Feyre returns to the Spring Court on a reconaissance mission about the invading king. As a spy, the future of the entire kingdom may rely on her ability to play her part perfectly, and her decisions about who to trust and which allies are best will decide the outcome of the coming war.

"Nesta Archeron has always been prickly-proud, swift to anger, and slow to forgive. And ever since being forced into the Cauldron and becoming High Fae against her will, she's struggled to find a place for herself within the strange, deadly world she inhabits. Worse, she can't seem to move past the horrors of the war with Hybern and all she lost in it. The one person who ignites her temper more than any other is Cassian, the battle-scarred warrior...

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.

Thirteen-year-old spy in training Ben Ripley is sent to Mexico to try to thwart the evil organization, SPYDER--the CIA's main enemy.

This swashbuckling epic chronicles the adventures of d'Artagnan, a brash young man from the countryside who journeys to Paris in 1625 hoping to become a musketeer and guard to King Louis XIII. Before long he finds treachery and court intrigue -- and also three boon companions: the daring swordsmen Athos, Porthos, and Aramis. Together they strive heroically to defend the honor of their queen against the powerful Cardinal Richelieu and the seductive...

"Follows the spies-in-training on a hunt to find the leader of the evil organization SPYDER and take them down once and for all"--

Sara Martinez is a hacker. She recently broke into the New York City juvenile justice system to expose her foster parents as cheats and lawbreakers. However, instead of being hailed as a hero, she finds herself facing years in a juvenile detention facility and banned from using computers. Enter Mother, a British spy who not only gets sara released from jail but also offers her a chence to make a home for herself withing a secret team of your MI6 agents....

Twelve-year-old Ben's unexpected success outside the classroom causes the CIA to activate him for a mission to become friends with Jessica Shang, daughter of a suspected Chinese crime boss.

Barbie and her friends become secret agents who help find a gem thief.

Having read all the Nancy Drew stories, and having heard a Russian spy has infiltrated her small town, young Hazel Kaplansky decides that she can stop the Russian's plans--especially now that a cute boy named Samuel has moved into her town as well, who seems to share her love for sleuthing.