During a fierce war in another dimension, a colossal dragon is struck from the sky and accidentally transported to an entirely different world. Crashing onto the Potter family’s estate during the Marauders era, the dying dragon transforms into a mysterious young woman with unmistakable draconic features. As Fleamont, Euphemia, and James secretly shelter the wounded stranger, they uncover an ancient magic unlike anything in the wizarding world—while the girl searches for a way home and learns what it truly means to belong.