Crux

Minerva McGonagall doesn't quite know what to do when a Muggle woman called Hermione Granger barrels into her life, shutting down her concerns with single word and adapting to a world of magic as if she'd been born to be there. Maybe, just maybe, she had been. A decimated wizarding population comes to realize that maybe this Muggle is the crux to solve all their problems. HG/MM