Reading Metrics
Grade Level
Middle Grades (MG 4-8)
Book Level
5.5
Points
7.0
Fiction/Nonfiction
Fiction
Word Count
44538
Points per Word
0.000157
Description
In the Mexican jungle a scientific team prepares to embark on an exploration of the world's deepest sinkhole; a naturally-formed underwater shaft that no one has ever reached the bottom of. What they are about to discover could change the world forever.