping up the deadly charade becomes increasingly difficult when Celaena realizes she is not the only one seeking justice. As she tries to untangle the mysteries buried deep within the glass castle, her closest relationships suffer. It seems no one is above questioning her allegiances—not the Crown Prince Dorian; not Chaol, the Captain of the Guard; not even her best friend, Nehemia, a foreign princess with a rebel heart. Then one terrible night, the secrets they have all been keeping lead to an unspeakable tragedy. As Celaena's world shatters, she will be forced to give up the very thing most precious to her and decide once and for all where her true loyalties lie... and whom she is ultimately willing to fight for.