Banquo appears to have a very protective and affectionate attitude towards his son, instructing him to "fly, good Fleance, fly, fly, fly" when it is apparent he is under attack from Macbeth (who thinks Fleance will become king eventually, due to the Witches' prophecies, and therefore is a threat). He manages to escape, but comes abck at the end of the play to avenge his father and take the throne of Scotland, with the help of Macduff.