There are 6 books in the Sidney Stone, Private Investigator series.
The Sidney Stone, Private Investigator series does not have a new book coming out soon. The latest book, The Sixth Day (Book 6), was published in February 2021.
The first book in the Sidney Stone, Private Investigator series, Cast the First Stone, was published in September 2019.
The Sidney Stone, Private Investigator series primarily falls into the Paranormal Mystery, Private Investigator and Law Enforcement genres.