...and Her Chum
In the sequel, instrument trouble in Steve's new hydroplane forces Orissa and her friend and passenger Sybil to set down on a remote island. (Baum would structure a similar story, of two girls adventuring, in his final Oz book, Glinda of Oz, later in the decade.) The second novel is less an aviation tale and more of a straight adventure story than its predecessor. Baum's publisher Sumner C. Britton had the author tone down the book, telling him by letter, "You have made the story too thrilling..." for a (supposedly) female author and her fans.
Read more about this topic: The Flying Girl