He played a spy on TV. Now he's recruiting his sons into the real-life world of international espionage—from the author of Skywatcher.

Evan Harris's experiences as a spy helped make him a star playing one on TV. When Britain's best-loved breakfast show DJ dies, only Evan knows what it has to do with a pirate radio station, a long-lost diary, a suspected double agent, the London Underground, and mysterious sound waves underneath the Fitzroy Theatre.

So Evan recruits his three sons to help him unmask the traitor deep within the British spy community in a sting operation not unlike a storyline from his own cult 1960's TV show . . .