Bill Crider, BETWEEN THE LIVING AND THE DEAD
This is a mystery that involves a supposedly haunted house, and although the possibility of a genuine haunting remain open, the mystery is solved by using this-worldly methods. As usual Dan Rhodes is unflappable, and it is even more apparent in this book than in the others that, although he strictly enforces the law, he does not demonize the criminal. He is well aware that only a thin line and a certain amount of luck separates those who stay within the boundaries of the law from those who stray.
This is a series that has gotten better with time, and I highly recommend it for its humor, the solid, and the level-headed protagonist.