Written by award-winning author Carole Marsh, "Mary America: First Girl President of the United States," covers Mary's exciting adventures. Orphan Mary Americ, who becomes president at age 12 through a fluke in the law and a high IQ, is busy with slumber parties, balls, home school and the Situation Room. She must learn about the government, diplomacy and the White House, while being dependable, responsible and 12. Launch date: June 2009.