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Arnold knows the mountain moans and is proved right when he, Charlie and Lewis make an expedition to it's foot. They follow the moaning sound throughout the mountain's caves and underground lakes to find Bert, a lonely monster who's been trapped inside.

Writing:
  • Ivor Wood
  • Woodland Animations

Stars:
Release Date: 1988-10-20
Seasons: 1
TMDb: 5.6/10
  • Country: GB
  • Language: English
  • Runtime: 15

Other episodes for this season

Shipwrecked Charlie
Episode 1 - Shipwrecked Charlie
Arnold's Night Out
Episode 2 - Arnold's Night Out
The Coconut Harvest
Episode 3 - The Coconut Harvest
The Sneezes
Episode 4 - The Sneezes
Jumping Bananas
Episode 5 - Jumping Bananas
The Mountain That Moaned
Episode 6 - The Mountain That Moaned
Edward Keeps Fit
Episode 7 - Edward Keeps Fit
The Feast
Episode 8 - The Feast
There Are No Roads On Merrytwit
Episode 9 - There Are No Roads On Mer...
Mildred's Day Off
Episode 10 - Mildred's Day Off
Bert's Boring Day
Episode 11 - Bert's Boring Day
Return Of The Litter
Episode 12 - Return Of The Litter
Goodbye, Hello
Episode 13 - Goodbye, Hello