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A Pharmaceutical Conspiracy Thriller

"A must-read medical thriller about the thin line between innovation and exploitation." –BestThrillers.com (click to read full review)
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About A. B. Acharya
A.B. Acharya is a neurologist and writer based in St. Louis, Missouri. Specializing in migraine headaches, he has spent years learning to listen carefully, find patterns in unlikely places, and take people's stories seriously. Those same instincts, it turns out, make for decent fiction.
His debut novel, Red Sky, was born during the pandemic, when long hours at home finally gave him the space to turn a decade of ideas into a narrative. The spark was the sudden medical interest in psychedelics as therapeutics, which got him wondering what would happen if an obsessed scientist tried to transform a deadly street drug into a pharmaceutical everyone would want to take. Things go sideways very quickly.
The novel draws on his deep familiarity with neuropharmacology, the seductive logic of scientific obsession, and what happens when brilliant people convince themselves the rules don't apply to them.
He is currently writing the second book in the Juggernaut Series, set twenty-four years later, exploring how advances in AI and robotics are reshaping the future of work and warfare.
Born to Bengali parents from Kolkata, he came to neurology via nineteenth-century Russian literature, a roundabout path he has never fully explained. He practices alongside his wife, also a neurologist, who has been his most valuable editor and the reason the book exists at all. When he is not seeing patients or writing, he runs, plays guitar, and rereads War and Peace with an enthusiasm his family finds puzzling. He writes about medicine, neurology, and the occasional existential rabbit hole on Substack.


About Red Sky

He came to fix the world's most dangerous drug. The drug had other plans.
​Narin Roy is writing his confession in a police interrogation room, and the only thing keeping him calm is the drug that started it all.
Months earlier, he was a disgraced scientist with one shot left: a job at Harvester Pharmaceuticals, developing a therapeutic version of DMTA, the compound behind Red Sky, the street drug that can make you brilliant but occasionally turns you into a killer. Narin has a secret weapon: a formula on a flash drive that could crack the problem no one else has solved. All he has to do is survive Harvester long enough to use it.
But Harvester is not what it appears. Behind its gleaming façade, Narin finds himself caught between a charismatic lawyer whose charm conceals a ruthless agenda, an embittered scientist who built the company and may be destroying it, and a project so classified that its true purpose makes his blood run cold. Meanwhile, a mysterious figure haunts his dreams, a desert prince who trains him for a battle he doesn't yet understand.
As the weeks pass, Narin can't tell anymore where the science ends and his unraveling begins. The voices may be hallucinations. The visions may be warnings. And the confession he's writing, the one that brought him to this cold interrogation room, may not end the way anyone expects.
Red Sky is a propulsive psychological thriller for readers who like their conspiracies dark, their narrators unreliable, and their endings earned.
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Red Sky is a gripping psychological thriller about ambition, obsession, and the devastating cost of chasing perfection when human lives are at stake.


The Juggernaut Trilogy explores a near-future in which humanity unlocks powers to control the world.
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As advances in biotechnology, artificial intelligence, and medicine accelerate, the trilogy asks: What happens when our technological prowess grants us powers before we have the wisdom and ethical framework to wield them for humanity's benefit?