Macbeth and Banquo discuss what had just happened between one another, but is then interrupted by Ross. He then informs Duncan that the king has made him thane of Cawdor and Macbeth is astonished that the witches prophecy is true. He then wonders on how he will become king. As they begin to leave Banquo tells macbeth he wants to speak in private with him later.
The execution of cawdor's thane was successful, he died proudly and repented his crimes.
Duncan thanks Banquo and Macbeth for their bravery in battle, Duncan then tells Macbeth that he is the Thane of Cawdor. He announces that Malcolm will be the heir to the throne. They then plan to done at Macbeth's castle, Macbeth then proceeds to inform his wife of the kings soon arrival.