Lady Minerva Hesketh-Dubois - Poisoned with thallium
Thomasina Tuckerton - Poisoned with thallium
Mrs Davis - Poisoned with thallium
Father Patrick Gorman - Bludgeoned
Captain Rupert Cottam - Poisoned with a lethal overdose of Spanish fly aphrodisiac
This episode is based on Agatha Christie's 1961 novel of the same name, which orginally featured novelist Ariadne Oliver, a recurring character in the Poirot novels. The novel had a gothic horror tone, its name taken from a passage in the Book of Revelation.