Puffin Rock

Who's Been Sleeping in My Den? (3x4)

Air date: Sep 15, 2025

Oona, Baba and May visit Mossy in the Undergrowth. They discover that a mysterious visitor has been sleeping in his den - and everyone else's dens too! When Oona spots a clue, the friends set out to follow the trail and investigate. Can Detective Oona solve the case and find the culprit?