Ask a bookshop for children’s spy books and you’ll usually get pointed at Alex Rider. Brilliant if your child is ten. Not so great if they’re six.
If your child is obsessed with spies (and if you grew up on Spy Kids, you’ll know the feeling), these are the ones I’d hand over. League of Llamas at 5 to 7, The Spy Who Loved School Dinners at 7 to 9, then City Spies and the first Alex Rider at 9 to 11.
If you’re after a little more info on these books, keep scrolling.
The spy phase was one that I remember well as a child. But I have to say the gadgets, missions and villains land at any age. That’s why we’re all still devouring James Bond (who’s your money on for who’s taking the baton from the great DC?).
But what does change through the ages is how real the danger should feel.
Most of these are on our action books shelf, and I’ve ordered them from silliest to most serious, which conveniently is also youngest to oldest.
What age are spy books right for?
All of them, honestly, as long as you match the level of danger.
At 5 to 7, the stories are more humour-led and the spying jokey. At 7 to 9, the plot is mission-led with real stakes but also a safety net. By 9 to 11 they can handle stakes-led thrillers where the hero might actually lose something (or someone).
One thing to watch when you’re shopping around. A lot of what gets sold under “spy books” is actually puzzle sets and search-and-find annuals. Fun, but it isn’t reading a story, and a child in a proper spy phase wants a story.
Two more rules of thumb from ten years of watching this phase play out in classrooms. Children happily read a band down for comfort (funny llamas never expire), and reading a band up works best when the danger is historical rather than close to home.
So treat the bands below as a starting point, not a rule.
Children’s spy books for ages 5 to 7
At this age a spy story is really a comedy in disguise.
League of Llamas: The Golden Llama by Aleesah Darlison
League of Llamas – The Golden Llama
Agent 0011 Phillipe Llamar would be the League of Llamas’ finest if he could stop admiring his own luxurious fringe in the mirror. His partner Lloyd would help if he could stop eating everything in his path.
Together they’re up against the thieving General Bottomburp (I know) and his badger henchmen, who are after the Llama Republic’s most prized relic.
The jokes are right up a six year old’s street and the chapters suit newer readers.
In Spy Penguins by Sam Hay, Jackson is a penguin who dreams of being a secret agent like his Uncle Bryn (star of the Frosty Bureau of Investigation). Officially he’s too young.
Unofficially, when one of his best friend Quigley’s inventions goes wrong, he lands smack in the middle of an FBI stakeout. Rare fish are vanishing from the city aquarium and not even the grown-up agents can work out why.
Gadgets, penguins and a proper little mystery for age 7.
One more worth a look at this age. In Nick and Tesla’s Secret Agent Gadget Battle, two inventor siblings discover there’s a spy snooping around their uncle’s house.
More at this level on our books for 7 year olds page.
Ages 7 to 9
Somewhere around 7 or 8, the missions start to mean something. Still funny, but now with actual stakes.
There’s plenty more in this bracket on our adventure books for 8 year olds page.
The Spy Who Loved School Dinners by Pamela Butchart
The Spy Who Loved School Dinners
Izzy has been put in charge of Matilde (the new French girl) and the plan is simple. Show her the den, introduce her to the moth, help her avoid school dinners (also known as poison).
Except Matilde LOVES school dinners. She even has seconds. Which can only mean one thing. She’s a spy, sent to steal their secrets, and she must be stopped before it’s too late.
Playground logic escalated to national-emergency levels, and very funny. Spot on at 7 to 8.
Explorer Academy: The Forbidden Island by Trudi Trueit
Explorer Academy: The Forbidden Island
Cruz Coronado is racing to complete the last piece of a cipher before the shadowy Nebula agents beat him to it, and the chase drags his academy shipmates from Antarctic icebergs to bone-dry Argentine desert. Oh and there’s a spy inside the organisation too.
Think of it as the National Geographic take on a thriller, real science included, and great for an 8 year old with an atlas obsession.
In No More Mr Nice Spy by Guy Bass, Spynosaur is a dinosaur. He is also a secret agent.
When he’s accused of eating the princess of Canada’s prized pet (a pug called Pugsy Malone), his Right to Spy is revoked and he goes on the run with his sidekick Amber, hunted across the globe by Danger Monkey and the rest of Department 6.
Very silly, and just right for 8 to 9.
In Dirk Daring, Secret Agent by Helaine Becker, Darren Dirkowitz’s tippity-top-secret spy journal has fallen into the hands of his evil stepbrother (code name Waldo) who’s threatening to share it with the whole of Preston Middle School.
School-corridor espionage rather than international incident. Around 9.
Ages 9 to 11
By 9 or 10 they’re ready for the real thing. Proper missions, proper villains, consequences.
This is also where the shelf gets deep. Our adventure books for 9 year olds page carries the overflow.
Rebel Undercover (The Forgotten Five) by Lisa McMann
Rebel Undercover (The Forgotten Five)
Spy Kids with superpowers. Five children of supernatural criminals are working against a corrupt president.
The newest plan from their confidante The Librarian is the riskiest yet. Lada goes undercover inside the president’s own operation, gathering intelligence for the resistance while surrounded by people who’d love to catch her.
Undercover-team tension for the mission-hungry reader, around 9 to 10.
Unexpected Super Spy by Zanib Mian
Unexpected Super Spy
Omar and his friends have been saving for the world’s most epic Nerf Blaster battle, but when Omar discovers his mosque is in trouble, the pocket money goes to the rescue fund instead. Chores, cookie sales, a talent contest.
Then the money mysteriously disappears, and someone has to work out who took it before the mosque closes for good.
More undercover kid than international agent, and the funniest book in this list. Around 9 to 10.
In The Drone Pursuit by Victor Appleton, Tom Swift goes to a school where testing your virtual reality drone before class is completely normal.
Then he spots the school custodian acting suspiciously, right after a documentary on the FBI’s most wanted hackers of the eighties, and his friends’ conspiracy theory stops being a theory. When a virus hits the school servers, the hunt is on.
One for the child who’s as interested in the tech as the tradecraft. Age 9 and up.
In Chester Keene Cracks the Code by Kekla Magoon, Chester runs on routine. Bowling after school Monday to Thursday, laser tag on Fridays, and secret spy messages from his dad, who’s always away on covert government assignments.
Then his classmate Skye turns up with a clue, and the two of them are pulled into a puzzle-solving mission that ends somewhere neither of them expects. Stopping a heist.
The final clue points somewhere Chester never saw coming. Around 9 to 10.
And if they’re at the Alex Rider end of this list, we’ve got something more severe. Stormbreaker and City Spies both live in the library, and our books like Alex Rider guide runs the whole 9 to 11 thriller tier in detail, including Rescue (a second-world-war espionage story that’s the natural top of this ladder).
Not sure they’re ready for Alex himself? Our guide on what age the Alex Rider books are for settles the peril question.
Honourable mentions
A couple that didn’t fit a band neatly.
The Bicycle Spy follows Marcel (a baker’s son in occupied France) who dreams of the Tour de France and ends up carrying secrets on his delivery rounds instead. History-flavoured spying at around 9.
And for the child who wants their agents further from Earth, the same shelf holds space-station detectives and secret-agent gadget builders. Poke around the mystery books hub and see what takes their fancy.
Just so you know…
Every book above is in Little Reads, a library of 3,000+ hand-picked books for children aged 5 to 11.
A free account gives you 100+ free books, and full access is £7.99 a month after a 7-day free trial. Cancel anytime.
Fair warning about what we’re not. There’s no phonics and no learn-to-read scheme here. We’re the app for the child who already loves reading and keeps running out of books.
And if that child currently answers to a code name, the missions above should keep headquarters busy for a while.