THE HIGH SCHOOL ASSASSIN: ZERO SUM In the heart of Ohio, the most dangerous variable isn't the Russian hitman at the door. It's the sixteen-year-old boy sitting in the back of Calculus. Mateo Morales is a ghost. Two years ago, he was a street-level prodigy for a Thai syndicate, trained by a monk to see the world as a series of kinetic equations and lethal trajectories. But after a high-stakes hijacking left him as one of the survivors of a plane crash in the Pacific, Mateo traded his Karambit for a backpack, seeking a "Clean Slate" in the quiet suburbs of Northfield, Ohio. But you can't subtract the past. When a leaked ledger from the Virote Syndicate surfaces, Mateo finds himself back in the crosshairs. The Syndicate doesn't just want the data; they want the boy who knows how to use it. To flush him out, they send Varkas-the Ghost of Siberia-a legendary "Eraser" who hasn't missed a target in two decades. The mission is simple: Retrieve the ledger. Erase the witness. Zero out the town. But Varkas didn't account for Lia Manthis. She's the daughter of Mateo's physics teacher, a coding genius with a defiant streak and the only person who sees through Mateo's "quiet student" mask. When the Syndicate targets her family as leverage, Mateo stops running. Now, the halls of Center Ville High are no longer a place of learning-they're a pressurized kill-box. Armed with nothing but advanced chemistry, the laws of physics, and a lethal "Stillness," Mateo must protect the girl he's falling for while dismantling a professional army. The math is simple: One prodigy. One assassin. Only one remainder. ABOUT THE AUTHOR Mo. Khatri is an electrical engineer and inventor who brings a unique, scientific precision to the world of YA thrillers. The father of four and a resident of Ohio, Khatri's writing is fueled by a passion for physics, engineering, and the "Calculated Instinct" of a hero who wins with his mind as much as his hands. He is the author of The Steel Architect and the popular Chubby Series.
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