At Thornbridge Academy, scholarship enchanter Niamh Arden has spent three years searching for her missing sister, Maeve. Her investigation leads her beneath the forbidden Old North Tower, where an ancient mirror shatters at midnight and swaps her soul with Cassian Veyr, the academy’s feared Chief Disciplinarian.
They have seven nights to survive each other’s bodies and return to the mirror. But the deeper they dig, the more terrifying the truth becomes: Cassian carries stolen powers and erased memories, Maeve’s disappearance is tied to a secret magic-transfer program, and Dean Corbin Vale has been preparing Cassian for a purpose far darker than either of them imagined.
Yet defeating Corbin is only the beginning. An ancient enemy awakens at the source of magic and begins draining power from the world itself. As Thornbridge falls into chaos, Maeve makes a devastating sacrifice, Cassian loses the magic that made him legendary, and Niamh is forced to fight for a world that may take even her memories of him.
Now, Niamh and Cassian must uncover the truth behind magic itself before everything they fought to save is taken from them.
