In Numerian lore, the Reshebnik (the Book of Ready Solutions) was a mythical artifact whispered about in the hallways. It was said that those who possessed it could bypass any struggle, instantly summoning the correct answers without a single bead of sweat.

His teacher, Mrs. Vector, stood at the chalkboard. "Leo," she said with a kind smile, "since you finished your work so quickly yesterday, why don't you show the class how you solved the 'Three-Train Logistics' problem on page 54?"

By the end of the term, Moro and Volkova weren't his enemies anymore. They were his trainers, and the Reshebnik was just the referee.