Arthur: Do you really expect me to believe that my father's spirit is responsible for these things?
Merlin: The Round Table represents everything that's changed since you became King. You told me how Uther disapproved. He's angry with you and that makes him dangerous.
Arthur: I know my father. He wouldn't do these things.
Merlin: I think he'd do anything to protect his legacy. Who knows what he's capable of?
Arthur: Enough! That's enough.