Way of the warrior kid

"Fifth grade was the worst year of Marc's life. He stunk at gym class, math was too hard for him, the school lunch was horrible, and his class field trip was ruined because he couldn't swim. But what was most awful thing about fifth grade? Kenny Williamson, the class bully, who calls himself the 'King of the Jungle.' When Marc's mother tells him that his Uncle Jake is coming to stay for the whole summer, Marc can't wait. Uncle Jake is a for real,...