Reading Metrics
Grade Level
Middle Grades (MG 4-8)
Book Level
5.4
Points
13.0
Fiction/Nonfiction
Fiction
Word Count
81382
Points per Word
0.00016
Page Count
403
Points per Page
0.032258
Description
Leo discovers clues to his past when he finds a series of tunnels below his school. To unlock the answers, he'll need every skill and invention he has--even if his inventions don't always work. Text contains violence, bullying and criminal activity.