Reading Metrics
Grade Level
Middle Grades (MG 4-8)
Book Level
4.9
Points
8.0
Fiction/Nonfiction
Fiction
Word Count
52701
Points per Word
0.000152
Description
It is the summer of his twelfth birthday, and Davey, his sister Kate and his twin cousins join the hoards of tourists eager to catch a glimpse of the legendary underground city in Davey's hometown. For Davey it is the start of a nightmare.