A messenger arrives with a letter for Claudius from Hamlet saying that he’s coming back to Denmark, Claudius concerned with this, suggests that Laertes to have a duel with Hamlet but plan to cover the tip of Laertes sword with poison. This will cover it up as an accident and clear Claudius of any wrong doing and even if Hamlet is looking like he is winning the battle, that he’ll poison a goblet of wine to make sure. Gertrude then interrupts them and tells of news that Ophelia is dead by sitting on a branch which broke making her fall into the river and drown. It is not specified if this was suicide or poor luck.