Some secrets change the world in a heartbeat… Murder, mayhem and mystery meet in this gripping Victorian steampunk adventure!


A missing locket. A woman vanished. A convict on the run… It’s hard to escape secrets of the past in this thrilling tale of catastrophe and courage!


Old secrets can weigh heavy when you want to fly… A spectacular showstopper of treachery, trickery and tightropes!

Create Cogheart Puppets

Create your own paper puppets from Cogheart and Skycircus…

Make a robot animation

Make a robot roller animation flip-book…

Complete the Cogheart wordsearch

Find ten Cogheart related words with this daring and dastardly word search!

Cogheart Reviews

“Fantastically imaginative… With great style and panache, the novel deftly winds through the intricacies of friendship and moral choice while maintaining a fun edge.”

Publishers Weekly
Publishers Weekly

“Introduces dastardly villains, friendly mechanicals, and thrilling airship action… with hair-raising and cinematic charm.”

Kirkus Review
Kirkus Review