When tomboy Marty is cast as the princess in the third-grade play, she learns about improvisation, which helps her become more adaptable. Interest Level: K-3 Reading Level: 3.8 ATOS Book Level: 3.8 AR Interest Level: LG AR Points: 2 AR Quiz: 143862EN Reading Counts Level: 3.8 Reading Counts Points: 5 Lexile Measure: 660.