Hallowe’en Party is the fifth book in which Mrs. Oliver and Poirot appear together. The novel is dedicated to P. G. Wodehouse because, Christie writes, she enjoyed his books and was glad that he enjoyed her books too. This book is the only text in Christie’s corpus in which the word “lesbian” appears. Another special feature is the identity of the victim: it is the second mystery, after Dead Man’s Folly, in which a juvenile is a victim.
Mrs. Oliver, the famous detective fiction writer, is invited by her friend, Mrs. Judith Butler, to be a guest at a party organized for school children. She agrees, and goes to The Apple Tree, where the party is to take place, to help with preparation but whilst she is …
Lee, Amy. "Hallowe'en Party". The Literary Encyclopedia. First published 07 February 2003
[https://www.litencyc.com/php/sworks.php?rec=true&UID=4832, accessed 21 February 2019.]