In 1776, after witnessing the execution of Nathan Hale in New York City, newly occupied by the British army, young Sophia Calderwood resolves to do all she can to help the American cause, including becoming a spy. Interest Level: 3-6 Reading Level: 5.1 ATOS Book Level: 5.1 AR Interest Level: MG AR Points: 9 AR Quiz: 153635EN Reading Counts Level: 4.5 Reading Counts Points: 15 Lexile Measure: 730.