Reading Metrics
Grade Level
Middle Grades (MG 4-8)
Book Level
5.2
Points
5.0
Fiction/Nonfiction
Fiction
Word Count
34673
Points per Word
0.000144
Page Count
153
Points per Page
0.03268
Series
Hardy Boys Casefiles
Description
Alvin, the leader of a salvage crew, vanishes without a trace as he works on an operation to explore Nazi-U submarines; and Frank and Joe vow to rescue him.