Twelve-year-old Mateo stumbles upon an ancient parchment in Castle Elarion, setting him on a thrilling Budget Treasure Hunt. Each hidden chest across the royal grounds demands a different coin cost—copper, silver, or brass—and each riddle teaches him budgeting basics: tallying totals, trading coins, and prioritizing wants over needs. Along the way, Mateo earns, borrows, and even finds windfalls, facing real-world lessons in saving, spending, and delayed gratification. By balancing immediate delights with long-term gains, he fills his ledger—and his heart—with triumph. Young readers will be captivated by this fun, comical quest that turns financial fundamentals into an epic adventure.