in this scene we have the results of Lady Macbeths and Macbeth’s evil deeds coming to light, in this scene we have Mcduff who came to meet Duncan however when they realise that Duncan had not woken up yet. Macbeth said that he had not known why he had not woken up. this was a display for dramatic irony because we know from the scene before that Macbeth has killed, once Macbeth has disappeared Lady Macbeth has entered, she acts as though she has no idea what is going on or happening, once she hears this news about Duncan she then pretends to faint

the only person here fears at this time is banquo