160,000+ Books, Games & Puzzles in-stock 🇳🇿 

21 Days of Fear: A Letters Thriller

Brief Description
A heart-wrenching YA thriller told in an advent calendar format, paced for amping up the chilling suspense! What would you do to bring your sister back from the dead? After Lucas’s sister mysteriously disappeared ten years ago, his family was torn apart. His mother has been... Read More
Format: Hardback
$3500
Elsewhere:
$4500
OVERNIGHT NZ-WIDE DELIVERY

Found a better price? Request a price match

A heart-wrenching YA thriller told in an advent calendar format, paced for amping up the chilling suspense!

Keep the anticipation building by reading one of the twenty-four sealed chapters each day in the lead up to Christmas! 

Book Hero Magic formatted this description to make it easier to read. While it's new and still learning, it may not be perfect - your feedback is welcome! Description

A heart-wrenching YA thriller told in an advent calendar format, paced for amping up the chilling suspense!

What would you do to bring your sister back from the dead?

After Lucas’s sister mysteriously disappeared ten years ago, his family was torn apart. His mother has been lost in a deep depression ever since, his father has been unable to speak of what happened and Lucas has been trapped in his guilt... until he receives a note that changes everything.

Lucas has twenty-one days to find out the truth about what happened to his sister, and save her life... if she really is still alive.

Every action is watched, every choice counted. Can he save his sister without losing himself?

Keep the anticipation building by reading one of the twenty-four sealed chapters each day in the lead-up to Christmas!

Book Details

INFORMATION

ISBN: 9781398564022

Publisher: Simon & Schuster Ltd

Format: Hardback

Date Published: 10 September 2026

Country: United Kingdom

Imprint: Simon & Schuster Ltd

Audience: Children

DIMENSIONS

Width: 150.0mm

Height: 210.0mm

Weight: 350g

Pages: 422

About the Author

After studying modern literature, Hervé Commère became a bartender and a bar owner. He is the author of several short stories and novels in French, including Les ronds dans l’eau, winner of the Prix marseillais du polar; Imagine le reste, winner of the plume de cristal at the international Festival international du film policier de Liège; Ce qu’il nous faut, c’est un mort, Prix Polars Pourpres et Prix Polar à Mauves-sur-Loire; and Sauf, which was well-received by critics and general audiences alike. His work has been translated to Japanese, Chinese, and English.

More from Children's Books

View all
  • New Release
    Gruffalo Granny
    The brand new Gruffalo picture book from Julia Donaldson and Axel Scheffler. The Gruffalo said to his daughter one day, "Your Gruffalo Granny is coming to stay." Return to the deep dark wood with the first new Gruffalo story in over 20 years, and meet Gruffalo Granny as she visits the Gruffalo family. This fresh and exciting new Gruffalo adventure...
    Hardback
    $2499
    Elsewhere:
    $3000
    (3)
    In Stock
    Ships tomorrow
  • Sprinkle in Time: A Graphic Novel (Dog Man #15)
    Pre-order
    Sprinkle in Time: A Graphic Novel (Dog Man #15)
    In the newest saga, our anti-hero, Grandpa, alters the fabric of time and space. Is his evil the necessary soil for Dog Man and friends to grow and bloom? Can we all step up to be the change? It's the saga of the century—Dog Man: A Sprinkle in Time!
    Hardback
    $2399
    Elsewhere:
    $2799
    Pre-order
    Out 4 Nov 2026
  • New Release
    Fight or Flight: Diary of a Wimpy Kid (21)
    When the going gets tough, what’s a wimpy kid to do? In Fight or Flight, Greg Heffley faces his biggest challenge yet as he becomes a target for the school bully. Luckily for Greg, his best friend, Rowley Jefferson, takes karate, so at least Greg’s got someone in his corner. But an unexpected twist makes Greg realize he’s facing an uphill...
    Paperback
    $1699
    Elsewhere:
    $2100
    In Stock
    Ships tomorrow
  • Detective Beans Colouring Club
    New Release
    Detective Beans Colouring Club
    Help Detective Beans solve the case of the missing colours! Join the Colouring Club now! Join the Detective Beans Colouring Club! Inside you'll find 40 removable colouring pages featuring scenes from all over Cat Town. Filled with all the characters you know and love from the Detective Beans graphic novels like Biscuits, Beans' mum, Mr Brickle, Bear, Detective Baby Bird...
    By Li Chen
    Paperback
    $1799
    Elsewhere:
    $2100
    In Stock
    Ships tomorrow
  • New Release
    The Sixth Faction
    Beatrice Prior stands on the brink of a decision every person in her world must make: five factions, five futures, five lives. She has a plan: she's going to make the bravest choice, and leave Abnegation behind to join Dauntless, even though it means leaving her family behind. But when tragedy strikes at her Choosing Ceremony, everything changes—her world, her...
    Paperback
    $2999
    Elsewhere:
    $3499
    In Stock
    Ships tomorrow
  • New Release
    The Naturals: Dangerous Impulses Book 5
    The Naturals are BACK! No. 1 New York Times bestselling author Jennifer Lynn Barnes delivers the highly anticipated new installment in her beloved Naturals Series. Cassie Hobbes joined the FBI's Naturals program at seventeen because she had an incredible ability to read people. Since then, Cassie, fellow profiler Dean, emotion‐reader Michael, lie‐detector Lia, and statistical genius Sloane have caught serial...
    Paperback
    $2199
    Elsewhere:
    $2499
    In Stock
    Ships tomorrow
  • New Release
    All of Us
    A new heart-wrenching, well-researched historical novel for middle-grade readers. 'The weirdest thing,' continues Tove, 'is that I don't feel any different to the rest of you.' 'That's because you're not!' snaps Birgitte. 'You're Danish.' 'So why do the Nazis hate me and not you?' When twelve-year-old Viggo and his friends Finn, Tove, Birgitte and Konrad start writing rude letters to...
    Hardback
    $2599
    Elsewhere:
    $2999
    In Stock
    Ships tomorrow
  • The Star Path
    New Release
    The Star Path
    A young whale searches for the whale rider's heir and a teenager takes an epic voyage to Antarctica with a fleet of waka hourua to claim his lost inheritance, in this breathtaking return to the world of global hit The Whale Rider, over thirty years on. From the internationally acclaimed author of The Whale Rider comes a novel about the...
    Paperback
    $2999
    Elsewhere:
    $3500
    (1)
    In Stock
    Ships tomorrow
  • Wahine
    New Release
    Wahine
    From a majestic mermaid to a clay woman, the creator of glaciers to the mother of gardening, discover powerful wahine and how their stories shaped the world around us. Wahine introduces readers to twelve purakau of brave, bold, and inspiring women of Aotearoa. A beautifully illustrated collection that will delight the whole whanau, from award-winning illustrator Isobel Joy Te Aho-White....
    Hardback
    $3199
    Elsewhere:
    $3999
    In Stock
    Ships tomorrow
  • New Release
    Lottie Brooks’s Twelve Disasters of Christmas
    From hilarious MEGA bestselling author, Katie Kirby, comes a new story collection from the world of Lottie Brooks! But this time... it's not about Lottie! From hilarious MEGA bestselling author, Katie Kirby, comes a new story collection from the world of Lottie Brooks! And it's CHRISTMAS! In The Completely Chaotic Christmas of Lottie Brooks we spent the holiday season with...
    Paperback
    $1799
    Elsewhere:
    $2100
    In Stock
    Ships tomorrow
  • Matihe! Achoo! Matihe! Achoo!
    New Release
    Matihe! Achoo!
    What happens when a grumpy tupua has to sneeze? Matihe! Achoo! is a bilingual story about the tupua Mataoho and his connection to the volcanoes of Tāmaki Makaurau, Auckland. It comes with an action song to engage young readers! He pūrākau e pā ana ki a Mataoho me ngā puia o Takamaki Makaurau. He tupua pukukino a Mataoho e noho...
    Paperback
    $1899
    Elsewhere:
    $2100
    In Stock
    Ships tomorrow
  • The Sweet As Looky Book
    New Release
    The Sweet As Looky Book
    Can you find all the chocolate fish? Is it possible for kiwi to fly? Can you spot the difference? See Aotearoa New Zealand through the eyes of award-winning artist Donovan Bixley in The Sweet As Looky Book. Use your finest skills to seek out pirates in the Bay of Islands and birds in Rakiura Stewart Island. Get in a car...
    Hardback
    $2299
    Elsewhere:
    $2799
    In Stock
    Ships tomorrow

Why buy from us?

Book Hero is not a chain store or big box retailer. We're an independent 100% NZ-owned business on a mission to help more Kiwis rediscover a love of books and reading!

Service & Delivery

Service & Delivery

Our warehouse in Auckland holds over 160,000 books, toys, board games and puzzles in-stock so you're not waiting for your order to arrive from overseas.

Auckland Bookstore

Auckland Bookstore

We're primarily an online store, but for your convenience you can pick up your order for free from our bookstore, which is right next door to our warehouse in Hobsonville.

Our Gifting Service

Our Gifting Service

Books make wonderful thoughtful gifts and we're here to help with gift-wrapping and cards. We can even send your gift directly to your loved one.