Crossing Thresholds

AU where the war ends at the tail end of Harry's 6th year, and he, Ron, and Hermione return to Hogwarts for one last year before being thrust into the world they had to save. Unfortunately, Headmistress McGonagall has an announcement that will take them and many of their peers from the familiar walls of Hogwarts, and out to their sister-school; Beauxbatons.