There are 5 books in the Witch Duff's Book of Secrets series.
The Witch Duff's Book of Secrets series does not have a new book coming out soon. The latest book, Keeper of the Unicorns (Book 5), was published in September 2014.
The first book in the Witch Duff's Book of Secrets series, The Rose and the Daisy, was published in February 2013.
The Witch Duff's Book of Secrets series primarily falls into the Action Adventure and Fantasy genres.