

About
MJ Petrin was born in Biddeford, Maine, and spent his early years in the coastal town of Camp Ellis, where small-town life set the stage for big imagination. At ten, he traded quiet shores for the buzzing streets of Miami, Florida, where wandering downtown became its own kind of education—one filled with colorful characters and life lessons you won’t find in any classroom.
Music was his first love, and in his twenties, MJ hit the road with his brother in a rock band, playing clubs across the country and collecting stories along the way. These days, the amps are turned down, but that same energy shows up in his writing.
Now living just outside Baltimore, Maryland, MJ prefers a quieter pace, steering clear of social media drama and political shouting matches. Instead, he channels his creativity into writing science fiction and adventure stories, often weaving in threads from his own experiences and today’s world to keep his stories relevant, meaningful—and a little unpredictable.

MJ Petrin is passionate about weaving real-life experiences with imaginative storytelling. His unique perspective and adventurous spirit shine through on every page.
Discover the mind behind the captivating narratives. Explore the inspirations and motivations that drive MJ Petrin to create thought-provoking science fiction and adventure tales.


When a strange biochemical spreads through the small town of Bends Creek, Mississippi, residents lose the ability to judge others by their appearance. The CDC is baffled, the internet is on fire, and lives are forever changed—especially when a mysterious stranger arrives, carrying secrets that may explain it all.

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When the first Xan warrior comes for Pete’s blood, he and his alien guide Oz uncover a truth that shatters everything they thought they knew. The affliction is changing, alliances are shifting, and survival may depend on teaming up with the enemy they’ve always feared.

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Want a different Audiobook Listening Experience?
Pete, Oz, and Rialla face their hardest challenge yet when their best friend Jessica becomes the weapon of their enemy. As Cass threatens to turn Earth into a battleground for alien war, the trio must decide how far they’re willing to go to stop her—and what they’re willing to lose.

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The Enemy Within: The Affliction Book 2
Audiobook
A New Kind of Listening
Experience
Step into a world where science fiction meets the golden age of radio theater. The Enemy Within audiobook brings the story to life with a full cast of distinct voices, cinematic atmosphere, and nonstop suspense.
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Narrated by the author, MJ Petrin — who also voices the main character, Pete.
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A unique cast of AI voice actors — each portraying different characters with their own style and personality.
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Inspired by classic radio drama — immersive, character-driven storytelling that feels alive in your ears.
Sci-fi reborn as radio theater for your ears.
$9.99
Classic radio drama meets modern science fiction
The affliction is evolving, and Pete and his alien guide, Oz, are about to learn the line between friend and foe is thinner than they ever imagined. With three planets on the brink of destruction, survival depends on an alliance no one expected—and the deadliest threat may come from within.
$9.99
OTHER MJ PETRIN BOOKS

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On her eighteenth birthday, she inherits a destiny she never asked for
The war between Light and Dark has raged since the beginning of time. Now, with the Darklord Razog risen after two centuries, demons march against Fallwind.
Caught in the middle is Akara. Just days from turning eighteen, she awakens with no memory of the battle that nearly killed her and must rely on two mysterious guardians to survive. But on her birthday, she discovers the truth—she is destined to become the next Warrior of the Light.
As Fallwind burns, Akara must embrace her power, face her doubts, and decide if she is ready to protect a world on the brink of darkness.
Step into the battle of Light and Dark—order your copy of Fallwind: A Tale of Light and Dark today!
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