<P> Isidore develops friendships with the three android fugitives, and they all watch a television program giving definitive evidence that Mercerism is a hoax . Roy Baty tells Isidore that the show was produced by androids to discredit Mercerism and blur the distinction with humans . Suddenly Deckard enters the building, with supernatural premonitions of Mercer appearing to both him and Isidore . Since they attack him first, Deckard is legally justified in shooting down all three androids without testing them . Isidore is devastated, and Deckard is soon rewarded for a record number of Nexus - 6 kills in a single day . When Deckard returns home, he finds Iran grieving because Rachael Rosen had recently shown up and killed their goat . </P> <P> Deckard goes to an uninhabited, obliterated region of Oregon to reflect . He climbs a hill when he is hit by falling rocks and realizes this is an experience eerily similar to Mercer's martyrdom . Rushing back to his car, he stumbles abruptly upon a toad, an animal previously thought to be extinct, and one of the animals sacred to Mercer . With newfound joy, Deckard brings the toad home, where Iran quickly discovers it is just a robot . While Deckard is unhappy, he decides that he at least prefers to know the truth, making the remark that "the electrical things have their lives too, paltry as those lives are ." </P> <P> In 1982, Hampton Fancher and David Peoples wrote a loose cinematic adaptation that became the film Blade Runner, featuring several of the novel's characters . It was directed by Ridley Scott . Following the international success of the film, the title Blade Runner was adopted for some later editions of the novel, although the term itself was not used in the original . </P> <P> As part of their Dangerous Visions dystopia series in 2014, BBC Radio 4 broadcast a two - part adaptation of the novel . It was produced and directed by Sasha Yevtushenko from an adaption by Jonathan Holloway . It stars James Purefoy as Rick Deckard and Jessica Raine as Rachael Rosen . The episodes were originally broadcast on Sunday 15 June and 22 June 2014 . </P>

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