This is a very, very fun world... But I do hope there's at least one more piece that explains how and why Miss Hermione Granger of Gryffindor, Dumbledore's Army and the Order became an enemy of the Weaselys and the Ministry and even, it seems, Potter himself.

I am especially fond of your explanation of Percy's sorting; it makes perfect sense and blends so smoothly with canon. I also love that Hermione can be a mother and a badass CEO of Evil, Inc., without it being a massive problem and sign of bad parenting. <3