50 Essential Mystery Novels including The Woman In White by Wilkie Collins, I highly recommend this large tome. It's worth your time. I love a mystery that I am unable to unravel until the author allows. And this kept me rapt until the last.
The Witching Hour by Anne Rice is the first novel in her series "Lives of the Mayfair Witches." The novel begins the tale of a family of witches, and a spirit that has guided their fortunes for generations.
Help for the Haunted by John Searles- "Struggling with the loss of her parents, who helped haunted souls find peace, Sylvie Mason pursues the mystery, moving closer to the truth of what happened that night as she comes to terms with her family's past.