I’ve gotten it dirty—ashes to ashes, and dust to dust.
What have you done with the corpse, my lord?
Act 4 Scene 3
I know an angel who can read your mind. But okay, off to England! Good-bye, dear mother.
I’m your father, Hamlet—your father who loves you.
Act 4 Scene 4
Sir, whose troops are these?
The king of Norway’s, sir.
Rosencrantz and Guildenstern go to Hamlet so they can retrieve Polonius' body and bring it to the chapel, but Hamlet refuses to tell them where it is.
Act 4 Scene 5
How can you tell the difference Between your true lover and some other? Your true one wears a pilgrim’s hat. And a pilgrim’s sandals and staff. (sings)
Hamlet is captured and brought to Claudius after killing and hiding Polonius' body. Claudius questions where he put Polonius' body. His final verdict is to send Hamlet to England, where he hopes he will die.
Act 4 Scene 6
Hamlet, Rosencrantz, and Guildenstern is on his way to the ship bound to England when they run into the Prince Fortinbras' Captain who is on his way to ask the king of Denmark to travel through their land. Hamlet asks questions about the conflict and the Captain tells him they're fighting over a small patch of land. Hamlet marvels that human beings are able to act so violently.
Act 4 Scene 7
When he dies, no one will be blamed, even his mother will call it an accident.
Ophelia enters the scene absolutely insane. While she's there she sings a song and speaks to both Claudius and Gertrude. Claudius and Gertrude discuss how long she has been acting like this. After Ophelia leaves with Horatio following her to keep an eye on her, Laertes enter seething with rage demanding to know where his father is. Ophelia enters and continues her song. Upon seeing her act like this, he's taken aback. Claudius leads him away to speak about who had killed Polonius.
Oh heavens, what does that song mean, my dear?
Horatio is given a letter from Hamlet who is staying in the countryside near the castle. Horatio bring the sailors that brought him the letter from Hamlet to the King. After that he goes to find Hamlet.
Claudius explains to Laertes that Hamlet was the one who killed Polonius and that he had no say in it. Together they create a plan to kill Hamlet during a duel. Gertrude interrupts their plotting to say that Ophelia had drowned. Laertes runs out in a rage and they follow after him to try and help.
My lord, I’ll let you make the decision. I only ask to be in on your plans, the agent of his death.