Reading Metrics
Grade Level
Middle Grades (MG 4-8)
Book Level
4.9
Points
5.0
Fiction/Nonfiction
Fiction
Word Count
32970
Points per Word
0.000152
Page Count
175
Points per Page
0.028571
Series
Hardy Boys Mystery Stories
Description
What started out as a vacation in Germany has turned into a fascinating mystery! The former title of this was The Submarine Caper. Book #68.