School Library Journal starred review
“A must-purchase for middle grade collections. A lively, genre-blending mystery that will appeal to readers who enjoy historical intrigue, clever puzzles, and a strong-willed heroine.”

Kirkus Reviews
“An adventure in the vein of Varian Johnson’s The Parker Inheritance and Ruta Sepetys and Steve Sheinkin’s The Bletchley Riddle.” and “Fun and engaging historical intrigue.”

#America250: Spotlight Philadelphia (May 22, 2026)

A Café Chat with Historical Fiction Author Jennifer Robin Barr by Andrea Denish (May 6, 2026)