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Eternity Code

Eoin Colfer

Cover of Eternity Code

Eternity Code

Age Rating, Reading Level & Content Guide

by Eoin Colfer

Artemis Fowl

Reading Level 4-5 9LP Ages 9-12 Balanced Read

The text is written at a 4th grade reading level, the subject matter is intended for middle graders (ages 9–12), and the content is mild with minimal sensitive material.

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About This Book

When Artemis invents a tiny but mighty computer using magical fairy tech, it falls into the hands of a wicked businessman. Artemis, Juliet, Mulch, and their fairy friends team up on a thrilling quest to get it back before it’s too late. Packed with adventure and clever gadgets, this story keeps readers on the edge of their seats!

Quick Assessment

This is a Level 4-5 book with mild content intensity. Content themes include mild peril. Written for readers ages 9-12.

Why we rated Eternity Code 9LP

Eternity Code is written at a Level 4-5 reading level (approximately 19,794 words). Strong independent readers around grade 5.1 can typically handle this book on their own; with parent or teacher support, Eternity Code works for readers up to grade 6.1.

Read aloud, Eternity Code runs about 2.2 hours — long enough to span several bedtime sessions.

We rate Eternity Code as 9LP ("Light — Physical") because the content sits in the "Mild" range — mild conflict — the kind a child encounters in normal play and sibling life. Across our four dimensions (emotional, physical, social, thematic) the book reads as evenly mild; no single dimension stands out as a concern.

Specific content flags noted by reviewers: Mild Peril.

Thematically, Eternity Code explores adventure, fantasy world-building, friendship, and science & nature — these threads give the book room to mean different things to different readers.

Good fit for

  • Children in the Ages 9-12 range — the maturity and attention span match the story's pacing.
  • Readers who like a steady plot with enough momentum to keep pages turning.
  • Kids drawn to stories about adventure, fantasy world-building, friendship.
  • Readers who fall hard for one book and want a long series to live in — there are 8 more books in the Artemis Fowl series.

Maybe not for

  • ! Readers looking for something heavier — this is a gentle, low-stakes story by design.

For Parents

Content Intensity

9LP — Light — Physical
Emotional
Clear
Physical
Light
Social
Clear
Thematic
Clear

Light conflict or tension. Mild peril resolved quickly.

Content Flags

Mild Peril
Data confidence: standard

Was our "Mild" content intensity rating accurate for this book?

Reading Insights

Hook Factor

5/10

Engaging read with solid pacing and interesting themes.

Discussion Potential

1/10

A lighter read — great for independent enjoyment.

Book DNA

Multi-dimensional content fingerprint

Vocabulary Level
3
Emotional Weight
4
Theme Richness
5
World Scope
10
Data Confidence
6

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Details

Book Length

19,794 words
2h 12m read-aloud
ISBN
9781423145776
Publisher
Hyperion Book CH
Published
2013-07-09
Type
Fiction
Word Count
19,794
Read-Aloud
~2h 12m

Subjects

Reading Level-Grade 5Reading Level-Grade 4Reading Level-Grade 7Reading Level-Grade 6Reading Level-Grade 8Adventure and AdventurersFairiesMagicComputersLarge Type BooksMagieRomans, Nouvelles, Etc. Pour La JeunesseOrdinateursCriminalsFowl, ArtemisEnglandFather-son RelationshipsFantasy FictionFather-son RelationshipAccelerated ReaderFantasyHumorous StoriesGifted ChildrenScience FictionKidnappingMothers and SonsAdventure StoriesAdventure FictionChildrenChildren's Fantasy FictionCrimeFantasy & MagicGenius

People

Holly ShortOpal KoboiFoalyDomovoi ButlerArtemis Fowl IIMulch DiggumsJulius RootTrouble KelpArtemis Fowl (Fictitious character)Artemis FowlArtemis Fowl JuniorArtemis Fowl SeniorCaptain Holly ShortDomovoy ButlerJuliet Butler

Places

Bermuda TriangleNew YorkMexicoNew JerseyLondonFranceAmericaand IrelandEnglandFowl Manor