A Stone with Wings
Clancy is a dreamy boy who has lots of "idea time". His family understands this and his teachers understand this, but sometimes the children in his class do not. They occasionally laugh at his ideas and think what he says is silly. But when the willow tree takes him to the foothills of the Himalayas to help the local animals find a mythical source of water, it is precisely those "silly" ideas that help him find it.