Forbidden City
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. The sinister Umbra has their sights set on recruiting a North Korean nuclear physicist by any means necessary, and the City Spies plan to keep an eye on his son by sending Paris to the chess prodigy’s tournaments in Moscow and Beijing.
Meanwhile, Sydney’s embedded as a junior reporter for a teen lifestyle site as she follows the daughter of a British billionaire on tour with the biggest act on her father’s music label to uncover what links both the band and the billionaire have to a recent threat from an old Soviet missile base.
From a daring break-in at one of London’s most exclusive homes to a dangerous undercover mission to a desperate search and rescue operation on the streets of Beijing, the City Spies have their work cut out for them on their most dangerous mission yet.
James Ponti
James Ponti writes the kind of books that make young readers feel like they’re in on the secret—that the world is full of puzzles, hidden missions, and brilliant kids just waiting to take the lead. With his knack for weaving mystery, humor, and heart into every chapter, Ponti has carved out a special space in middle-grade fiction—one where intelligence is celebrated and friendship is just as powerful as bravery.
Long before he was writing about young spies and sleuths, Ponti was crafting stories behind the scenes of TV shows. A former screenwriter and producer, he developed his storytelling instincts in the world of children’s television, learning the rhythm of a good joke, the importance of pacing, and how to keep a young audience hooked. That training grounds his novels in a cinematic energy—quick-witted dialogue, cliffhangers in just the right places, and characters that feel like real kids, not just plot devices.
City Spies
There’s something thrilling about watching a team come together—not just any team, but one made up of kids from around the world, each with a secret past and a very particular set of skills. City Spies taps into that energy with precision, turning the idea of elite espionage on its head and handing the mission over to the most unlikely agents: teenagers.
City Spies consists of seven books and series is set to expand with the upcoming release of one more book. The current recommended reading order for the series is provided below.

