Colin’s Monster

Author: Swain, Holly

Reading age: from c 3 years

Published on 27 August 2026 by HarperCollins Publishers (Farshore) in the United Kingdom as part of 'the A Colin and Duck Story' series.

Paperback | 32 pages
279 x 220 x 5 | 180g

Colin and Duck are back – and this time, there’s something lurking in the castle dungeon!

The third book in the award-winning Colin and Duck series!

Welcome back to Colin’s Castle – where Colin and Duck have noticed a VERY strange noise! They search from top to bottom, finding rooms they have never been in before – and rooms they will never go in again. Soon there is only one place left to look … the DUNGEON!

Uh-oh! Colin and Duck have never been inside the dungeon. What – or who – is making the noise … and why?!

• Check out this seriously suspenseful picture book!

• The perfect book to share or gift during spooky season!

• A hilarious readaloud story

Colin’s Castle won the English Association 4–11 Picture Book Award 2024 and the Oxfordshire Book Awards Best Picture Book 2025.