The spine of the book was unnervingly thin, bound in a matte black cover that seemed to absorb the library’s fluorescent light. It had no title, only a gold-embossed Riemann Zeta function on the front.
Leo, a high school senior who had already devoured every Putnam prep book in existence, found it tucked behind a dusty volume of Russian topology. When he opened it, there was no "Introduction" or "About the Author." The first page simply read: “To find the truth, one must first lose the solution.” Advanced book on Mathematics Olympiad
The problems inside were unlike anything he’d seen at the IMO (International Mathematical Olympiad). They didn’t just ask for a proof; they asked for a perspective. The spine of the book was unnervingly thin,