He Who Whispers - John Dickson Carr - Bog

"When Miles Hammond is invited to a meeting of the Murder Club in London, he is met instead with just two other guests and is treated to a strange tale of an impossible crime in France from years before-the murder of a man on a tower with only one staircase, under watch at the time the murder took place. With theories of levitating vampires abounding, the story comes home to Miles when he realizes that the librarian he has just hired for his home is none other than Fay Seton, a woman whose name still echoes from the heart of this bizarre and unsolved murder of the past"--