Secret Agent Splat!
Splat’s father’s duck decoys keep disappearing and coming back without their beaks. Splat goes undercover.
Every child already knows the essential skill. Stand very still, keep your face ordinary, and listen to the grown-ups talk as though you were a lamp. Spy stories simply hand that instinct a code name, a notebook, and something enormous to lose — a stolen spoon, a school full of impostors, a war that turns on one false message delivered to the right general.
Drawing from Bookroo’s collection of 333 spy books, our editors chose thirteen that give young readers real tradecraft rather than sunglasses and a trench coat: surveillance that goes wrong, disguises that nearly hold, codes worth breaking, and true agents whose reports changed what happened next. Start with the fixed shortlist, then browse picture books for read-aloud missions and chapter books for readers ready to run their own operation.
Splat’s father’s duck decoys keep disappearing and coming back without their beaks. Splat goes undercover.
A villain announces he will destroy every book on earth. The world’s finest librarian goes in alone, armed with paperbacks.
James Lafayette walked into the British camp as a servant and walked out with Cornwallis’s plans.
The Queen of England telephones a boy in California. Her Crown Jewels are missing, and she would like Mac to handle it.
Harriet M. Welsch spies on her whole neighborhood and writes down exactly what she thinks — until her classmates find the notebook.
Ben Ripley is recruited to a CIA academy hidden behind a science school. He is a terrible spy and an excellent target.
A teenage hacker facing juvenile detention is instead recruited to an MI6 team of five young agents based in Scotland.
Alex Rider’s uncle dies in a car crash with fourteen bullet holes in the windscreen. MI6 would like Alex to take his place.
Four children answer a newspaper ad, pass a series of very strange tests, and are sent undercover into a school with no rules.
Nathan Hale, about to be hanged as a spy in 1776, stalls his executioner by narrating the entire Revolutionary War.
Georges’s odd new neighbor recruits him into a spy club with one target: the man in apartment 4C.
Sent alone from Berlin to London in 1939, eleven-year-old Max talks his way into British intelligence to get back to his parents.
Three simultaneous stories: building the atomic bomb, stealing it for the Soviets, and sabotaging the German effort in Norway.
Stakeouts in the backyard, disguises made of dish towels, and short true stories of real agents — missions for ages 3–8.
A dancer defies segregation, captivates Paris, and becomes a spy.
In war-torn Philadelphia, a young girl becomes a spy, risking everything for freedom.
A cryptologist unravels codes to dismantle spy rings and save lives.
A woman disguises as a man to fight and spy in the Civil War.
A boy and his dog uncover a coded message. Is another spy nearby?
A young spy's bedtime mission faces an unexpected twist.
A young spy races to thwart a plot against George Washington before it's too late.
A pig's eavesdropping reveals a birthday surprise that could change everything.
A shy orphan guards a city's secret, pursued by rogues in a mysterious building.
A spy cat uncovers a mysterious message and goes undercover to solve a case.
Can a clumsy spy uncover the secret to stealth?
Uncover the mystery of sneaky ostriches and a hidden peanut mission.
Spy academies, undercover teams, wartime couriers, code rooms, and gadget-heavy missions for independent readers ages 6–11.
A group of alligator investigators solve a mystery involving a missing chef, a stolen scientific invention, and a triceratops escape artist.
A girl must master spy skills to find her missing mother.
A young girl must navigate a treacherous journey to deliver a secret message to a tavern owner in a small town.
A boy becomes a spy amidst pre-Revolutionary War tensions.
Young spies must outwit a global threat with a mysterious key.
Two kids flee across Europe after a failed plot to kill Hitler.
Spies race to stop a criminal's escape and prevent attacks across Europe.
An Olympic gymnast uncovers a dark secret in 1936 Berlin, risking everything to thwart a sinister plot.
A girl uncovers her grandmother's secret past in the Dutch Resistance, revealing hidden family ties and wartime bravery.
A pastor risks everything to stop Hitler's rise.
A young spy must stop a presidential assassination and uncover a legendary coat's secret.
A missing plane, a Yeti skull, and a daring mountain rescue.