Duncan's son Malcolm is depicted as the perfect king. In his testing of Macduff, he lists the "king-becoming graces" , such as justice, verity, temperance, mercy, lowliness etc., showing his awareness of how a king should be. He has his father's noble character but without Duncan's fatal flaw of gullibility. He tells Macduff that he is aware Macbeth has tried to entice him back to Scotland to his death, and shrewdly tests Macduff for signs of being a dishonest flatterer. A metaphor describes Malcolm's healing role: he will be "the medicine" for his country. He restores order to Scotland after the disruption caused by Macbeth.