In Macbeth, what happens to Fleance when Banquo is killed?

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Susan Hurn eNotes educator| Certified Educator

According to the murderer who reports to Macbeth in Act III, Fleance has escaped being killed. In the earlier scene that dramatized the assassination of Banquo, one murderer says, "There's but one down; the son is fled." A second murderer replies, "We have lost best half of our affair." Macbeth is not pleased with this news. It was his intention to kill Banquo's son so that none of Banquo's heirs could ever rule Scotland.