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Astrid and the Accidental Slip Between Worlds

By Jaclyn Moriarty
Series: A Kingdoms and Empires Book
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Brief Description
Astrid and the Accidental Slip Between Worlds by Jaclyn Moriarty follows Astrid Mettlestone-Staranise, who can always tell when someone is lying. However, this ability doesn't help when she is thrown from the Kingdoms and Empires into our world—a world that will steal not only her memory... Read More
Format: Hardback
$2699
Elsewhere:
$2999
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Releases 3rd November 2026 (Approx. Date) Pre-order  "Astrid and the Accidental Slip Between Worlds" now to secure your copy from our first shipment

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From the award-winning author Jaclyn Moriarty comes a brilliant, funny, fast-paced fantasy suitable for readers who love Jessica Townsend, Diana Wynne Jones and Karen Foxlee.

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

Astrid and the Accidental Slip Between Worlds by Jaclyn Moriarty follows Astrid Mettlestone-Staranise, who can always tell when someone is lying. However, this ability doesn't help when she is thrown from the Kingdoms and Empires into our world—a world that will steal not only her memory but the essence of who she is.

Ordinarily, Astrid would rely on her older sisters, Esther and Imogen, to rescue her. But Esther is on a school trip to a wilderness camp, along with a Whisperer, a sea monster, and a Faery. The group has found themselves trapped; food is running out, Shadow Mages keep attacking, and frying pans and grand pianos are falling from the sky.

Meanwhile, Imogen is busy at the Elven Games with her cousin Bronte Mettlestone, and their friend Oscar. The trio are seeking a True Mage turned evil, whose wicked plan might tear the fabric of the universe to shreds.

Neither sister knows Astrid is in danger. Can they locate the True Mage and stop the evil plan before all the worlds are permanently changed, and Astrid is lost forever?

A stellar work: enchanting and uplifting. Kirkus Reviews (starred)

PERFECT FOR:

  • Readers aged 10-14 who love magic, mystery and whimsy
  • Fans of Nevermoor, Harry Potter, or the Impossible Creatures series
  • Parents, teachers and librarians looking for an entertaining middle grade series
  • Gift givers looking for a beautiful hardback and a perfect immersive magical read

PRAISE FOR THE KINGDOMS AND EMPIRES BOOKS:

  • 'Charms, thrills and delights ... brilliantly evoking echoes of Diana Wynne Jones.' Garth Nix, bestselling author of the Keys to the Kingdoms series
  • 'Brimming with bright new magic ... Just perfect.' Karen Foxlee, award-winning and bestselling author of Dragon Skin
  • 'It's my favourite book ever. I want to put it in a glass case to look at always. 5 stars!' Daisy, age 7
  • 'Humorous, whimsical and beguiling ... intricately and ingeniously plotted tale.' The Australian
  • 'A middle-grade version of Terry Pratchett's Discworld - fantasy adventure steeped in humour, with a touch of satire, and set in a whimsical secondary world of the highest order.' Booklist (starred review)

READ ALL THE BOOKS IN THE SERIES:

  • The Extremely Inconvenient Adventures of Bronte Mettlestone
  • The Slightly Alarming Tale of the Whispering Wars
  • The Stolen Prince of Cloudburst
  • The Astonishing Chronicles of Oscar from Elsewhere
  • The Impossible Secret of Lillian Velvet

Series: A Kingdoms and Empires Book

View all
  • The Impossible Secret of Lillian Velvet
    WINNER: 2024 Indies Children's Book of the Year SHORTLISTED: 2024 Queensland Literary Awards, Children's Book Award 'Jaclyn Moriarty is one of the most original writers we have.' Markus Zusak The Impossible Secret of Lillian Velvet follows Lillian Velvet, who lives a very lonely life with her cold and remote Grandmother. That is, until her tenth birthday, when she is given...
    By Jaclyn Moriarty
    Hardback
    $2799
    Available
    Ships in 4-6 weeks
  • The Extremely Inconvenient Adventures of Bronte Mettlestone
    NOTABLE BOOK: 2018 CBCA Book of the Year, Younger Readers I was ten years old when my parents were killed by pirates. This did not bother me as much as you might think - I hardly knew my parents. Bronte Mettlestone's parents ran away to have adventures when she was a baby, leaving her to be raised by her Aunt...
    By Jaclyn Moriarty
    Paperback
    $2100
    Elsewhere:
    $2299
    Available
    Ships in 4-6 weeks
  • The Slightly Alarming Tale of the Whispering Wars
    WINNER: 2019 QLD Literary Awards, Griffith University Children's Book AwardSHORT-LISTED: 2019 CBCA Book of the Year, Younger Readers I was taken by Whisperers at 2pm, so I never pulled the lever for the laundry chute.That's what bothered me most.This is way ahead in the story, though. A lot happened before that. The town of Spindrift is frequented by pirates, Shadow...
    By Jaclyn Moriarty
    Hardback
    $2600
    Elsewhere:
    $2799
    Available
    Ships in 4-6 weeks
  • The Stolen Prince of Cloudburst
    HONOUR BOOK: 2021 CBCA Book of the Year, Younger Readers SHORT-LISTED: 2021 Prime Minister's Literary Awards, Children's Literature SHORT-LISTED: 2021 Queensland Literary Awards, Children's Book Award Long ago, the little Prince of Cloudburst was stolen from the seashore by a Water Sprite. Now, ten years later, the prince has found his way home. The King and Queen are planning the...
    By Jaclyn Moriarty
    Paperback
    $2100
    Elsewhere:
    $2299
    Available
    Ships in 4-6 weeks
  • The Stolen Prince of Cloudburst
    HONOUR BOOK: 2021 CBCA Book of the Year, Younger Readers SHORT-LISTED: 2021 Prime Minister's Literary Awards, Children's Literature SHORT-LISTED: 2021 Queensland Literary Awards, Children's Book Award Long ago, the little Prince of Cloudburst was stolen from the seashore by a Water Sprite. Now, ten years later, the prince has found his way home. The King and Queen are planning the...
    By Jaclyn Moriarty
    Hardback
    $2600
    Elsewhere:
    $2799
    Available
    Ships in 4-6 weeks
  • The Astonishing Chronicles of Oscar from Elsewhere
    Let me get this straight. I'm on a trip with the following people: 1) Bronte, a girl who makes magical 'Spellbinding' rings, 2) Alejandro, a former pirate/current prince who can shoot arrows and make fire from stones, 3) Imogen, who can read broken maps and is a kickboxing master, 4) Esther, who saved her entire world from some kind of...
    By Jaclyn Moriarty
    Hardback
    $2600
    Elsewhere:
    $2799
    In Stock
    Ships Tuesday
  • The Slightly Alarming Tale of the Whispering Wars
    WINNER: 2019 QLD Literary Awards, Griffith University Children's Book AwardSHORT-LISTED: 2019 CBCA Book of the Year, Younger Readers I was taken by Whisperers at 2pm, so I never pulled the lever for the laundry chute. That's what bothered me most. This is way ahead in the story, though. A lot happened before that. The town of Spindrift is frequented by...
    By Jaclyn Moriarty
    Paperback
    $2299
    Available
    Ships in 4-6 weeks
  • Astrid and the Accidental Slip Between Worlds
    Pre-order
    Astrid and the Accidental Slip Between Worlds
    Astrid and the Accidental Slip Between Worlds by Jaclyn Moriarty follows Astrid Mettlestone-Staranise, who can always tell when someone is lying. However, this ability doesn't help when she is thrown from the Kingdoms and Empires into our world—a world that will steal not only her memory but the essence of who she is. Ordinarily, Astrid would rely on her older...
    By Jaclyn Moriarty
    Hardback
    $2699
    Elsewhere:
    $2999
    Pre-order
    Out 3 Nov 2026
  • The Extremely Inconvenient Adventures of Bronte Mettlestone
    NOTABLE BOOK: 2018 CBCA Book of the Year, Younger Readers I was ten years old when my parents were killed by pirates. This did not bother me as much as you might think - I hardly knew my parents. Bronte Mettlestone's parents ran away to have adventures when she was a baby, leaving her to be raised by her Aunt...
    By Jaclyn Moriarty
    Hardback
    Sold Out

Book Details

INFORMATION

ISBN: 9781761182006

Publisher: A&U Children's

Format: Hardback

Date Published: 03 November 2026

Country: Australia

Imprint: A&U Children

Audience: Children

DIMENSIONS

Width: 138.0mm

Height: 208.0mm

Weight: 350g

Pages: 432

Collections

Children's Books Children's Fiction Children’s, Teenage and Educational Jaclyn Moriarty Kids & YA Pre-orders Pre-order Books Pre-Order Children's Books Pre-orders Pre-orders by Release Date Series: A Kingdoms and Empires Book Young Adult

About the Author

Jaclyn Moriarty is the internationally bestselling author of novels for children, young adults and sometimes slightly older adults, including the (lengthily-titled) books in the Kingdoms and Empires series: The Extremely Inconvenient Adventures of Bronte Mettlestone, The Slightly Alarming Tale of the Whispering Wars, The Stolen Prince of Cloudburst, The Astonishing Chronicles of Oscar from Elsewhere, and The Impossible Secret of Lillian Velvet. Her latest book in the series is Astrid and the Accidental Slip Between Worlds, and her latest novel for adults is Time Travel for Beginners. Jaclyn's books have been translated into several languages, won the NSW Premier's Literary Award, the Queensland Literary Award, the Aurealis Award and named as CBCA Honour Book and Boston Globe-Horn Book Honor Book. They have also been shortlisted for the Prime Minister's Literary Awards, the Nebula Prize and the Russell Prize for Humour Writing for Young People. A former media and entertainment lawyer, Jaclyn grew up in Sydney, lived in the US, UK and Canada, and now lives in Sydney again. She is very fond of blueberries, chocolate and ice skating. www.jaclynmoriarty.com

Also by Jaclyn Moriarty

View all
  • The Impossible Secret of Lillian Velvet
    WINNER: 2024 Indies Children's Book of the Year SHORTLISTED: 2024 Queensland Literary Awards, Children's Book Award 'Jaclyn Moriarty is one of the most original writers we have.' Markus Zusak The Impossible Secret of Lillian Velvet follows Lillian Velvet, who lives a very lonely life with her cold and remote Grandmother. That is, until her tenth birthday, when she is given...
    By Jaclyn Moriarty
    Hardback
    $2799
    Available
    Ships in 4-6 weeks
  • The Extremely Inconvenient Adventures of Bronte Mettlestone
    NOTABLE BOOK: 2018 CBCA Book of the Year, Younger Readers I was ten years old when my parents were killed by pirates. This did not bother me as much as you might think - I hardly knew my parents. Bronte Mettlestone's parents ran away to have adventures when she was a baby, leaving her to be raised by her Aunt...
    By Jaclyn Moriarty
    Paperback
    $2100
    Elsewhere:
    $2299
    Available
    Ships in 4-6 weeks
  • The Slightly Alarming Tale of the Whispering Wars
    WINNER: 2019 QLD Literary Awards, Griffith University Children's Book AwardSHORT-LISTED: 2019 CBCA Book of the Year, Younger Readers I was taken by Whisperers at 2pm, so I never pulled the lever for the laundry chute.That's what bothered me most.This is way ahead in the story, though. A lot happened before that. The town of Spindrift is frequented by pirates, Shadow...
    By Jaclyn Moriarty
    Hardback
    $2600
    Elsewhere:
    $2799
    Available
    Ships in 4-6 weeks
  • The Stolen Prince of Cloudburst
    HONOUR BOOK: 2021 CBCA Book of the Year, Younger Readers SHORT-LISTED: 2021 Prime Minister's Literary Awards, Children's Literature SHORT-LISTED: 2021 Queensland Literary Awards, Children's Book Award Long ago, the little Prince of Cloudburst was stolen from the seashore by a Water Sprite. Now, ten years later, the prince has found his way home. The King and Queen are planning the...
    By Jaclyn Moriarty
    Paperback
    $2100
    Elsewhere:
    $2299
    Available
    Ships in 4-6 weeks
  • The Stolen Prince of Cloudburst
    HONOUR BOOK: 2021 CBCA Book of the Year, Younger Readers SHORT-LISTED: 2021 Prime Minister's Literary Awards, Children's Literature SHORT-LISTED: 2021 Queensland Literary Awards, Children's Book Award Long ago, the little Prince of Cloudburst was stolen from the seashore by a Water Sprite. Now, ten years later, the prince has found his way home. The King and Queen are planning the...
    By Jaclyn Moriarty
    Hardback
    $2600
    Elsewhere:
    $2799
    Available
    Ships in 4-6 weeks
  • Begin, End, Begin
    WINNER OF A 2018 BOOK OF THE YEAR ABIA Bestsellers. Award-winners. Superstars. This anthology has them all. With brilliantly entertaining short stories from beloved young adult authors Amie Kaufman, Melissa Keil, Will Kostakis, Ellie Marney, Jaclyn Moriarty, Michael Pryor, Alice Pung, Gabrielle Tozer, Lili Wilkinson, and Danielle Binks, this all-new collection will show the world exactly how much there is...
    By Amie Kaufman and Ellie Marney and Melissa Keil and Lili Wilkinson and Gabrielle Tozer and Will Kostakis and Michael Pryor and Danielle Binks and Jaclyn Moriarty
    Paperback
    $2100
    Elsewhere:
    $2299
    In Stock
    Ships Tuesday
  • The Astonishing Chronicles of Oscar from Elsewhere
    Let me get this straight. I'm on a trip with the following people: 1) Bronte, a girl who makes magical 'Spellbinding' rings, 2) Alejandro, a former pirate/current prince who can shoot arrows and make fire from stones, 3) Imogen, who can read broken maps and is a kickboxing master, 4) Esther, who saved her entire world from some kind of...
    By Jaclyn Moriarty
    Hardback
    $2600
    Elsewhere:
    $2799
    In Stock
    Ships Tuesday
  • The Slightly Alarming Tale of the Whispering Wars
    WINNER: 2019 QLD Literary Awards, Griffith University Children's Book AwardSHORT-LISTED: 2019 CBCA Book of the Year, Younger Readers I was taken by Whisperers at 2pm, so I never pulled the lever for the laundry chute. That's what bothered me most. This is way ahead in the story, though. A lot happened before that. The town of Spindrift is frequented by...
    By Jaclyn Moriarty
    Paperback
    $2299
    Available
    Ships in 4-6 weeks
  • Time Travel for Beginners
    New Release
    Time Travel for Beginners
    ‘A quiet Sydney shop offers impossible journeys to those who need them most.’—The Australian, ‘the big books of 2026’ If you could revisit one moment in your life, what would it be? On a bustling road in Sydney lies a nondescript storefront known simply as the Time Travel Agency. Inside, you’ll be welcomed by the smell of freshly brewed coffee,...
    By Jaclyn Moriarty
    Paperback
    $3199
    Elsewhere:
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    In Stock
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  • The Extremely Inconvenient Adventures of Bronte Mettlestone
    NOTABLE BOOK: 2018 CBCA Book of the Year, Younger Readers I was ten years old when my parents were killed by pirates. This did not bother me as much as you might think - I hardly knew my parents. Bronte Mettlestone's parents ran away to have adventures when she was a baby, leaving her to be raised by her Aunt...
    By Jaclyn Moriarty
    Hardback
    Sold Out

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