A Cogheart Adventure Series by Peter Bunzl 4 Books Collection Set - Fiction - Paperback

Titles in This Set:
Cogheart
Moonlocket
Skycircus
Shadowsea

Format: Paperback

Overview:
Dive into the Cogheart Adventures with this complete four-book collection by Peter Bunzl. Set in a vividly imagined Victorian world where clockwork and invention mingle with danger, these four standalone stories follow Lily, a brave girl whose life is upended when her father vanishes and silver-eyed figures stalk the streets. With the loyal help of Robert, the clockmaker’s son, and Malkin, her clever mechanical fox, Lily faces conspiracies, peril, and heart-stopping twists that keep turning the gears of the plot. The tone blends thrilling adventure with warm friendships, witty dialogue, and inventive gadgets that spark the imagination. This paperback set serves as a perfect entry point for confident middle-grade readers and a satisfying binge for fans of immersive, character-driven quests. Across the quartet, Bunzl builds a cohesive, enchanting world where courage, curiosity, and collaboration outpace danger—an invitation to re-enter a beloved steam-powered universe again and again.

What This Collection Covers:
This four-book collection traces Lily’s journey through a richly textured, clockwork London and beyond, expanding the scope with each installment. In Cogheart, the mystery begins in earnest as Lily confronts powerful enemies who value secrets over safety. Moonlocket deepens the conspiracy, introducing a formidable adversary and a perilous chase that tests Lily’s resolve and trust in friends. Skycircus shifts the horizon to a dazzling, peril-filled circus world where danger lurks beneath the bright banners and performers’ smiles. Shadowsea plunges readers into a striking voyage filled with treachery and triumph, where the stakes grow ever higher and the bonds among Lily, Robert, and Malkin prove essential. Together, the four novels explore themes of resilience, loyalty, and the cost of secrets, all wrapped in fast-paced mystery and atmospheric invention.

Book-by-Book Guide:
Cogheart
Lily’s world shatters when her father disappears and ominous, silver-eyed figures emerge from the fog. Guided by Robert and the wily mechanical fox Malkin, she steps into a city of hidden laboratories and treacherous alliances. The debut installment introduces a gripping blend of steampunk invention and suspense as Lily learns to trust her instincts, decipher threats, and outwit those who would see her world fall apart. As the clockwork gears turn, loyalties are tested and a daring plan begins to take shape, setting the tempo for the adventures that follow in this beloved series. This opening tale establishes a tense, page-turning mood with warmth and wit that invites readers to keep turning the pages.

Moonlocket
Lily and Robert face a new menace as a criminal mastermind hunts the enigmatic Moonlocket itself. The action tightens as past secrets from Robert’s history surface, heightening the danger and raising the stakes for everyone they hold dear. Malkin remains a steadfast ally, combining clever tricks with loyal companionship as the pair navigate a labyrinth of deception, explosive chases, and intricate scheming. The story balances rousing set-pieces with character growth, as Lily’s resilience and ingenuity are pushed to new limits. With its twist-filled plot and escalating peril, Moonlocket deepens the world while expanding the emotional payoff for readers who have grown attached to this brave trio.

Skycircus
In a world of wonder and danger, Lily and friends venture into a dazzling traveling circus, where spectacle masks a deadly trap. Madame Lyons-Mane’s stagecraft conceals more than acrobats and music, and Lily must piece together fragments of her past to uncover the truth behind the peril. The narrative intensifies as the circus’s bright lights cast long shadows, and the duo’s alliance with Malkin becomes crucial to escape and survival. Skycircus blends high-energy action with mystery-driven twists, delivering a visually rich, emotionally resonant chapter in the collection that tests loyalties and reveals hidden strengths.

Shadowsea
The quartet closes with a bold voyage into perilous waters and uncharted territories. A submarine-like vessel and a crew of unlikely heroes push Lily, Robert, and Malkin toward a climactic confrontation against formidable forces. The journey forges deeper trust between the trio as they confront fear, courage, and the truth behind their shared history. Shadowsea is a game-changing finale, combining atmospheric imagination with emotional stakes and a triumphant sense of closure that will satisfy readers who have followed the series from the start.

Who This Set Is Perfect For:
Young readers 9+ who love immersive, character-driven adventures will treasure this four-book collection. It’s ideal for fans of Victorian-inspired fantasy, mystery-driven plots, and steampunk aesthetics, as well as for families seeking gripping, page-turning reads to enjoy together. Gift buyers will find a complete, ready-made reading journey that builds a confident reading habit and encourages curiosity about history, science, and inventive storytelling. Teachers and librarians can use these titles to spark discussions about invention, resilience, and teamwork, while curious readers who enjoy a continuous series will appreciate the satisfying arc across four compelling narratives.

Key Benefits:

• Complete four-book set for a cohesive reading journey
• Engaging Victorian steampunk mood with modern suspense
• Strong, resourceful heroine and loyal friends as anchors
• Accessible paperback editions ideal for individual or group reading
• Excellent gift set for ages 9+, encouraging reading confidence
• Rich world-building with inventive gadgets and imaginative settings

About the Author:
Peter Bunzl is a BAFTA-winning animator, writer, and filmmaker best known for The Cogheart Adventures. His debut novel, Cogheart, earned critical acclaim, being shortlisted for the Waterstones Children’s Book Prize and the Branford Boase Award, and was highlighted as a World Book Day favourite. Bunzl’s work is celebrated for its inventive blend of steampunk technology, perilous quests, and accessible, character-driven storytelling that invites readers to imagine extraordinary possibilities. Across Cogheart, Moonlocket, Skycircus, and Shadowsea, his distinctive voice threads curiosity, courage, and friendship through thrilling plots, creating a cohesive, immersive reading experience for middle-grade audiences and beyond.

Why You’ll Love This Set:
This four-book collection offers a complete, self-contained journey through Lily’s clockwork world, making it an ideal stand-alone binge or a thoughtful gift that grows with a reader. The mix of mystery, adventure, and clever inventions keeps pages turning while delivering heartfelt moments of friendship and resilience. Owning the full set means instant access to four uniquely engaging stories, each expanding the universe and inviting new readers to return for more while rewarding longtime fans with deeper lore and richer character insights.

Please Note: The individual books included in this listing will be dispatched as per the original UK ISBN and UK edition cover image shown in the image.