Meet Ruby Starling, a fourth-grade detective with a knack for mysteries, a notebook full of clues, and a loyal sidekick: her beagle, Sherlock!

When Willow Creek Elementary's beloved mascot, Rocky the Raccoon, suddenly goes missing, Ruby and Sherlock spring into action. But what starts as a search for a costume turns into a trail of mysterious clues, hidden messages, and long-lost school secrets.

With her best friend Ella and her faithful sidekick Sherlock the Beagle by her side, Ruby follows a series of cryptic stars that lead her through the school's hidden history, revealing the true spirit of Willow Creek along the way. Together, the Starling Sleuths uncover more than they bargained for, and Ruby learns that being a detective is about more than just solving puzzles—it's about finding pride in the past and keeping school spirit alive.

Can Ruby solve the mystery in time to bring Rocky back before sports day? And who's leaving her these clues? Join Ruby, Ella, and Sherlock in The Case of the Missing Mascot—a fun, heartwarming mystery that's just the beginning for the Starling Sleuths!