Reading Metrics
Grade Level
Middle Grades (MG 4-8)
Book Level
5.2
Points
0.5
Fiction/Nonfiction
Nonfiction
Word Count
1764
Points per Word
0.000283
Page Count
32
Points per Page
0.015625
Description
Find out how real-life spies communicated in secret. Readers get a sneak peek at real spies and the gear they used to complete their missions.