Cardigan McCoy, a reporter for his junior high school newspaper, and his friends solve a mystery of vandalism and attacks by the self-proclaimed "Green Ghost." The suspect list changes with new clues at every turn, to include everyone from Cardigan's teenage rival to the Chief of Police Cardigan and his diverse crew scramble to keep up and even get a step ahead of the vandal, chronicling every move in their school paper, The Northern Notice. Can you solve the mystery of the "Green Ghost" before these rambunctious reporters do?