Written by Agatha Christie
Copyright 1929
[G.K.Chesterton's Father Brown] "Recovering from the setback of failing to solve their latest case, Tommy and Tuppence are recouping with some cocktails when they stumble upon their next opportunity: a famous actress, who appears to be terrified of a superstition."9th story in the collection Partners In Crime.
Here are the pages I have of it.