Jacko Argyle dies in prison after being convicted for the murder of his mother, but when Dr. Arthur Calgary proves the boy's innocence old wounds from the rest of the family are opened, and Dr. Calgary wonders if one of them is the real murderer.--

When an elderly priest is murdered, the killer searches the victim so roughly that his already ragged cassock is torn in the process. What was the killer looking for? And what had a dying woman confided to the priest on her deathbed only hours earlier? Mark Easterbrook and his sidekick Ginger Corrigan are determined to find out. Maybe the three women who run The Pale Horse public house, and who are rumored to practice the 'Dark Arts,' can provide...

At the request of his friend Ariadne (an eccentric mystery lover based on Christie herself), Hercule arrives at a sprawling estate to partake in a weekend game of mock murder. But when the victim appears far too dead, the game stops and the detective work begins.

Sir Stafford Nye's flight home from Malaya takes an unprecedented twist when a young woman confides in him that someone is trying to kill her. In a moment of weakness, he agrees to lend her his passport. Unwittingly, the diplomat has put his own life on the line. When he meets the mystery woman again, she is a different person, and he finds himself drawn into a battle against an invisible?and altogether more dangerous?enemy. . . .