There are 5 books in the Wyndham and Banerjee series.
The Wyndham and Banerjee series does not have a new book coming out soon. The latest book, The Shadows of Men (Book 5), was published in November 2021.
The first book in the Wyndham and Banerjee series, A Rising Man, was published in May 2017.
The Wyndham and Banerjee series primarily falls into the Historical Police Procedural and Mystery genres.