There are 3 books in the Adventures on the American Frontier series.
The Adventures on the American Frontier series does not have a new book coming out soon. The latest book, Mysterious Robbery on the Utah Plains (Book 3), was published in September 2003.
The first book in the Adventures on the American Frontier series, Daring Rescue at Sonora Pass, was published in September 2003.
The Adventures on the American Frontier series primarily falls into the Western, Action Adventure and Historical genres.