There are 3 books in the Sword of the Spirits series.
The Sword of the Spirits series does not have a new book coming out soon. The latest book, The Sword of the Spirits (Book 3), was published in December 1972.
The first book in the Sword of the Spirits series, The Prince in Waiting, was published in March 1974.
The Sword of the Spirits series primarily falls into the General Fiction genre.