What is the summary of ACT IV in Macbeth, and explain the main idea of the Act.what were the witches doing in scene I and what was the statements made by the three apparitions.

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renelane eNotes educator| Certified Educator

The witches were brewing a potion and casting a spell when Macbeth enters and demands more information about his future. The show him three apparitions.

The first is of an armed head that warned him to beware of Macduff. The second is of a bloody child and told him that no man born of woman will harm Macbeth. The third is a crowned child with a tree that says "Macbeth shall never be vanquished be until Great Birnam Wood to high Dunsinane Hill shall come against him".

The main events of this act are leading to a standoff with Macbeth.

Macbeth begs for still more information and sees a procession of kings and one holds a mirror with Banquo's image on it.

Lady Macduff is angry in scene two, that her husband has left her and her son alone to defend themselves while he goes off to England.

Malcolm and Macduff are in England in scene three. Malcolm questions Macduff's loyalties, and later he is assured, they learn of the deaths of Maduff's wife and son.