Under the pen name "Edith Van Dyne," Wizard of Oz author L. Frank Baum created the memorable character Mary Louise, a spirited teenager with a knack for solving mysteries and righting injustices. In Mary Louise and the Liberty Girls, the heroine and her chums contribute to the war effort.

"Edith Van Dyne" is the pseudonym under which L. Frank Baum penned a popular series of novels for younger audiences. In this tale, indefatigable heroine Mary Louise finds out that her beloved grandfather has been accused of treason and works tirelessly to clear his name and restore his reputation.

Mary Louise and the Liberty Girls By L. Frank Baum