The storm still attends the three witches as they get gather to boast of their exploits. They cast a spell as they prepare to meet Macbeth. He arrives with Banquo and both are shocked by the appearance of the witches. They greet Macbeth and inform him that he will become Thane of Cawdor and also King of Scotland. Whilst Macbeth is stunned by these prophecies, Banquo demands they inform him of his future. He is told that although he will not be King, his offspring will be. Macbeth recovers from his 'trance' and insists that the witches explain how they know these things, since they are frankly incredible. But the witches vanish as abruptly as they came.
             Macbeth and Banquo briefly discuss the 'insane' revelations they have just heard, and at that point Ross and Angus arrive to convey thanks from King Duncan. Ross tells Macbeth he has become the Thane of Cawdor. Macbeth and Banquo are both amazed, and we begin to see Macbeth's ambition unfolding through the asides or soliloquies he delivers to the audience. Banquo warns of the danger of trusting such supernatural messages, but Macbeth is lost in his own thoughts, thinking through all the implications. Eventually, he is stirred and agrees to ride towards the king. In private to Banquo, he suggests they speak about the revelations at some future point, which Banquo agrees to.
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