As part of a sect called the Strages, Marcella is ordered to execute fierce assaults on the Logia—gifted believers in the triune deity known as the Crown. After receiving a vision, she begins to question her allegiance and finds herself seeking counsel from a leader in the Logia faith, whom she was sent to annihilate.

When her mentor, Thaed, uncovers her betrayal, he orders her to do the unthinkable—kill the Logia leader who has become her friend. Her choice will result in either the destruction of the Logia or her own death. The series of Strages attacks call the Logia to prepare for a major battle. In doing so, Gaultier Lassiter is enlisted. When he discovers an unconscious young woman buried in a snowdrift, his world is turned upside down. She has no memory and no ability to speak—only a strange symbol carved into her chest. The question of her identity leads to a journey of legendary proportions.

Between his own personal struggles with his estranged brother, his unmet potential, and the murder of a close friend, Gaultier fights to cling to his faith. And once the mystery is solved, will Gaultier be prepared to face the truth?