Email Novel Suspects Logo
Hachette provides comprehensive global distribution services in the following territories:
United States flag Switch to United States region United Kingdom flag Switch to United Kingdom region Australia flag Switch to Australia region India flag Switch to India region

Hachette Book Group menu

  • Home
  • Publishers
  • Customers
  • Sustainability
  • Retailer Portal
  • Location
  • Our Culture
  • Our Careers
Go to Hachette Book Group home

Hachette Book Group menu

  • Home
  • Publishers
  • Customers
  • Sustainability
  • Retailer Portal
  • Location
  • Our Culture
  • Our Careers

By clicking “Accept,” you agree to the use of cookies and similar technologies on your device as set forth in our Cookie Policy and our Privacy Policy. Please note that certain cookies are essential for this website to function properly and do not require user consent to be deployed.

The Clockwork Key

The Clockwork Key Open the full-size image

Loading

Contributors

By Vashti Hardy

Illustrated by Rebecca Sheerin

Formats and Prices

On Sale
Jul 14, 2026
Page Count
112 pages
Publisher
Union Square Kids
ISBN-13
9781454962816

Price

$8.99

Price

$11.99 CAD

Format

Trade Paperback

Format:

Trade Paperback $8.99 $11.99 CAD

Buy from Other Retailers:

  • Amazon
  • Barnes & Noble
  • Books-A-Million
  • Bookshop
  • Target
  • Walmart

Mabel and Will Greystone are looking forward to an exciting trip with their aunt Lucy, a renowned relic hunter in the land of Marvolia.

Using an ancient map, they are searching for the legendary lost town of Umber, famous for the invention of clockwork, which was mysteriously abandoned hundreds of years ago. The only other clue they have is a strange old key left behind by the last inhabitant of the town, but they have no idea what the key is for.

Also on the hunt for Umber is devious Byron Cogsworth, who is desperate to claim the glory such an important discovery will bring. Can Mabel, Will and Aunt Lucy find Umber before him? And what secrets will the clockwork key unlock?

Genre:

  • Children's Books
  • Juvenile Fiction
  • Fantasy & Magic

Series:

  • Everyone Can Be a Reader (Middle Grade S

Vashti Hardy is the critically acclaimed and bestselling author of children’s books including the Blue Peter Book Award winner Wildspark. Vashti’s other titles include the Waterstones Children’s Book Prize shortlisted Brightstorm and the FCBG Children’s Book Award shortlisted The Griffin Gate. She divides her time between Lancashire and Sussex.

You May Also Like

The Hidden Sea
The Hidden Sea $8.99 $11.99 CAD
Which Way Around the Galaxy
Which Way Around the Galaxy $8.99
The Ink Witch
The Ink Witch $8.99 $11.99 CAD
The Black Market
The Black Market $10.99 $14.50 CAD
The Pumpkin Princess and the Buried Castle
The Pumpkin Princess and the Buried Castle $8.99 $11.99 CAD

Newsletter Signup

Get recommended reads, deals, and more from Hachette

By clicking ‘Sign Up,’ I acknowledge that I have read and agree to Hachette Book Group’s Privacy Policy and Terms of Use

Vashti Hardy

About the Author

Vashti Hardy is the critically acclaimed and bestselling author of children’s books including the Blue Peter Book Award winner Wildspark. Vashti’s other titles include the Waterstones Children’s Book Prize shortlisted Brightstorm and the FCBG Children’s Book Award shortlisted The Griffin Gate. She divides her time between Lancashire and Sussex.

Learn more about this author

Rebecca Sheerin

About the Illustrator

Learn more about this illustrator

Everyone Can Be a Reader (Middle Grade S

Reek
Reek
The Wickford Doom
The Wickford Doom
Stellar
Stellar
Monster Slayer
Monster Slayer
Lunar
Lunar
Flesh and Blood
Flesh and Blood
Still Water
Still Water
Freeze
Freeze
Seven Ghosts
Seven Ghosts
▲
HBG Distribution logo
  • FAQ
  • Vendors
  • Cookie Policy
  • Report Piracy
  • Fraud Alert
  • CPSIA
  • GPSR
© 2025 Hachette Book Group | Terms of Use | Privacy Policy | Contact Us | Do Not Sell My Personal Information