London Calling

In London Calling by James Ponti, the City Spies return for a fast, funny middle grade spy thriller that zips across Europe with all the teamwork and tradecraft readers love.

Cairo, the newest recruit, is still finding his place when his sister vanishes in Istanbul. The mission quickly turns personal, and the team follows a trail that pulls them into Rome, where every move risks exposing who they really are. At the same time, a separate stream of intelligence points to a threat surrounding a royal wedding in Westminster—meaning MI6 needs the City Spies back in London, operating under intense security and constant scrutiny.

Perfect for readers who devour action-packed adventure, international mystery, and clever kid-led capers—especially fans of Spy School, Charlie Thorne, and high-stakes London settings.

Add it to your stack and see just how quietly the City Spies can move when it matters most.