"He saved me, Harry. When you abandoned me, and I ended up fifty years in the past — emaciated after living in a tent, on the run for you and on the brink of death after being tortured because of you  — Tom healed me. He helped me regain my strength and when I recovered, he taught me everything I needed to know about magic. Everything Dumbledore pruned away from the Hogwarts curriculum, everything that Magical Britain is too weak to embrace. From grey to dark magic, Tom taught me all of it." Hermione glanced up at the object of her blatant adoration, "And in return, I told him everything he needed to know. I told him how to  win."