Reading Metrics
Grade Level
Middle Grades (MG 4-8)
Book Level
5.3
Points
8.0
Fiction/Nonfiction
Fiction
Word Count
50310
Points per Word
0.000159
Description
During the school summer holidays, a group of school friends form a secret club based on a secret wartime group. They befriend a German ex-pilot who has returned to England with a strange mission.