The Bluebird Books is a series of novels popular with teenage girls in the 1910s and 1920s. The series was begun by L. Frank Baum using his Edith Van Dyne pseudonym, then continued by at least three others, all using the same pseudonym. Baum wrote the first four books in the series, possibly with help from his son, Harry Neal Baum, on the third.

The books are concerned with adolescent girl detectives— a concept Baum had experimented with earlier, in The Daring Twins (1911) and Phoebe Daring (1912). The Bluebird series began with Mary Louise, originally written as a tribute to Baum’s favorite sister, Mary Louise Baum Brewster. Baum’s publisher, Reilly & Britton, rejected that manu...

The 10th and final book in the series for adolescent girls sees two of the three cousins react to atrocities in World War I by volunteering in the Red Cross. Written under the pseudonym of Edith Van Dyne, this is the 1915 version, which reflects United States' neutrality. A later version, published in 1918, differed significantly to reflect changes in the position of the United States.

This is another "TWINKLE TALE" from Mr. Baum (written under the pen name Laura Bancroft) and celebrates the further adventures of Twinkle and Chubbins as they magically become child-larks and live the exciting, and often dangerous, life of birds in the forest.

Aunt Jane's Nieces on Vacation is a juvenile novel for girls, written by L. Frank Baum. It is the seventh in the ten volumes in the Aunt Jane's Nieces series, and carries forward the continuing story of the three cousins Lousie Merrick Weldon, Patsy Doyle, and Elizabeth De Graf. Like all the books in the series, it was issued under Baum's "Edith Van Dyne" pseudonym.

After visiting Louise, Arthur and Toodlums at their ranch in Southern California, Beth and Patsy, together with Uncle John, decide to spend the winter at an hotel in the little village of Hollywood, where they get drawn into the new motion picture industry. New friends, adventures and mysteries await.

Written under pseudonym of Edith Van Dyne. The story continues the adventures of three cousins, Louise, Patsy and Beth,with their debuts in society and the appearance of suitors, one of whom is rejected and kidnaps Louise.

In 1910, Baum hoped to end the Oz series and follow with a new series about a little girl named Trot and her sailor companion, Cap’n Bill. The Sea Fairies (1911) was the first book in the projected series and took Trot and Cap’n Bill under the sea where they had adventures with mermaids and other fantastic creatures. It was followed by Sky Island (1912) and then Baum returned to the Oz titles. He brought Trot and Cap’n Bill to Oz in the Scarecrow of Oz (1915).

The Marvelous Land of Oz Being an account of the further adventures of the Scarecrow and Tin Woodman and also the strange experiences of the highly magnified Woggle-Bug, Jack Pumpkin-head, the Animated Saw-Horse and the Gump; the story being A Sequel to The Wizard of Oz.

Dot and Tot of Merryland is a 1901 novel by L. Frank Baum. After Baum wrote The Wonderful Wizard of Oz, he wrote this story about the adventures of a little girl named Dot and a little boy named Tot in a land reached by floating on a river that flowed through a tunnel. The land was called Merryland and was split into seven valleys.