If you were to ask Melody what was wrong with her, she might say "I have spastic bilateral quadriplegia, also known as cerebral palsy. It limits my body but not my mind." If she felt you were looking down on her though, she might say, "We all have disabilities. What's yours?" 
 I wanted to like this book, but found it to be heavy-handed, melodramatic, and in many ways excessive. It was at the same time overly hopeful and overly hopeless, neither of which seems constructive. Characters are neatly divided into heroes and villains, plus a few stray weaklings with good intentions. 
 That said, there are important themes here, and it may serve to increase awareness and sensitivity in some readers.