Polonius Merlyn y Pwll Glo

When Polonius the pony escapes from the coalmine where he has worked all his life, he joins a family of Travellers. As he enjoys the fresh air and freedom in their company, Polonius wants to repay the family for caring for him. When the opportunity arises to help them, Polonius uses his clever skills to save the day. Part of the Rhyngom Scheme.