AR Book Level
4.5
AR Points
6
Word Count
43,757
Interest Level
Middle Grades (MG 4-8)
Genre
Fiction
AR Quiz #
509753 EN
About this book
Riley Green invents a lie detector pen, hoping to improve her status at her Washington, D.C. school. After someone steals Riley's idea, her favorite teacher entrusts her with Nikola Tesla's lost notebook and then goes missing.