Comment Graphic Novels (Score 1) 726
Others have mentioned The Hobbit and Narnia. We listened to Narnia on audiobook and my 7 year old eats them up. I just started the Hobbit and he's hooked half-way through chapter 1.
Another idea is graphic novels. We got a few young reader books like Billy Blaster and Recon Academy (sort-of sci fi) which he can read along with. I discovered Missle Mouse which I had to read at first, but after a few readings he likes to look at for himself.