There are 4 books in the John Spencer Lubbock series.
The John Spencer Lubbock series does not have a new book coming out soon. The latest book, Shadows on the Sand (Book 4), was published in January 1995.
The first book in the John Spencer Lubbock series, The Cross of San Vicente, was published in January 1991.
The John Spencer Lubbock series primarily falls into the Historical Mystery genre.