I think you'll have more luck in the fantasy genre than specifically superheroes. Off the top of my head, I can think of The Silver Chair by C.S. Lewis, the Harry Potter series, and Carpe Jugulum by Terry Pratchett as fantasy novels with at least one mind control scene. I can't call to mind a single superhero novel even without mind control, although I can't say I've ever looked.
Actually, your best bet might be fan-fiction sites.