"A page-turning mystery with nuggets of wisdom along the way - highly recommended for young readers!" - Laura, teacher
 
"This was my favorite Waldameer mystery so far! Great story." - Amazon reviewer
 
Summary: When Julia orders ice cream at Waldameer, she doesn’t expect to find a ruby on top. She’s shocked to learn it’s part of a stolen collection worth $12 million. Julia and her friends race to locate the six remaining jewels, turning the concession stands upside down. The pressure is on as Julia confronts her biggest mystery yet without her big brother. Time is ticking because the dangerous thieves who stole the jewels are coming to claim their lost loot. Can the detectives outwit the thieves before it’s too late? Does Julia have what it takes to lead the team? Find out in this exciting all-girls mystery about believing in yourself!
 
Ages: 8-12
Themes: Self-confidence, leadership
Featured Ride: Concession stands
 
About the Series: The Waldameer Mystery Files children's book series, set at Waldameer & Water World in Erie, Pennsylvania, was written with teachers in mind. The children's books teach empathy and diversity by including multicultural characters and immigrant characters who are learning English.