act 4

• 4.1

  macbeth goes to visit the witches once more and they make further prophecies: beware macduff; none of woman born can harm him; and he will be safe until birnam wood comes to dunsinane castle. they also confirm that banquos heirs are still a threat. when he learns that macduff has fled to england to join malcolms army, macbeth orders macduff's family be murdered.
• 4.2

  macduffs wife and child are murdered
• 4.3

  macduff vows to seek revenge when malcolm tells him of macbeths heartless deed