George Smiley, an agent at the very highest level of British Intelligence, enters the twilight world of espionage and his own past when he is assigned to discover which of his four closest colleagues is a double agent.

"Ben Ripley is recruited for a magnet school with a focus on science--but he's entirely shocked to discover that the school is actually a front for a junior C.I.A. academy. Ben becomes an undercover agent and goes on his first assignment in this graphic novel adaptation of SPY SCHOOL"-- Twelve-year-old Ben Ripley leaves his public middle school to attend the CIA's highly secretive Espionage Academy, which everyone is told is an elite science school....

While working with the Australian Secret Service on a dangerous mission, teenaged spy Alex Rider uncovers information about his parents.

Sam McCready serves Britain as Chief of Covert Operations for the Secret Intelligence Service. He's competent, dedicated, in his prime. Why then this push to get him out? The options are painful -- early retirement or an administrative backwater. But he has one other option: it's a wild card, confrontational, risky. Risky because McCready knows too much. He senses the move is more about destabilizing SIS than settling a score with him. Who wants him...

While trying out the spy glasses, spy hat, and other items in their new spy kit, seven-year-old Henry and his dog Mudge make a new friend and form a spy club.

Frank and Joe attempt to foil a ruthless espionage ring in their effort to sabotage the United States space program.

In 1940, eighteen-year old Juliet Armstrong is reluctantly recruited into the world of espionage. Sent to an obscure department of MI5 tasked with monitoring the comings and goings of British Fascist sympathizers, she discovers the work to be by turns both tedious and terrifying. But after the war has ended, she presumes the events of those years have been relegated to the past forever. Ten years later, now a radio producer at the BBC, Juliet is unexpectedly...

Spy stories from a variety of authors known for their adventure / thriller fiction.

George Smiley, retired from the world of spies and treachery, is summoned by an old friend to help with a small problem: at the exclusive school where Smiley's friend teaches it seems there's been a murder. Frightfully embarrassing, of course. Perhaps George could quietly look into the matter? Once more, Smiley is up to his elbows in spies and treachery, of a different sort.

After the death of the uncle who had been his guardian, fourteen-year-old Alex Rider is coerced to continue his uncle's dangerous work for Britain's intelligence agency, MI6.