A Hug For Humbug

Humbug lives with his family in the marsh.
The horses roam wild and are very shy.
A photographer takes photos of them for a calendar.
People really like the photos. One day the photographer brings a boy in a wheelchair along.
Humbug forgets to be shy. He does all sorts of silly things to make the boy smile.
It becomes a very special day and the boy promises to visit again.