And, now, at last, the Ghost talks to Hamlet. It claims, indeed, to be his father, who "walks the night," but in the day experiences a hellish existence, part of a kind of purgatory to burn away the sins of his life. He tells Hamlet that, if he knew about his sufferings, Hamlet's hairs would stand up like the quills of a "fretful porcupine." His father then asks him to avenge his murder. Indeed, it is Claudius who seduced his queen, an act of incest to his father, and then killed him by pouring the poison, habenon, in his ears while he.....