“Book Descriptions: Mary Roberts Rinehart is truly America's mistress of mystery. She is the author of over sixty chilling masterworks, and her millions of fans are a testament to her unequalled skill at weaving intrigue and villainy into spine-tingling tales of suspense. In "The Episode of the Wandering Knife", Rinehart delivers an ingenious mystery about a socialite who sets out to solve a shocking serial murder.
When her sister-in-law Isabel is found viciously slashed to death, savvy young socialite Judy Shepard realizes this isn't your everyday homicide-no motive and too many suspects. But the most mind-boggling mystery of all is the murder weapon. It keeps vanishing and then turning up again in the strangest places as the corpse count mounts. Now, Judy must track down this vicious killer before the wandering knife ends its travels embedded in her own heart.