In this third “thrilling” (Kirkus Reviews) installment in the New York Times bestselling series from Edgar Award winner James Ponti, the young group of spies help a fellow agent in another international adventure perfect for fans of Spy School and Mrs. Smith’s Spy School for Girls. After taking down a mole within their organization, the City Spies are ready for their next mission—once again using their unique skills and ability to infiltrate places adults can’t.
