--graphic novels (we used to call 'em comic books!) But be careful that they aren't too "dark" in tone. There's a Heroes of the Bible graphic version--all the good guys' stories, told comic-book style. We have it; I can find it for the publisher if you would like.
Another great series to check out is Bone
. It's kid lit, but I love it! I think a 10 year old boy would enjoy it.