A seriously toned story, geared to the early eight to eleven group rather than for reading aloud, as its format seems to indicate, this has a lot to offer as it tells of the quietly exciting relationship that develops between young Peter and old Mr. Johnson. They meet one day up on the hill and through a mutual interest in the trains that run through their valley, friendship begins. As it turns out, Mr. Johnson is a retired postman who had always wanted to be an engineer and now, when rheumatism sets in, he will not even be able to go outside to see his beloved trains any more. Peter's idea, of actually building a caboose into the roof of the Johnson's house- as a vantage point from which they can observe the valley- brings a happy solution to the problem. Ably handled geriatrics here as well as an endorsement of the kind of thing people ought to do when they feel inspired.