NARRATOR: In the castle Macbeth is put into his armour… FX: Clink of armour. MACBETH: You - tell my lady I am about to leave for battle. BODYGUARD: Yes, my lord. MACBETH: Are the flags flying?

Macbeth and his comrade, Banquo, are returning from battle across a deserted heath when they come across three strange creatures - the 'Weird Sisters'. They tell Macbeth that he will become Thane of ...