After rewriting the timeline, Amber Cross—a centenarian soul in a child's body—dismantles Dumbledore’s "Architecture" and the Weasleys' greed. Using Voyager tech and a Goblin alliance, she saves Sirius and the Lovegoods, neutralizing Horcruxes through legal and magical mastery. In Hufflepuff, a new era is forged: a world of logic, loyalty, and peace that lasts for generations.