This one packs a punch. 
 From Booklist: 
 *Starred Review* Barbara Thorson, bullied and friendless, will not back down. She is smart, angry, won't follow the rules, won't let anyone close, and sees things no one else does. In short, she is a very disturbed girl, and the power of I Kill Giants is its ability to convey the reality of a frightened little girl's pain along with the wonder of her apparent fantasies. Kelly's portrayal of the material is nothing short of literary, echoing the similarly combined elements in Roald Dahl's Mathilda (1988), just as the giants that Barbara describes to her tentative new friend Sophia recall Quentin Blake's illustrations in The BFG (1982). Nimura's line work also retains the jittery quality of the British illustrator's style, creating a world of sharp tension. As Barbara begins to let people in, her insistence that the giants are coming threatens these intensely longed-for relationships. Whether or not they exist, the metaphor of giants to symbolize the vast terrors of a person's inner life has never been better realized. Along with Storm in the Barn (the 2009 Booklist Top of the List winner for Youth Fiction), this is graphic storytelling at its zenith: employing fantasy to offer profound insight and take readers on a deeply emotional journey. Grades 9-12. --Jesse Karp