Kevin Avery, or "Freak" as he comes to be called, is greatly influenced by the story of King Arthur and the Knights of the Round Table, to the extent that he refers to his mother, Gwen, as the "Fair Guinevere" or more precisely, the "Fair Gwen of Air". Kevin's thirst for adventure takes him, on Max's large, tall shoulders on various "quests" around town, including one incident with a local band of thugs that could've ended less than happily. Mostly, though, the boys wander around town, Freak perched on Max's shoulders, generally talking non-stop as the two look for damsels in distress that they can rescue. While King Arthur was searching for the Holy Grail, Max and Kevin manage to find a purse and return it to its owner, a woman named Loretta Lee, who, ironically enough, knows, and still fears, Max's father even though he is supposedly serving a life sentence.
Kevin's imagination doesn't stop at the tales of King Arthur; he also convinces Max that he is going to be fine because he's being fitted for a bionic, robotic type body that will take care of all his physical problems and make him able to move around like everyone else. Interestingly, although Kevin's imagination has been quite useful to help him deal with the serious problems he faces, and he weaves tales of knightly heroism as easily as most people order a hamburger, he is also very intelligent and practical, and although he loves books for the escape, he also treasures them for something else they offer him, telling Max:
“Matter of fact, I watch tons of tube, but I also read tons of books so I can figure out what's true and what's fake, which isn't always easy. Books are like truth serum--if you don't read, you can't figure out what's real.”