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Alone at Macbeth's court, Banquo voices his suspicions that Macbeth has killed Duncan in order to fulfill the witches' prophesies. He muses that perhaps the witches' vision for his own future will also be realized, but pushes the thought from his mind. In this section, Banquo does not change in the least. He does not act to fulfill the witches prophecies, nor does he bend his sense of morality to achieve an end. Banquo continues in his original role.