The 39 Clues

The 39 Clues

book

2008, Children's Books, Literature & Fiction

WISE
84%

WISE Score

4.6

Amazon

Dan Brown for tweens: orphaned siblings race relatives around the world hunting clues that reveal their family's secret power.

Amazon4.6
Common Sense Media

Where to Read

Amazon
Amazon
Barnes & Noble
Barnes & Noble
Libby
Libby

Our reviews and ratings are 100% unbiased, but as an Amazon Associate, Screenwise earns an affiliate fee if you buy a book or game by clicking one of our links. We don't get any credit if you just Google it instead :)

Screenwise Verdict

This is the series that got a generation of kids hooked on reading in the late 2000s, and it holds up. The premise is genuinely clever—a global scavenger hunt through history with real stakes and sibling protagonists you actually root for.

The educational value is real but never preachy. Kids absorb facts about Mozart's life, the fall of the Romanovs, and Benjamin Franklin's inventions because they're integral to solving the mystery, not because there's a lesson plan attached. Parent reviews consistently praise this aspect, and the 4.6 Amazon rating reflects broad satisfaction.

The violence is adventure-genre standard—think National Treasure or Indiana Jones for kids. There are explosions, chases, and moments of danger, but nothing gratuitous or traumatizing. The 9+ recommendation from parents feels right, though confident 8-year-olds will be fine.

The series is 15+ years old now, but unlike some middle-grade series from that era, it doesn't feel painfully dated. The globe-trotting adventure, historical intrigue, and family mystery formula is timeless enough that today's kids still get pulled in. If your kid starts Book 1 and likes it, congratulations—you've just bought yourself months of engaged reading time.

Age Fit

Best for ages 8-13, particularly strong for 9-12 year olds who love adventure and mystery. The reading level is accessible for third graders, but the plot complexity and historical depth will keep middle schoolers engaged. Teens will likely age out unless they're nostalgic completists.

WISE Breakdown
Wholesome
78

Adventure-driven sibling teamwork with positive family dynamics. Amy and Dan work together to solve puzzles and uncover their family history. Some violence (chases, dangerous situations) but parent reviews confirm it's not overbearing. The competitive treasure hunt premise could model some less-than-ideal behavior between family branches, but core protagonists demonstrate cooperation and loyalty.

Imaginative
85

Global treasure hunt spanning history from Napoleon to Houdini invites curiosity and problem-solving. The multi-book structure with hidden clues and historical connections encourages active engagement. The premise itself—39 clues hidden worldwide revealing family secrets—is creative and expansive. Kids are invited to think geographically and historically while following the mystery.

Safe
82

Parent reviews confirm violence level is suitable for ages 9+. No inappropriate content for the target age range. Some peril and danger inherent to adventure genre (characters in chases, life-threatening situations) but age-appropriate and expected. The death of the grandmother Grace Cahill at the start and the mystery of what happened to the parents' deaths are present but handled appropriately for middle-grade readers.

Enriching
88

Significant educational value confirmed by multiple parent reviews. Kids learn history, geography, art, and culture through the global treasure hunt. The series weaves real historical figures and events into the mystery, making learning feel organic rather than didactic. Problem-solving and critical thinking are central to the plot. Amazon rating of 4.6 and widespread parent praise for educational content support this.

Parent Info
✓

Why It Might Be Great

  • Sneaks history, geography, and art into a page-turning treasure hunt—kids learn about Benjamin Franklin, Mozart, and world landmarks without realizing they're being educated
  • Strong sibling partnership models teamwork and loyalty, with 14-year-old Amy and 11-year-old Dan solving problems together
  • Part of a massive 11-book series (with spinoffs) that keeps reluctant readers hooked—if your kid bites, you've got months of reading material
  • Rick Riordan (Percy Jackson) launched it, bringing his knack for making mythology and history feel urgent and cool
  • The choose-between-a-million-dollars-or-a-clue premise is genuinely compelling and sparks great ethical conversations
⚠

What to Watch For

  • Action includes chases, explosions, and characters in peril—think Indiana Jones lite, appropriate for 9+ but maybe intense for sensitive younger kids
  • The grandmother dies at the start (natural causes, sets up the will) and the mystery of the parents' deaths hangs over the story
  • Competitive family dynamics show relatives sabotaging each other for clues—good opportunity to discuss ethics vs. winning at all costs
  • Originally had a now-defunct online game component with collectible cards—some kids may be disappointed that interactive element is gone

Conversation Starters

  • "If you had to choose between a million dollars right now or a clue that might lead to something way bigger, what would you pick? Why?"
  • "Amy and Dan's relatives are literally trying to beat them (and sometimes hurt them) to get the clues. When does competition go too far?"
  • "The books connect real historical figures like Benjamin Franklin to this fictional family. If you could be related to any historical figure, who would it be?"
  • "Dan is the bold, impulsive one while Amy is anxious but smart. How do their different strengths help them work together?"

Ask Anything

Get a personalized guide on any topic

Writing about The 39 Clues? Put this WISE score on your site