Harry Potter and the Dragon Riders

Having failed in completing the impossible task that Dumbledore set them, Harry and Hermione have fled England and the war. War, however, follows them. A chance meeting, however, throw Harry and Hermione into a world that is much bigger than what they expected. With new allies, can Harry and Hermione save everyone and stop Voldemort? A re-write of 'The Riders of Hogwarts'