By sheer coincidence, Mark Easterbrook comes into contact with the list of names. Slowly, he discovers that the list is a list of victims. The girl at the cafe, his god-mother, a friend etc. ...Were these people being blackmailed? Or something more sinister? What was the dying woman involved in?
Mark Easterbrook believes from the onset that the list contains the names of dead people. He finds that many of the names are known to him as of people who have recently died. This list becomes connected in his mind with a name: the "Pale Horse" (a hugely coincidental connection). Casually mentioned by an empty headed girl at lunch one day, the place apparently deals with murdering people for money. Shortly, he himself travels to the Pale Horse and meets Thyrza Grey, its mysterious owner. At first inclined to dismiss the superstition attached to the place as ridiculous, he finds himself horrified by the rantings of its occupants. Thyrza Grey apparently believes in the concept of being able to kill people by suggestion. A lot of scientific jargon popular in Christie's day is used and 'thought-waves' and 'mediums' are considered as the supernatural basis for the deaths as the victims - all rich - supposedly suffered a natural death.
The young historian finds himself in a curious position. He confides his suspicions to Ginger, a girl he met in the locality of the Pale Horse. Together, they hatch up a plan to approach the people involved as prospective clients. In a dangerous situation, it is in the end Inspector Lejeune who uncovers the true leader behind the ring.
Re-reading was more fun than I thought. The Pale Horse had some interesting characters and a small romance to round it all off. I always enjoy Agatha Christie's depiction of characters. Mark Easterbrook, although somewhat credulous as far as 'thought-projection' and 'waves' are concerned, was a reliable and intelligent hero. He provides most of the narration in the novel which ends on the normal twist: whodunnit is never so simple in Agatha's mystery novels. It's the suspense that keeps you hooked till the end.
The Pale Horse is one of Agatha's later mysteries. Published in 1961, it contains famous characters Ariadne Oliver the detective fiction writer, Rev and Mrs. Dane Calthrop (also in The Moving Finger) and Colonel and Mrs. Despard (also in Cards on the Table).
I categorized this novel as one with the 'young couple'. Agatha Christie occasionally stereotyped her characters. This is most apparent in novels with Miss Marple, whose method consists of ascertaining 'types' of people. Although it was generally done with foreigners to make it easier for her readers to understand them, in my opinion it stretched to the protagonists in certain novels.