Act V of Macbeth sees the downfall and death of the title character. Lady Macbeth's guilt over her role in Duncan's murder has driven her mad, and she sleepwalks, trying to wash imagined blood from her hands. Meanwhile, Macbeth prepares to face the invading army at Dunsinane Castle, confident in the witches' prophecy that no man of woman born can harm him. However, during the final battle Macduff reveals that he was born by cesarean section, not born of woman, and kills Macbeth, restoring order and crowning Malcolm as the rightful king of Scotland.