This is a prime example of an inside joke gone WAY too far.
At ImagiCon, me and a few other people drew all over the white board in the comic panel room, and for some reason earlier we'd been talking about Harry Potter and Frank Miller in the same sentence, and so I ended up drawing this gritty Sin City-esque Harry Potter on the wall, with his Nimbus 2000 drawn, being all, "I'm the Goddamn wizard."
After that, this was the natural progression. And not only did I draw a fake cover, I drew two comic pages as well.
Like I said. Too far.
Page One: [link]
Page Two: [link]