MacDuff suspects Macbeth of having something to do with Duncan's death. This is clear in the last scene of Act II when he and Ross are speaking about Macbeth's coronation at Scone. Ross asks MacDuff if he plans to go, and MacDuff tells him he will not go. Ross replies that he is going, and MacDuff says: "Well, may you see things well done there. Adieu, lest our old robes sit easier than our new!" By this line, MacDuff is suggesting that he suspects Macbeth will make a worse King of Scotland than Duncan did, and things will not go well for them in the near future. The Old Man's last words in the Act also reflect that things are "foul" and not "fair" as they once were. He suggests by his lines that anyone who attends the coronation of Macbeth is attempting to "make good of bad and friends of foes." These words also cast doubt on Macbeth's integrity and worth as king.