Top 10 Best Mystery Books for 9-year-olds

From daring quests in perilous lands to spooky supernatural stories, kids will be enthralled by the tales in this list of the best mystery books for 9-year-olds. It features best-loved books by authors including Enid Blyton, David Walliams and Neil Gaiman.

1. The Famous Five

Enid Blyton

Join the intrepid Famous Five - Dick, Anne, Julian, George and Timmy the dog - on all of their exciting escapades, in caves, castles, secret passageways and more! The gang must outsmart thieves, hunt for hidden treasure, and unravel all sorts of mysteries in these riveting classic tales.

2. Mariella Mystery Stories

Kate Pankhurst

Mariella is just 9 years old, but she's already a talented super sleuth who's prepared for any mystery that comes her way. In these enthralling books, she must work out where the Bad Hair Day Fog is coming from, find out if a ghostly guinea pig is really on the loose, and figure out who's sabotaging the Puddleford Baking contest. Presented in an engaging journal style complete with fun illustrations, these exciting tales are sure to engross young readers.

3. A Series of Unfortunate Events: The Bad Beginning

Lemony Snicket

Following the mysterious death of their parents in a house fire, the Baudelaire children - Violet, Klaus and Sunny - are sent to live with their distant relative, Count Olaf, an eccentric actor who doesn't really care about the children, but about the family fortune they are due to inherit. Count Olaf is determined to claim this inheritance for himself, but cannot do so until Violet comes of age. The Baudelaire children set out to foil Count Olaf's efforts and unravel the mystery behind a secret society with which their parents were somehow involved. This gripping series is infused with sardonic humour.

4. The Secret Garden

Frances Hodgson Burnett

If you're looking for mystery, adventure, secrets and friendship, you'll find it all in this beautiful classic novel. Spoiled orphan Mary Lennox is sent to live at the isolated Misselthwaite Manor in Yorkshire - but she will discover a magical world she could never have imagined on the other side of a locked garden door. She decides to bring the neglected garden she finds there back to life, and in doing so, will change the course of her own destiny forever.

5. Demon Dentist

David Walliams

This book follows 12-year-old Alfie, whose teeth are horribly rotten! Throughout the town, children are putting their teeth under their pillows for the tooth fairy, but when they wake up, they don't find money, but horribly disgusting things like cat poo and earwigs. Things get stranger when the new dentist, Miss Root, starts handing out free sweets and acidic toothpaste to children. Alfie resolves to find out the truth - but what will happen when he ends up in the dentist's chair? This gruesome and hilarious story is guaranteed to delight (and horrify!) kids.

6. Roman Mysteries Stories

Caroline Lawrence

Children can travel back in time to the exciting, perilous world of the Romans with these thrilling fictional tales. They follow natural problem-solver Flavia Gemina and her friends, Jonathan, Nubia and Lupus, as they set forth to solve a series of perplexing mysteries.

7. The Harry Potter Series

J. K. Rowling

This enchanting series features plenty of magic and mystery, guaranteed to captivate young readers. Join young Harry Potter as he enrols at the wondrous (but perilous!) Hogwarts School of Witchcraft and Wizardry. Over the years, he must contend with all sorts of fantastical beasts, a secretive Potions Master and a number of perplexing mysteries, and must ultimately face his most terrifying nemesis: Lord Voldemort.

8. Marsh Road Mysteries

Elen Caldecott

These thrilling novels are filled with friendship, fun and plenty of adventure. Guaranteed to keep kids hooked, they follow Piotr, Minnie, Andrew, Flora and Sylvia, who must try to track down a diamond thief - but what will they do when the prime suspect turns out to be Piotr's dad? Discover the truth and unravel two other mind-boggling mysteries in these fantastic tales.

9. Goosebumps Series

R. L. Stine

Dare your kids to read these heart-pounding books from R. L. Stine's Goosebumps series, in which children must face all sorts of supernatural terrors. These spine-chilling books are guaranteed to enthral children, featuring twisted, funny and gritty adventures. Discover ghouls, ghosts, vampires and more in these spectacularly spooky books.

10. Coraline

Neil Gaiman

This perfectly creepy and thrilling novel stars Coraline, whose family moves into a brand new flat. There, she discovers a door that leads to an unnerving mirror universe, where a mother and father with black-button eyes and papery skin beckon Coraline to join them. Whilst this strange other world seems in so many ways much better than the original, Coraline will discover that a host of children's souls are trapped there. Will she be able to save them, as well as herself?

  • EIL2 9 years +
    Neil Gaiman
    9 years +
    • £3.99
    • RRP £6.99
    • Save £3.00
    Widely regarded as a modern classic of children's literature, and also the inspiration for a major film adaptation directed by Henry Selick, this is a special tenth anniversary edition of Coraline.

    Written by the bestselling Neil Gaiman, this edition comes complete with a new foreword from the author, as well as visually striking illustrations from Children's Laureate Chris Riddell.

    There's something strange about Coraline's new home, and it's not the constant mist or the cat that keeps watching her, it's the other house... The one behind the old door in the drawing room, where a mother and father with black-button eyes and papery skin want Coraline to join them. But if Coraline steps through that door, she knows she may not come back...

    A gripping and dark contemporary fairy tale with just the right amount of creepiness.
  • The Complete Harry Potter Collection - 7-Book Box Set - Collection - 9781408856772 - JK Rowling
    HRYP 9 years +
    9 years +
    (18)
    • £29.99
    • RRP £62.99
    • Save £33.00
    • Just £4.28 per book
    If you're lucky enough to have tickets to see The Cursed Child on stage or are already excited for the next Fantastic Beasts film in 2018, then why not head back to Platform 9 3/4, climb aboard the Hogwarts Express and enjoy the Complete Harry Potter Collection for a magical price. Presented in a gorgeous slipcase, these editions of J. K. Rowling's classics come complete with stunning cover illustrations from Jonny Duddle.

    A phenomenon like no other, Harry's incredible journey begins with The Philosopher's Stone. Unhappily living in a cupboard under the stairs at his aunt's, he's visited by a giant called Rubeus Hagrid who delivers the most astonishing news - Harry's a wizard. As he heads to Hogwarts School of Witchcraft and Wizardry, Harry makes friends with Ron Weasley and Hermione Granger, meets oh-so-wise Professor Dumbledore and the complex Severus Snape and their incredible adventure begins. But evil in the shape of Lord Voldemort is getting ever closer - and the Dark Lord has his sights set firmly on Harry.

    Throughout the seven books, Harry learns what it means to be a Gryffindor student and the value of friendship and trust. The eight films starring Daniel Radcliffe, Emma Watson and Rupert Grint were a record-breaking success and now you can relive the stories where it all began time and time again with this amazing Harry Potter box set - Expecto Patronum!
    Format: Paperback
  • DWAL 9 years +
    David Walliams
    9 years +
    (9)
    • £4.99
    • RRP £12.99
    • Save £8.00
    Following on from the success of Mr Stink, Gangsta Granny and his three other bestselling children's novels, Little Britain actor, comedian, fundraiser and talented author David Walliams returns with Demon Dentist.

    Another jaw-achingly funny read, this time a cloud of darkness has come to town. Children who put a tooth under their pillow for the tooth fairy are waking up to find dead slugs, live spiders and earwigs underneath. Someone or something evil is lurking, but who or what is it?

    With Tony Ross' hilarious illustrations once again featured throughout and a hint of Roald Dahl-style macabre humour, this is a funny but heart-warming book that will make parents laugh just as much as children.

    David Walliams' Demon Dentist has been named the winner of the Red House Children's Book Award 2015 Younger Readers category.
  • AGITC
    • £5.59
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    • Save £1.40
    The Bad Beginning, the first book in Lemony Snicket's wonderful and bestselling A Series of Unfortunate Events, introduces readers to the misadventures - and misfortune! - of the Baudelaire children Violet, Klaus and baby Sunny.

    Their misfortunes begin when Mr. Poe informs them that their parents perished in a fire that destroyed their whole house. But, of course, what follows is even more dreadful... The children thought it was bad when the well-meaning Poes bought them grotesque-colored clothing that itched, but when they are ushered to the dilapidated doorstep of the miserable, thin, unshaven, shiny-eyed, money-grubbing Count Olaf, they know that they - and their family fortune - are in real trouble.

    Reminiscent of Roald Dahl and Charles Dickens, Lemony Snicket's A Series of Unfortunate Events is ideal reading for children aged 9 and above - and this is the perfect place to start!
  • The Famous Five Collection - 22 Books - Collection - 9781444936278 - Enid Blyton
    FFCC 7 years +
    Enid Blyton
    7 years +
    (3)
    • £24.99
    • RRP £153.78
    • Save £128.79
    • Just £1.14 per book
    With mysteries, adventure and lashings of ginger beer, The Famous Five have entertained generations of young readers. In fact, the books have never been out of print!

    Here, in a keepsake box, you can enjoy all 22 novels that follow Julian, Dick, Anne, George and Timmy the dog as they visit some thrilling places and explore and uncover all sorts of secrets. To complete the set, there's a book of short stories about our favourite would-be detectives.

    From Kirrin Island to the lighthouse at Demon's Rocks and farms, castles, caves and secret passages galore, the gang outwit thieves, seek hidden treasure and encounter spook trains in their exciting journeys. Illustrated by Eileen Soper, this complete set of books shows how courage and determination can always help children achieve great things.

    Book People and Enid Blyton - A Lifetime of Adventure
    Format: paperback
  • R.L. Stine's Goosebumps Collection - 10 Books - Collection - 9781407179896 - R.L. Stine
    BUMP 9 years +
    9 years +
    • £9.99
    • RRP £49.90
    • Save £39.91
    • Just £1.00 per book
    Prepare for your children to be sleeping with the lights on... our latest 10-book Goosebumps collection is sure to give them the creeps!

    R.L. Stine's spooky books have sold over 400 million copies worldwide and have helped to ensure generations are terrified of ventriloquist's dummies... following the success of the film starring Jack Black, the books have been brought to a whole new audience and here are 10 adventures that are twisted, funny and rather dark. They'll be top of every child's reading list.

    This collection features the classic Night of the Living Dummy alongside other memorable titles including Revenge of the Lawn Gnomes and The Abominable Snowman of Pasadena. Great books for encouraging a love of reading, will your kids dare to read through all 10?
  • Marsh Road Mysteries Collection - 3 Books - Collection - 9781408881491 - Elen Caldecott
    MSHR 9 years +
    Elen Caldecott
    9 years +
    • £4.99
    • RRP £17.97
    • Save £12.98
    • Just £1.66 per book
    Written by award-winning author Elen Caldecott, the Marsh Road Mysteries are filled with friendship and adventure.

    This three-book collection combines classic Blyton-esque stories with the more contemporary style of Lauren St John and will keep children aged 9 and over gripped and entertained throughout.

    With a wicked humour also present, the series starts with Diamonds and Daggers, a book that finds our heroes - Piotr, Minnie, Andrew, Flora and Sylvia - hot on the trail of a thief who stole a Hollywood sensation's diamond necklace. But then the prime suspect turns out to be Piotr's dad...

    Crowns and Codebreakers finds Minnie's Nigerian nan coming to stay. When she picks up the wrong suitcase at the airport, she's not impressed, but then Minnie's house is burgled and the only thing taken is that very suitcase. Full of boys' clothes, the gang will have to find out why this case is so important...

    In Spooks and Scooters, someone has stolen the precious blueprints of Flora and Sylvie's dad's latest scooter invention. But who has stolen it and why?
  • The Roman Mysteries Collection - 10 Books - Collection - 9781510102507 - Caroline Lawrence
    RNMY 9 years +
    Caroline Lawrence
    9 years +
    (3)
    • £11.99
    • RRP £69.90
    • Save £57.91
    • Just £1.20 per book
    With authentic period detail, these 10 books from Caroline Lawrence are set in Ancient Rome and the mysteries are sure to keep children at with an interest in history guessing and racing through the pages as they discover the answers.

    The stories follow Flavia Gemina, a natural at problem solving, as she teams up with her friends Jonathan, Nubia and Lupus to solve a series of puzzling mysteries.

    Very readable, highly addictive and accessible enough for younger readers to enjoy, these are books children will return to again and again.
  • Mariella Mystery Collection - 4 Books - Collection - 9781510103818 - Kate Pankhurst
    MMYS 7 years +
    Kate Pankhurst
    7 years +
    (3)
    • £4.99
    • RRP £20.96
    • Save £15.97
    • Just £1.25 per book
    There is no mystery too mysterious and no problem too perplexing in this four-book collection following the investigations of Mariella Mystery.

    Mariella is a talented super sleuth aged 9 and a bit who is prepared for any mystery that needs solving. Whether scary or dramatic, she has the nous to put together the clues. In these books she looks into where the Bad Hair Day Fog is coming from; finds out if a ghostly guinea pig is really on the loose; and works out who's sabotaging the Puddleford Baking contest.

    Presented in a journal style complete with illustrations, Kate Pankhurst's Mariella Mystery Investigates books are sure to inspire your children to pick up their very own magnifying glass.
  • SRH2 9 years +
    Frances Hodgson Burnett
    9 years +
    • £2.99
    • RRP £5.99
    • Save £3.00
    What are you looking for?

    Friendship! Mystery! Adventure! Secrets!

    When spoiled, selfish orphan Mary Lennox is sent to live at lonely Misselthwaite Manor in Yorkshire, she discovers a magical world on the other side of a locked garden door. Mary decides to bring the abandoned garden she finds there back to life; and in doing so, changes her own forever.

    Written by Frances Hodgson Burnett, The Secret Garden is a children's classic that has enchanted generations.