Book excerpt: DIVDIVSam loves football. There’s nothing better than the rush he gets when his team, the Cowboys, are working together—moving closer and closer to the end zone./divDIV In a key game, the Cowboys beat their arch rivals to remain undefeated, thanks to a major play by Sam. But the celebration ends when he and his teammates make an unwelcome discovery./divDIV Is the Cowboys’ perfect season in jeopardy?/div/div