Reading Metrics
Grade Level
Middle Grades (MG 4-8)
Book Level
6.1
Points
8.0
Fiction/Nonfiction
Fiction
Word Count
52724
Points per Word
0.000152
Page Count
352
Points per Page
0.022727
Series
George's Secret Key
Description
After Annie sends George a secret message telling him she has been contacted with a terrible warning by aliens, he joins her in a galaxy-wide search for answers. The coauthor is Stephen Hawking.