⭐⭐⭐⭐⭐ · For Kids Who Think Differently · Ages 9+
The Space Adventure Made for the Kid Who Never Quite Fits In.
Real Mars science. Real laughs. And a story every kid who's ever felt out of place needs to read.
The series that gets kids off screens... and onto Mars.
BOOK 1 OF 5 · RISE OF THE EXPLORERS
His Inventions Explode. His Teachers Call Him a Disaster. Turns Out... That's Exactly What Mars Needs.
Marsus is the strangest kid on Zyphora (that’s Mars, to humans). Everyone agrees… he’s a lot.
But when a human spaceship crash-lands in his backyard? Suddenly, “a lot” is exactly what the mission needs. Because somehow, through fate, bad decisions, and truly terrible planning, this crew comes together:
An awkward alien with a dream bigger than his planet.
Two Earth kids who definitely were not supposed to steal a spaceship.
An ancient NASA rover with a sarcasm setting stuck on “mildly rude.”
And a hyperactive, color-changing puffball with zero respect for personal space.
Their mission? Bring Mars back to life!
There’s just one problem. Another rover was already there. And Spirit isn’t exactly happy to see them.
Packed with real Mars science, big laughs, and a whole lot of heart, this is a story about the kids who don’t fit in…and why they might be the ones who change everything.
Parents Keep Telling Us the Same Three Things.
WHY MARSUS UNIVERSE
It Got Them Off Screens. Without a Single Argument.
"My son got in trouble at bedtime because he just couldn't stop reading. He never reads fiction. This was both educational AND full of fun!"
— Amazon Mom, ⭐⭐⭐⭐⭐
Real Science. Real Fun.
Every adventure is grounded in actual Mars science: terraforming, rovers, Martian geography. Kids absorb real STEM concepts without ever realizing they're learning.
(Sneaky, right? 😏)
Made for the Kid Who Thinks Differently.
Some kids’ brains run three galaxies ahead of everyone else. Never quite fit in. Marsus Universe was made for them. To remind them of one simple truth:
Different isn’t a flaw. It’s a superpower.
They Bought It for Their Kid. Then They Couldn't Put It Down Either.
WHAT PARENTS ARE SAYING
"Don't Buy It. You Won't Be Able to Put It Down! IT’S ADDICTIVE.”
— NICOLAS, AGE 12 · ⭐⭐⭐⭐⭐ VERIFIED AMAZON READER
THE WEIRDEST CREW IN THE GALAXY
You're About to Have Some Very New Favorite Characters.
Join the Crew!
Your first transmission is waiting.
Get the first chapter of Rise of the Explorers FREE... plus Oppy's sarcastic space facts, Blorp's emotional color reports, and exclusive sneak peeks at what's coming next in the Marsus Universe.
No spam. Just space stuff. Blorp insists.
Marsus was born in 1998. So was his mission.
THE STORY BEHIND THE STORY
Before he was a universe, a book series, or a brand... Marsus was a doodle.
It was 1998. Before SpaceX, before Wi-Fi, back when the internet screamed like a dying robot every time you tried to connect. A mom, a creative rebel, and a woman with very strong opinions about aliens, was running a small printing company when inspiration struck.
Mainly, she thought aliens were ugly.
So she did what creative rebels do best: she made her own...
The drawing became an illustration, a book, a live show and a very famous green alien. But then life happened. Cancer arrived like a storm no one saw coming. She fought it with everything she had... and won. But the financial weight of two years of illness grounded her Marsus dream. The show stopped. The laughter faded.
Marsus returned to his planet.
And for decades, he waited. A small green spark of unfinished magic, tucked quietly into the background of her life.
“My mom's dream never faded...it was just waiting for its right time to shine.”
-Julie St-Louis, Author & Founder
MEET THE CREATOR
SpaceX Builds the Rockets. JULIE Builds the Kids Who Will Fly Them.
Julie St-Louis is a lot of things. A stunt woman, storyteller, entrepreneur, and unapologetic space nerd.
But above everything else, she is on a mission. Not the kind that launches rockets. The kind that prepares the next generation to board them. Because the first humans to set foot on Mars are alive right now. Sitting in classrooms. Staring out windows. Thinking three galaxies ahead. Too often, they are told they think too much. That they are “a lot.”
Julie is here to tell them something different: Humanity’s future needs them!
She spent a decade as a professional stuntwoman in the film industry, where she learned how to capture attention, create emotion, and tell powerful stories in seconds. That instinct now lives in every page she writes.
With over fifteen years as an entrepreneur, she learned by doing, failing, and building again. The underdog-to-hero arc is not just Marsus’s story. It is hers too.
One evening, flying above her home, she watched a SpaceX Falcon 9 streak across the sky and disappear into orbit. It made her wonder:
When today’s pioneers are gone, who carries the mission forward?
The answer was already out there.
Seating in classrooms. Staring out windows.
So she built Marsus. A new story. A new universe. A platform to inspire the next generation of scientists, engineers, and space explorers. Two years in the making. Built from the ground up. For her, its much more than just a book series.
Its her life’s mission.
Julie is laying a brick in the foundation of a multi-planetary future.
And she is just getting started. 🚀
The future of humanity doesn't begin with a rocket. It begins with a kid who dares to believe the impossible is worth attempting."
— Julie St-Louis, Author & Founder of the Marsus Universe
The First Major Children's Sci-Fi Franchise of the Space Era.
THIS IS BIGGER THAN A BOOK
The cultural reach of Harry Potter. The commercial longevity of Pokémon. Built for the generation that will actually go to Mars.
interested in partnering with us?
We’re building the next generation of children’s IP. If your an investor, studio or licensing partner who see what this could become, we’d like to talk!
FREE · NO SPAM· JUST SPACE STUFF
Join the crew and receive the first chapter of Rise of the Explorers FREE plus space facts from Oppy, emotional colour reports from Blorp, and exclusive sneak peeks at what's coming next in the Marsus Universe.
