James Patterson's Maximum Ride series will appeal to some Hunger Games readers for its focus on kids their own age having to save the world from the adults' mistakes. Mutant kids with wings, known as The Flock, work together to foil a plan to develop a genetically engineered master race. Patterson's series is on par with his writing for adults--lots of action, no claims to great literature--but many of my readers have plowed through the series and asked for more. If they've read The Hunger Games, the violence in these won't be shocking. Appropriate for 6th grade and up.