Hercule Poirot's Christmas: A Hercule Poirot Mystery: The Official Authorized Edition (Hercule Poirot series Book 19) Hercule Poirot's Christmas: A Hercule Poirot Mystery: The Official Authorized Edition (Hercule Poirot series Book 19) Kindle Paperback Audible Audiobook Hardcover Mass Market Paperback MP3 CD Digital