A very well recieved series by Andrew Neiderman are the contemporary suspense Casteel books, featuring mystery and dark tropes. The highest rated books are Flowers in the Attic: A Stage Play, Fallen Hearts, Web of Dreams and The Need. Andrew Neiderman's latest book is The Shadows of Foxworth which was published in 2020.
Want to know where to start? You might like Heaven (Casteel #1).