Rebecca Yarros

"Twenty-year-old Violet Sorrengail was supposed to enter the Scribe Quadrant, living a quiet life among books and history. Now, the commanding general--also known as her tough-as-talons mother--has ordered Violet to join the hundreds of candidates striving to become the elite of Navarre: dragon riders. But when you're smaller than everyone else and your body is brittle, death is only a heartbeat away...because dragons don't bond to "fragile" humans....

When Ryan dies in Afghanistan, he leaves a letter asking that his friend Beckett watch over his sister, Ella. Beckett has already been corresponding with her under his nickname, Chaos, and after leaving the service he goes to visit Ella, who is the motherof twins. One of the twins has been diagnosed with leukemia, and Ella is dealing with the illness while running a business-- singlehandedly. When Beckett becomes part of Ella's life, will his promise...