The climax in Macbeth occurs in act III, scene III, when Macbeth murders Banquo and Fleance escapes. It is the turning point in the play; prior to this event, Macbeth stays in control, and events play out in his favor. However, Banquo manages to call out to Fleance before Macbeth kills him: “O, treachery! Fly, good Fleance, fly, fly, fly / Thou mayst revenge. O slave!” From this point forward, fortune turns its favor from Macbeth. The audience is left with hope that Fleance will avenge his father’s death and fulfill the witches’ prophecy that Banquo's descendants will form a line of king