Reading Metrics
Grade Level
Middle Grades (MG 4-8)
Book Level
5.9
Points
1.0
Fiction/Nonfiction
Nonfiction
Word Count
3181
Points per Word
0.000314
Page Count
32
Points per Page
0.03125
Series
Underground Worlds
Description
This book takes readers on a tour through vaults, tunnels, shopping malls, and pathways built throughout the world.