Susan is an original young heroine in an original set-up. She lives with her aunt, a teacher-writer, in a dormitory, but for a change, they move to an apartment. There Susan makes friends, helps solve the mystery of some important letters her aunt is seeking for research, and at last achieves her very biggest ambition, which is to own a dog. Here are the small pleasant adventures and every day joys as they happened to a sensitive, poetic young girl, in present day Texas. Although there is a well-behaved boy in the book, it is limited to the young miss audience.