80,000+ Books in-stock in NZ ๐Ÿ“š

Blog updates โœ๏ธ Shirlโ€™s May Reads & Book Briefing

The Impossible Gladiator

Series: Time Keys
Brief Description
A complete triumph of imagination . . . readers are going to fall in love with this brilliant series - A. F. Steadman, bestselling author of Skandar. The action adventure of Gladiator meets the time travel of Doctor Who in the third title of this epic... Read More
Format: Paperback / softback
TEMPORARILY OUT OF STOCK Please add to wishlist to be notified when back in stock

Sorry, we're currently out of stock of The Impossible Gladiator. Please add to your Wishlist and we'll send you an email as soon as it's back in stock.

Follow twelve-year-old Sim's time travel adventure in Ancient Rome in The Impossible Gladiator, the third title in Time Keys, a bestselling spectacular, action-packed mystery series by multi-award-winning author M. G. Leonard.

Follow twelve-year-old Sim's time travel adventure in Ancient Rome in The Impossible Gladiator, the third title in Time Keys, a bestselling spectacular, action-packed mystery series by multi-award-winning author M. G. Leonard.

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 complete triumph of imagination . . . readers are going to fall in love with this brilliant series - A. F. Steadman, bestselling author of Skandar.

The action adventure of Gladiator meets the time travel of Doctor Who in the third title of this epic series by bestselling award-winner M. G. Leonard. Perfect for 8 to 12-year-old fans of Adventures on Trains. Supports the key stage 2 curriculum. Illustrated throughout in black and white by Manuel Sumberac.

Sim, Jeopardy and Nelson are enjoying an amazing holiday in Rome, until they are swept up in the mysterious disappearance of world-famous illusionist Kinetic. He vanished during a live broadcast from the Colosseum, but he never reappeared. When Kinetic's sister finds a strange description in a history book of a gladiator who sounds uncannily like her brother, the friends are determined to help.

They travel through secret time doors to the spectacular - and deadly - Colosseum in Ancient Rome, but can the brave trio survive long enough to find Kinetic and bring him home?

The Impossible Gladiator can be read as a stand-alone novel, or enjoyed as part of the thrilling Time Keys series written by M. G. Leonard. Follow Sim, Jeopardy and Nelson's adventures in Ancient Egypt in Hunt for the Golden Scarab, and Viking Norway in The Legend of Viking Thunder.

Praise for the Time Keys series:

Classic and fresh - a breathtaking adventure - Eoin Colfer, author of Artemis Fowl

Fabulous, fast-paced and thrilling - Jonathan Stroud, author of the Lockwood & Co. series

A thrilling time-travel adventure - The Guardian

Fast, dramatic, exciting - Hannah Gold

Thrilling adventure packed with history, mystery and action - The Week Junior

Series: Time Keys

View all

Book Details

INFORMATION

ISBN: 9781035024377

Publisher: Pan Macmillan

Format: Paperback / softback

Date Published: 12 February 2026

Country: United Kingdom

Imprint: Macmillan Children's Books

Illustration: 40 black and white

Contributors:

  • Illustrated by Manuel Sumberac

Audience: Children

DIMENSIONS

Spine width: 19.0mm

Width: 132.0mm

Height: 198.0mm

Weight: 224g

Pages: 272

About the Author

M.G. Leonard has made up stories since she was a little girl but back then people called them fibs or tall tales, so she didn't think to write them down. After a successful career in the music industry and the arts, she finally dared to put pen to paper. Her inventive stories about beetles, birds, and trains are hugely popular. Her books have been translated into over forty languages and won many awards. In this, her most ambitious series yet, M. G. Leonard combines her passion for music, love of history, and instinct for adventure, to bring readers the Time Keys books. Manuel Sumberac is a Croatian based illustrator and animator. He graduated from the Academy of Fine Arts in Zagreb where he was drawn towards the fascinating world of illustration. His work has been published and recognized in numerous book illustrations and covers, including The Dalemark Quartet, Orphans of the Tide, The Night Before Christmas and Steampunk Frankenstein, among many others. Manuel creates his illustrations using digital techniques combined with traditional media.

Also by M. G. Leonard

View all

More from Children's Books

View all

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 80,000 books 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.