Book Series · 6 Books

Secret Coders Books

In order from Secret Coders to Monsters & Modules.

A completed graphic-novel mystery in which three students use logic, coding, and teamwork to uncover the secrets hidden inside their unusual school.

Reviewed by the Bookroo Editors Updated

Secret Coders
Paths & Portals
Secrets & Sequences
Robots & Repeats
Potions & Parameters
Reading order

How to Read the Secret Coders Books

Read all six books in numbered order. The school mystery continues from volume to volume, and the coding ideas build from simple instructions and sequences toward more complex problem-solving.

Readers are invited to pause and solve visual coding puzzles with the characters, but no previous programming experience is needed. The sixth book completes the story.

Sources: Macmillan's official Secret Coders series page.

For parents

What Parents Should Know

The mystery includes bullying, an intimidating school environment, sinister adults, robots, monsters, capture, and frequent comic-book peril. The action is suspenseful but not graphic.

Coding is taught through story problems and visual explanations rather than textbook lessons. Persistence, collaboration, and learning from mistakes are as important as getting the right answer.

Where the story begins

First Book in the Series

Secret Coders
Graphic Nov.
Sale price
$1049
Book #1 · Chapter Book · Ages 8–11 · 2015

Secret Coders

By Gene Luen Yang, Mike Holmes (Illustrator)

A new student uncovers secrets and unexpected friendships at their school.

88 pages· 5,114 words· Est. 57 min read
$10.99Save 5%
Paperback
Summary: At Stately Academy, mysteries abound. Hopper and Eni, armed with coding skills and sharp minds, dive into a world of puzzles left by the school's enigmatic founder. As they unravel each clue, the stakes rise. Can they solve the academy's secrets before it's too late? This thrilling adventure blends logic, programming, and mystery, challenging young minds to think outside the box. Join Hopper and Eni on a journey where every answer leads to more questions, and the truth is just a code away.
In reading order

Secret Coders Series

6 books · Published 2015–2018

#1
Secret Coders
#1 in Series
Graphic Nov.
Sale price
$1049

Secret Coders

Chapter Book · Ages 8–11 · 2015

A new student uncovers secrets and unexpected friendships at their school.

#2
Paths & Portals
#2 in Series
Graphic Nov.
Sale price
$1049

Paths & Portals

Chapter Book · Ages 8–11 · 2016

A group of students discover a hidden underground classroom and learn to code from a mysterious teacher.

#3
Secrets & Sequences
#3 in Series
Graphic Nov.
Sale price
$1049

Secrets & Sequences

Chapter Book · Ages 8–12 · 2017

Young coders uncover secrets at a mysterious academy, pursued by a sinister principal and a genius mastermind.

#4
Robots & Repeats
#4 in Series
Graphic Nov.
Sale price
$1049

Robots & Repeats

Chapter Book · Ages 8–12 · 2017

A dangerous class, a missing dad, and a mysterious clue. Can the Coders solve it?

#5
Potions & Parameters
#5 in Series
Graphic Nov.
Sale price
$1049

Potions & Parameters

Chapter Book · Ages 8–12 · 2018

Can coding skills save the world from a villain's toxic potion?

#6
Monsters & Modules
#6 in Series
Graphic Nov.
Sale price
$1099

Monsters & Modules

Chapter Book · Ages 8–11 · 2018

A group of friends use coding skills to solve problems in a fantasy world.

Good to know

Common Questions

How many books are in the Secret Coders series?

There are 6 books in the Secret Coders series. It began with Secret Coders in 2015, and the newest book, Monsters & Modules, was published in 2018.

What order should you read the Secret Coders books in?

Start with Secret Coders and follow the series order — the books above are numbered #1 through #6.

What ages are the Secret Coders books best for?

The series is best for ages 8–12, based on the age ranges of the individual books.

Which Secret Coders book is the longest?

Paths & Portals (Book #2) is the longest book in the series at 6,048 words (92 pages).

Which Secret Coders book is the shortest?

Monsters & Modules (Book #6) is the shortest at 1,998 words (101 pages).

The people

The Creatives Behind the Books

The people who bring Secret Coders to life.

01

Gene Luen Yang

Author
02

Mike Holmes

Illustrator

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