For Jasmine, Erin, Willow, and Lili, the first year of middle school is shaping up to be pretty awesome. They've been selected for an A-list academic team because of their expertise in art, math, science, and history. The Jewels, as they call themselves, are already winning tournaments. But things heat up when another local team, the Atkinson Prep Rivals, threatens to steal their spotlight. To further complicate matters, a beloved ruby necklace is stolen from their school, and the Jewels must go undercover with their skills to track down the culprit. Nothing seems to be adding up--until they look to the most unlikely of suspects . . . Can the Jewels figure out why the precious ruby was stolen and find it before it's too late?