Framed in the doorway of Hercule Poirot's bedroom stands an uninvited guest, coated from head to foot in dust. The man stares for a moment, then he sways and falls. Who is he? Is he suffering from shock or just exhaustion? Above all, what is the significance of the figure 4, scribbled over and over again on a sheet of paper? Poirot finds himself plunged into a world of international intrigue, risking his life--and that of his 'twin brother'--to uncover...

An urgent cry for help brings Poirot to France. But he arrives too late to save his client, whose brutally stabbed body now lies face downwards in a shallow grave on a golf course. But why is the dead man wearing his son's overcoat? And who was the impassioned love-letter in the pocket for? Before Poirot can answer these questions, the case is turned upside down by the discovery of a second, identically murdered corpse...

"Each day is a struggle for Amanda Gleason's newborn son as he battles a rare immune deficiency. Justin's best chance for a cure lies with his father, who was brutally murdered before Amanda even realized she carried his child. Or was he? One emailed photo changes everything, planting a seed of doubt that Amanda latches on to for dear life: a recent photo of a man who looks exactly like Paul. Could Justin's father be alive? The mother in her is desperate...

Jack Till, who has retired from the LAPD after a respected career as a homicide detective, now works as a private investigator, comfortable chasing down routine cases while visiting his 24-year-old daughter, Holly, who has Down Syndrome. But when the parents of a recently murdered young girl, about Holly's age, ask for his help when the police come up empty, Till reluctantly takes the case. It was discovered after her death that the victim had been...

Frank Marr knows crime in Washington, DC. A decorated former police detective, he retired early and now ekes a living as a private eye for a defense attorney. Frank Marr may be the best investigator the city has ever known, but the city doesn't know his dirty secret. A long-functioning drug addict, Frank has devoted his considerable skills to hiding his usage from others. But after accidentally discovering a kidnapped teenage girl in the home of...

Meet Lord Peter Wimsey, stylish, eccentric, seeming a fool, but in fact one of the great English detectives. The discovery of a body in a bathtub wearing only a pair of spectacles and as a noted financier has also gone missing under strange circumstances, Wimsey starts his investigation. As the case progresses it becomes clear to the detective that the two events are linked in some way that is not at all obvious.

Narcoleptic Southie PI Mark Genevich is back-in this sequel to The Little Sleep from the Bram Stoker Award—winning author of Survivor Song and The Cabin at the End of the World. Like most private eyes, Mark Genevich is something of a lone wolf. So group therapy isn't a great fit. But his landlord/mother is convinced it will help his narcolepsy-ignoring the fact that his disorder is a physical condition. Truth is, he has the time. It's been a year...

Izzy Spellman, a licensed private investigator with her family's firm, decides to work one last cold case on a missing person before leaving the family business, but then her sister disappears.

Grieving the death of his wife, private investigator Mark Novak reluctantly accepts a case from a suspected murderer who may or may not be innocent. Novak knows all too well that some crimes never get solved. But it's not often that the man who many believe got away with murder is the one calling for the case to be reopened. Ten years ago, a teenage girl disappeared inside an elaborate cave system beneath rural farmland. Days later, Ridley Barnes...

"Nameless" had seen enough death in his years; spending his time watching someone drive to several funerals a day, funerals for people he didn't know, was more than he could take. And, he had a non-professional problem of his own: his relationship with his wife, Kerry, had hit a wall and nothing he did got him over it and to the other side. There was one possibility, one thing he'd done (or not done), but knowing that didn't seem to help... Also...