The exiled Princess Shiori must unravel the curse that turned her six brothers into cranes, and she is assisted by her spurned betrothed, a capricious dragon, and a paper bird brought to life by her own magic. Shiori, princess of Kiata, has a secret: Forbidden magic runs through her veins. On the morning of her betrothal ceremony she loses control, and it forestalls the wedding she never wanted-- but it also catches the attention of Raikama, her stepmother. Using a dark magic of her own, Raikama banishes the princess, turns her brothers into cranes, and warns Shiori that for with every word that escapes her lips, one of her brothers will die. Peniless, voiceless, and alone, Shiori searches for her brothers-- and uncovers a conspiracy to overtake the throne. Now she must embrace the magic she's been taught all her life to contain. -- adapted from jacket

Series information from Goodreads.