Aunt Jane's Nieces and Uncle John picks up the continuing story of the three cousins Patsy Doyle, Beth De Graf, and Louise Merrick, and their family; the plot of the book begins three days after the wedding of Louise and her fiance Arthur Weldon. The sixth novel begins with the cousins' Uncle John getting an inspiration for a new adventure: in this case, the family will escape a cold New York City winter by taking a trip to southern California, the land of "sunshine and roses."

Aunt Jane's Nieces Series is a collection of ten novels designed for young adolescent girls written under the pseudonym Edith Van Dyne. Jane Merrick is a wealthy, elderly, difficult invalid woman who is preparing for her approaching death. In her youth, she inherited her money and estate from her fiancé, Thomas Bradley, who died before their wedding took place. With no children of her own, she calls for her three teenaged nieces to visit her, so she can decide who will inherit her estate. They are Louise Merrick, Elizabeth De Graf, and Patsy Doyle, children of Jane's younger brother and sisters. Each of the three cousins is a different type. It was the author's second greatest series, but towards the end of Baum's life they outsold the Oz books. L. Frank Baum (1856-1919) was an American author chiefly known for his children's books. Table of Contents: Aunt Jane's Nieces Aunt Jane's Nieces Abroad Aunt Jane's Nieces at Millville Aunt Jane's Nieces at Work Aunt Jane's Nieces in Society Aunt Jane's Nieces and Uncle John Aunt Jane's Nieces on Vacation Aunt Jane's Nieces on the Ranch Aunt Jane's Nieces Out West Aunt Jane's Nieces in the Red Cross

Table of Contents Chapter I—UNCLE JOHN DECIDES Chapter II—EL CAJON RANCH Chapter III—THAT BLESSED BABY! Chapter IV—LITTLE JANE’S TWO NURSES Chapter V—INEZ THREATENS Chapter VI—A DINNER WITH THE NEIGHBORS Chapter VII—GONE! Chapter VIII—VERY MYSTERIOUS Chapter IX—A FRUITLESS SEARCH Chapter X—CONJECTURES AND ABSURDITIES Chapter XI—THE MAJOR ENCOUNTERS THE GHOST Chapter XII—ANOTHER DISAPPEARANCE Chapter XIII—THE WAY IT HAPPENED Chapter XIV—PRISONERS OF THE WALL Chapter XV—MILDRED CONFIDES IN INEZ Chapter XVI—AN UNEXPECTED ARRIVAL Chapter XVII—THE PRODIGAL SON Chapter XVIII—LACES AND GOLD Chapter XIX—INEZ AND MIGUEL Chapter XX—MR. RUNYON’S DISCOVERY Chapter XXI—A FORTUNE IN TATTERS Chapter XXII—FAITHFUL AND TRUE