Seven-year-old Billy Miller starts second grade with a bump on his head and a lot of worries, but by the end of the year he has developed good relationships with his teacher, his little sister, and his parents and learned many important lessons. Interest Level: 3-6 Reading Level: 4.2 ATOS Book Level: 4.2 AR Interest Level: LG AR Points: 3 AR Quiz: 161077EN Reading Counts Level: 3.5 Reading Counts Points: 7 Lexile Measure: 620.