sentences:  Instead he intends to leave the dagger with a letter, so the Duke will know Guido had him in his power and chose to spare him.Moranzone calls him a coward and bad son, and blames his contact with the Duchess for his change of heart.While Guido prays alone that he has done the right thing, the Duchess enters, and tells him there is nothing separating them any more - because she has killed the Duke.