Four young orphans discover an abandoned boxcar and move in, embarking on a life of self-reliance and hard work - but also freedom and adventure. Reprint of the original 1924 edition, which launched the million-copy series. Ranked among the all-time "Top 100 Chapter Books," or children's novels, in a School Library Journal survey, the book is also among the National Education Association's "Teachers' Top 100 Books for Children."