 Elements of the novel that were significantly changed for the film include the use of a (non-venomous) tarantula spider instead of a centipede; Dr. No's secret complex being disguised as a bauxite mine instead of a guano quarry; Dr. No's plot to disrupt NASA space launches from Cape Canaveral using a radio beam instead of disrupting US missile testing on Turks Island; the method of Dr. No's death by boiling in overheating reactor coolant rather than a burial under a chute of guano, and the introduction of SPECTRE, an organisation absent from the book.Components absent from the novel but added to the film include the introduction of the Bond character in a gambling casino, the introduction of Bond's semi-regular girlfriend Sylvia Trench, a fight scene with an enemy chauffeur, a fight scene to introduce Quarrel, the seduction of Miss Taro, Bond's recurring CIA ally Felix Leiter, Dr. No's partner in crime Professor Dent and Bond's controversial cold-blooded killing of this character.Sometimes episodes in the novel retained in the film's altered narrative introduce elements of absurdity into the plot.