Say, how would REH rewrite HP’s magic system?
Honestly, there doesn’t seem to be many limits to what one can learn or do
Also, REH’s magic wasn’t so direct or constantly in-use as I recall
Howard? He'd probably have weird shit like the chamber of Secrets containing a magical elephant and Harry needs to shank him in the fucking skull to free his power and save him from the piece of Voldemort's soul that's eating away his essence.
And The Dementors would be giant poison Dart colored frogs that laughs like the Joker and would sodomize the prisoners..Since Rape Frogs were an enemy Conan faced in the Tower of the Elephant if memory serves..
Voldemort might end up a snake like ghost possessing his corpse making him more Skeletor like. A big, jacked up Skeleton man who hisses like a snake and battles Dumbledore with horrific winged Ape Monsters he summons from the abyss or someshit.
Nagini would be an enormous Cobra too, one that sobbed and begged for death as she still remembers her human form.
Cornwell's version ala the one I did above, there'd be a lot of pissing on doorways and Harry might have to ritualistically strangle Cho Chan to gain mastery over the Elder Wand.