Fantasy roleplayers often get deep into their games, but thirteen-year-old Keith Croft is about to take it to a new level.He's been invisible for seven years, smart but not working hard, athletic enough, but too lazy to excel. His parents are sorta cool, but only two weeks into his eighth-grade year, his friends are all busy with sports or projects and can't hang out. On the way home one day, he stops at a neighbor's yard sale and discovers a book...