Police at the Funeral tea. Campion heads to the house and meets the famous Caroline Faraday, who hires him to help them resolve matters. Oates analyses the teacup and finds traces of conium poison (hemlock, the poison that was used to execute Socrates, and one of the species in the carrot genus, including dill, and parsnip), while Campion finds a stash of weight-loss pills in Julia's room. Uncle William approaches Marcus, telling him he has been suffering from blackouts, and Campion also finds the old man's service revolver is missing, along with some cord from the same (unused) room. Later, Campion finds William in
Poison "gu" poison. Poison was also employed in gunpowder warfare. For example, the 14th-century Chinese text of the "Huolongjing" written by Jiao Yu outlined the use of a poisonous gunpowder mixture to fill cast iron grenade bombs. The term "poison" is also used in a figurative sense. The "[s]lang sense of "alcoholic drink" [is] first attested 1805, American English." (e.g., a bartender might ask a customer "what's your poison?") Figurative use of the term dates from the late 15th century. Figuratively referring to persons as poison dates from 1910. The figurative term "poison-pen letter" became well known in "...1913 by a