This is the story of a war. A war fought by children. It is not a war that most of them choose to fight. Certainly, Rosie knew nothing about this war the day she entered school. School, she believed, was a place where she would make new friends and learn many things. The day Rosie fought a bully, her life at school changed forever. On that day, Rosie and her classmates declared war on schoolyard violence. As a result, Rosie's Rule came into being, but having a rule, Rosie and her classmates learn, is not always enough. A rule like a law only has meaning if it is enforced. Enforcing Rosie's Rule leads to a crisis and an ending that is as unexpected as it is reaffirming. This story is a testament to the resiliency, creativity, self-determination and the power of an individual to make a difference.