Bemelmans' audience embraces the young and young at heart, and Holiday readers have been following this story of what happened in an Austrian Tyrol village when a hydroelectric plant changed the lives of its inhabitants. There are the Amreiners, a family of mountain herders headed by Tobias, a gentle poacher. There is the friendly gendarme who hesitates to call a halt on Tobias' activities. There are the Maybocks who keep the Inn, and the new plant official whose nasty temperament stands out against the inner goodness of the Tyroleans almost to the end. And the story comes to a climax when the newly constructed cable car plays its part in rescuing the mountain herders from an avalanche. Mountain worlds captured in text and pictures in Bemelman's characteristic style.