
About
Ellie Ment
Learn about Book 1 & Wider Series
Fact File (Book 1):
-
Pages: ~320 (depending on edition)
-
Words: ~70,000
-
Author: Bertie Stephens
-
Editor: Lil Chase
-
Publisher: The Clean Planet Foundation
-
Foreword: Stanley Johnson (exits page)
-
Cover Art: Farras Raihan
-
Chapter Art: Milena Vieira
-
Target Audience: Middle-grade readers (9–14 years), STEM-curious, environmentally-minded young readers, plus their parents too!
-
Series? Yes - Six book series, plus companion books.
-
First Book: Ellie Ment and the Material Matter


Key Themes
STEM
Adventure
Introduces children to real scientific concepts (elements, compounds, chemical reactions, quantum superposition) through thrilling, accessible storytelling.
Friendship and Teamwork
Ellie and Michael's frienship highlights the importance of diverse talents—science and art, logic and creativity—working together toward a bigger goal. There isn’t just one type of ‘smart’.
The
Environment
Tackles real-world issues like microplastic pollution, unsustainable industry practices, and the importance of circularity.
Courage and Curiosity
The bravery to ask questions, experiment, and stand up for what’s right underpins Ellie’s journey.
Youth Empowerment
Ellie symbolises the next generation challenging the old way of doing things. The story explores the frustration and hope young people experience when confronting adult compromise.
"Edutainment at its Finest"
Chris Riches and the Daily Express says it the best... "Edutainment at its finest - exciting, funny and impossible to put down!"
Book Overview
Ellie Ment and the Material Matter is an energetic, STEM-driven fantasy adventure that fuses real science with fast-paced storytelling and environmental themes. Magic isn’t science, but science is magic.
The story follows 11-year-old Ellie Ment, a fiercely curious and resourceful science whizz, whose life is upended when she witnesses her school burn down in mysterious purple flames. Shortly after, her favourite teacher—Professor Fialova—entrusts her with a secret pair of Elemental Bracers: scientifically engineered wrist devices that allow the user to summon, manipulate, and interact with elements such as Oxygen, Carbon, Hydrogen, and more.
But Ellie soon discovers that her gift is part of a much larger mystery. As she learns to master her new skills, she becomes embroiled in a hidden world where environmental threats, corporate secrets, and scientific wonders collide. Along the way, she’s joined by her inventive best friend Michael Upperton, a passionate upcycler and musician, who must find his own way to contribute, even without the Bracers.
Through humour, daring experiments, quantum echoes, and thrilling missions, Ellie must navigate the tension between the idealism of youth and the pragmatism of adults—and figure out whether real change is possible when the world seems stacked against her.
Tone and Narrative Style
-
Playful, witty, and self-aware.
-
The narrator often breaks the fourth wall with cheeky asides, drawing the reader deeper into the adventure.
-
The tone balances humour and high-stakes tension, keeping younger readers excited while introducing meaningful messages.
-
Ellie’s failures, experiments, and messy victories are relatable and inspiring for a generation taught that progress is built on persistence.
Scientific and Educational Foundations
-
The Elemental Bracers are grounded in real atomic theory and chemical science.
-
Concepts such as compounds, states of matter, reaction chains, the conservation of mass, and quantum mechanics (especially quantum superposition and the observer effect) are woven into the story naturally.
-
Ellie Ment makes science fun, magical, and powerful—without distorting the real-world possibilities of STEM.
About the Ellie Ment Series
Ellie Ment and the Material Matter is the first of a planned 6-book series + companion books.
Timeline:
December '25
Can't wait until the next book?
Ellie Ment originates from the HAPSIE comic universe.
To enjoy the books NO prior knowledge of the comics is needed.
The book is NOT part of the comic’s canon and works as a standalone story.
HAPSIE, also published by the Clean Planet Foundation, is an online and print comic series which delivers endless HAPSINESS to young people and grown-ups alike.
HAPSIE is built to amuse 🤣, amaze 😮, but most importantly, educate 🎓; a key focus is on the impact of the plastic and climate crises.
More to be announced!
2
June '26
Ellie Ment Book (#2)
1.5
1st Companion Novella (#1.5)
2.5
December '26
2nd Companion Book (#2.5)

June '25
Ellie Ment and the Material Matter (#1)

...Or why not Stay updated
(future books, news and more)

More than just a book series, this is a universe of science, adventure, and imagination. Experience it through music with The Ellie Ment Overture, an original orchestral score composed by Joe Hogan—capturing the spirit, emotion, and momentum of Ellie’s journey.
