Summary of Act 4
In a dark cavern, a bubbling cauldron hisses and spits, and the three witches suddenly appear onstage chanting spells and adding bizarre ingredients to their stew newt. Hecate materializes and compliments the witches on their work. One of the witches then chants: “By the pricking of my thumbs, / Something wicked this way comes”. In fulfillment of the witch’s prediction, Macbeth enters. He asks the witches to reveal the truth of their prophecies to him. To answer his questions, they summon horrible apparitions, each of which offers a prediction to allay Macbeth’s fears. At Macduff’s castle, Lady Macduff accosts Ross, demanding to know why her husband has fled. She feels betrayed. Ross insists that she trust her husband’s judgment and then regretfully departs. Once he is gone, Lady Macduff tells her son that his father is dead, but the little boy perceptively argues that he is not. Malcolm speaks with Macduff, telling him that he does not trust him since he has left his family in Scotland and may be secretly working for Macbeth. To determine whether Macduff is trustworthy, Malcolm rambles on about his own vices. He admits that he wonders whether he is fit to be king, since he claims to be lustful, greedy, and violent. Ross enters. He has just arrived from Scotland, and tells Macduff that his wife and children are well. He urges Malcolm to return to his country, listing the woes that have befallen Scotland since Macbeth took the crown. Malcolm says that he will return with ten thousand soldiers lent him by the English king. Then, breaking down, Ross confesses to Macduff that Macbeth has murdered his wife and children. Macduff is crushed with grief. Malcolm urges him to turn his grief to anger, and Macduff assures him that he will inflict revenge upon Macbeth.