Hetty Feather - Series 5: 6. The Parchment - Audio Described

Name: Hetty Feather - Series 5: 6. The Parchment - Audio Described
Description: The gang realise they need to break through a wall to get to the jewel - but can they do it without being discovered?

The gang realise they need to break through a wall to get to the jewel - but can they do it without being discovered?