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The 39 Clues: Doublecross Series
Authors: Jude Watson, C. Alexander London, Jenny Goebel, Sarwat Chadda
Number of Books in Series: 4
Age Group: 8 - 12 years

Reading Level: AR Levels 4.5-5.9
GLE estimated 4.1-8.1
F&P/GRL estimated M-Q
DRA estimated 34-60
Lexile® measure 580L-830L
Companion/Related Series: list of all 39 Clues series

This series continues the story that began in 39 Clues, 39 Clues: Cahills vs. Vespers, and then 39 Clues: Unstoppable. It is best to read those series first before reading this one.

39 Clues: Doublecross Book List:

This series should be read in the correct order listed here.

Book 1: Mission Titanic
Ages 8-12. February 24, 2015.
AR: 4.5 (7.0 Points, Quiz #172670)
Lexile measure: 590L

Book 2: Mission Hindenburg
Ages 8-12. July 28, 2015.
Lexile measure: 810L

Book 3: Mission Hurricane
Ages 8-12. January 26, 2016.
AR: 5.9 (6.0 Points, Quiz #179763)
Lexile measure: 830L

Book 4: Mission Atomic
Ages 8-12. June 28, 2016.
Lexile measure: 580L

Book Sets: Sets of Up to 4 Books

Best Seller Lists:

New York Times best-seller list
Publishers Weekly best-seller list
USA Today best-seller list
Wall Street Journal best-seller list

Other Websites for Additional Information:

Official or Publisher Website for The 39 Clues: Doublecross Series
Author Website for C. Alexander London
Author Website for Jenny Goebel


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Page Last Updated: November 29, 2020

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