However on a desolate heath on the way to King Duncan's camp they come across three strange creatures - the 'Weird Sisters', or Witches. The Sisters seem to know exactly who Macbeth and Banquo are.

In particular there was a fascination with witches and ... (Act 1 Scene 3) Analysis Before the first murder of the play takes place there is a slow build up as Macbeth wrestles with his conscience.