Skip to content

Cogheart

Book
Cogheart by Peter Bunzl

As seen:

By Peter Bunzl

avg rating

196 reviews

Some secrets change the world in a heartbeat. Lily’s life is in mortal peril.

Her father is missing and now silver-eyed men stalk her through the shadows. What could they want from her?

With her friends – Robert, the clockmaker’s son, and Malkin, her mechanical fox – Lily is plunged into a murky and menacing world. Too soon Lily realizes that those she holds dear may be the very ones to break her heart…

Murder, mayhem and mystery meet in this gripping Victorian adventure.

Reviews

18 Oct 2026

Mystery, fabulous characters, scary at times and beautifully written. One of our favourite authors.

29 Sep 2026

I loved this book - it has loads of action and adventure. Our children also really enjoyed reading Cogheart.

14 Sep 2026

An incredible thriller, I absolutely love this book. Part of the Cogheart series, this book is about an orphan called Lily with a wild heart, a boy called Robert with his life laid out for him and a mechanical fox called Malkin as they run towards excitement, danger and secrets.

24 Aug 2026

A sensational read-aloud or guided reading text for KS2, blending Victorian history with mechanical fantasy. It is a perfect launchpad for cross-curricular links to Victorian invention, science, and creative design.

15 Aug 2026

I really enjoyed reading Cogheart by Peter Bunzl because it was exciting, imaginative and full of adventure. My favourite part of the book was the unusual steampunk setting, with airships, clockwork machines and mechanical animals, which made the story feel different from other books I have read. I also liked the characters, especially Malkin, the mechanical fox, because he was funny, loyal and memorable. Overall, I would give Cogheart 5/5 stars and would recommend it to anyone who enjoys mystery, adventure and imaginative stories.

20 Jul 2026

A story full of twists and turns with strong, persevering protagonists. They are kind and inquisitive, and Lily's free spirit reminded me of myself at that age. While they face quite intense trials, the loss of parents and mistreatment from adults who are supposed to look after them, they never stop trying to find the truth and looking out for each other.

07 Jun 2026

I read this a while ago, but I remember lots of whimsical adventure and gentle jeopardy. The author conjured memorable settings and keeps it all going at a good pace. I'd recommend to confident readers, and to read it during the Winter months.

25 Sep 2025

A real page turner - I couldn't put it down!

03 Sep 2025

This book had a wonderful concept. I liked how it was set in an alternative past where steam fuelled robots worked alongside humans. An adventure story with some quite scary "baddies" who at times are believably threatening adding an intensity to the dialogue. Some interesting twists and turns to the narrative story. Whilst the key character is female, fitting with the theme of rebel girls, by the end there is quite a gang of characters who are all likeable as a team seeking justice.

25 Aug 2025

I enjoyed this book because of the happy ending and the reunion with Lily and her father.

22 Jul 2025

A great read about a fantastic adventure with bionic animals and humans. Written with great description and detail, did not put it down until I was finished!

19 Nov 2024

I liked Malkin because he was just to usefull and made the story exciting. I would reccomend it to someone who likes adventures

16 Sep 2024

Excellent adventure story!

03 Aug 2024

Kept me interested to find out what happened next.

20 Jul 2024

It kept me interested all the time. I would recommend.

02 Jul 2024

good adventure story but not my taste

16 Jun 2024

This was a surprising book.
Lilly had the cogheart in her the whole time
It was amazing!
Loved it!

23 May 2024

A little boring but the end is amazing

08 Feb 2024

It's a fantastic story with betrayal and plot twists. It was a real page turner.

16 Dec 2023

So amazing

13 Dec 2023

I recommend this book because it's really interesting and will make you not take your eyes of it.

02 Dec 2023

I recently read "Cogheart" by Peter Bunzl and I have to say, it's an absolutely delightful read. The book is set in a steampunk version of Victorian England and follows the adventures of Lily, the daughter of a famous inventor, and Robert, a clockmaker's son. The two are brought together on a mission to find Lily's missing father, encountering a cast of intriguing characters and dangerous obstacles along the way.

One of the best things about "Cogheart" is the world-building. The steampunk setting is vividly realized, with all sorts of imaginative gadgets and machines. The characters are also well-drawn, with Lily and Robert making a great duo as they work together to unravel the mystery of Lily's father's disappearance. The book is also full of action, with plenty of thrilling chase scenes and narrow escapes to keep you on the edge of your seat.

Overall, I would highly recommend "Cogheart" to anyone looking for a fun, exciting read

10 Nov 2023

An exciting and interesting story.

19 Oct 2023

It is very interesting and full of mysteries and surprises.

11 Sep 2023

I loved it!

18 Aug 2023

I read this book in school and I loved it!!! It was so good I can’t stop comparing things to the book. I recommend it to people who love a good mystery because Lily wants to find out where her papa went after his airship crashed. My favourite character is Malkin Lily’s mech fox he was built for Lily by her papa.

14 Aug 2023

This was an exciting story with a great twist. I am looking forward to reading further books in the series.

14 Aug 2023

exiting and mood changing

13 Aug 2023

I think it's an amazing book ! I would recommend this book to those who like reading different types of books and those who love adventurous books !

08 Aug 2023

Set in an alternative Victorian England we begin the story after the exciting prologue with Lily at boarding school learning deportment, etiquette, embroidery and perfect manners! Lily though has other plans and would much rather be reading adventure stories of pirates, thieves and vampires in her beloved Penny Dreadful’s. Lily is a wonderful character full of love, compassion, kindness and bravery which she draws upon as the adventure unfolds. Lily finds a new friend and ally in Robert, an apprentice watch maker, who has rescued and repaired Lily’s beloved mechanimal fox Malkin. Robert makes an amazing hero, he’s brave and incredibly loyal but also far from the perfect heroes of many books as we learn of his fears and insecurities which make him even more real and relatable.
The baddies of the story are spectacularly creepy and occasionally terrifying, bringing with them danger, fear, twists and turns they add a wonderful element to the book. As do the mechanicals, mechanimals and even the hi-bred part human, part machine characters! The many elements work well together to offer a real page turner of a book with excitement, adventure, love and loss.

Latest offers

View our other programmes