Dickens & Rumi
Cover of THE UNBREAKABLE CODE

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THE UNBREAKABLE CODE

Jennifer Chambliss Bertman

Encrypted messages send two friends on a twisty, literary tour of San Francisco. (Ages 9 to 14)

Ages 9+Source checked

Why this age? Best suited to confident elementary and middle-grade readers; suspense, threats, and peril are moderate but generally non-graphic, with accessible themes of friendship and problem-solving. This is guidance, not a safety guarantee; reading level and family context may differ.

Quick view

At a glance

Recommended age9+

Strongest cautions

  • Frightening scenes2/5
  • Violence2/5
  • Death of a character1/5

Strongest positives

  • Creativity & curiosity5/5
  • Good role models4/5
  • Positive messages4/5

What’s in it?

Products & advertising1/5
Why this rating?

References to books and puzzles, but no harmful commercial product placement.

Death of a character1/5
Why this rating?

No significant deaths occur in the narrative.

Strong language1/5
Why this rating?

Clean, age-appropriate language throughout.

Romance1/5
Why this rating?

Focus is on friendship and puzzle-solving, not romance.

Frightening scenes2/5
Why this rating?

Some tense mystery scenes, pursuit, and peril may worry sensitive readers, but frightening content is brief and generally age-appropriate.

Violence2/5
Why this rating?

Features mild, non-graphic conflict and standard mystery-genre stakes.

What’s good in it?

Courage & resilience3/5
Why this rating?

Characters display persistence and moral bravery.

Creativity & curiosity5/5
Why this rating?

Codes, puzzles, books, scavenger hunts, and inventive investigation are central to the plot and strongly invite imaginative problem-solving.

Diverse representation2/5
Why this rating?

Includes a diverse cast of friends, though not a major focal point.

Educational value3/5
Why this rating?

Teaches logic, cipher solving, and historical trivia.

Kindness & empathy3/5
Why this rating?

Friends rely on mutual support and kindness.

Positive messages4/5
Why this rating?

Strong themes support friendship, persistence, curiosity, literacy, cooperation, and using intelligence responsibly.

Good role models4/5
Why this rating?

Protagonists are curious, ethical, and collaborative problem-solvers.

Family discussion

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Conversation starters based on this title’s published content notes.

  1. What was the most imaginative idea in the story, and what would you add to it?
  2. Which moment felt most tense or frightening? What helped the characters handle fear?
  3. Which choice in THE UNBREAKABLE CODE would you have made differently, and why?
  4. Who changed the most in THE UNBREAKABLE CODE, and what caused that change?
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These content notes are a starting point, not a guarantee. Review the evidence and use your own judgment before choosing a title.

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