The Railway Children

When Father goes away with two strangers one evening; the lives of Roberta; Peter and Phyllis are shattered. They and their mother have to move from their comfortable London home to go and live in a simple country cottage; where Mother writes books to make ends meet. However; they soon come to love the railway that runs near their cottage; and they make a habit of waving to the Old Gentleman who rides on it. They befriend the porter; Perks; and through him learn railway lore and much else. They have many adventures; and when they save a train from disaster; they are helped by the Old Gentleman to solve the mystery of their father's disappearance; and the family is happily reunited.