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?!

¿ Love Traitors? 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.