
Mrs Lancaster mentioned “ten past eleven”, though, while Ardingly’s recollection placed the mentioned time at “12.10”.

Mrs Lancaster from By the Pricking of My Thumbs may have been mentioned in a conversation, when one of the characters, David Ardingly, mentions how he met an old lady in a mental home who says exactly the same phrase which chilled Tuppence to the bone, and which had a similar effect on Ardingly. Mrs Oliver is apprehensive of attending a fete, for reasons that will be apparent to readers of her previous appearance in a Christie novel: Dead Man’s Folly. Mrs Dane Calthrop from The Moving Finger also reappears in approximately the same role as she played in that book: the rational but devoted Christian who wants the evil stopped. In addition to Ariadne Oliver, Major Despard and his wife Rhoda (who met and fell in love in Cards on the Table) also participate in the plot. This novel is notable as several of her earlier characters reappear in this book. The Pale Horse is mentioned in Revelation 6:8, where it is ridden by Death.

The novel features her novelist detective Ariadne Oliver as a minor character, and reflects in tone the supernatural novels of Dennis Wheatley who was then at the height of his popularity. The UK edition retailed at fifteen shillings (15/- = 75p) and the US edition at $3.75. The Pale Horse is a work of detective fiction by British writer Agatha Christie, first published in the UK by the Collins Crime Club on 6 November 1961, and in the US by Dodd, Mead and Company the following year.
