In Gertrude’s private chambers, Polonius and the queen hear Hamlet approach. Polonius quickly hides behind a curtain, planning to eavesdrop on the conversation between mother and son. When Hamlet enters, he’s in such a rage that Gertrude cries for help. Hearing this, Polonius echoes her cries for help, revealing his hiding place in the process. Hamlet, thinking that Polonius is actually Claudius, stabs blindly through the curtain, killing Polonius on the spot. Instead of feeling any remorse, Hamlet turns on his mother, attacking her for marrying Claudius so soon after her husband’s death. In the middle of his tirade, the ghost makes an appearance to remind Hamlet of his real goal: vengeance. Gertrude, seeing Hamlet talk to a ghost that she herself can’t see, thinks he really has lost his mind. Hamlet threatens his mother and tells her that he knows Claudius is plotting against him, but that the king will get his just desserts in the end.