Act 4

• Act 4, Scene 1 - Macbeth meets the witches again and receives three apparitions about his future: to beware of Macduff, that no one of "woman born" can harm him, and that he will never be defeated until "Birnam Wood [come] to high Dunsinane hill".
• Act 4, Scene 2 - Lady Macduff describes Macduff as a traitor, saying he has betrayed her by going to England. Macbeth has Lady Macduff and their son killed.
• Act 4, Scene 3 - Malcolm tests Macduff loyalty and decides to trust him. Ross arrives and tells them they need to go back to Scotland. He later tells Macduff that Macbeth has killed his wife and child, Malcolm tells Macduff to take revenge.