So I was reading Hamlet Act 4 today and noticed something. The messenger brings letters, clearly stated one for the king and one for Gertrude. Claudius then reads about Hamlet's return, he discusses the plan with Laertes, and then Gertrude arrrives to tell of Ophelia's death.
Enter a Messenger
How now! what news?
Letters, my lord, from Hamlet:
This to your majesty; this to the queen.
From Hamlet! who brought them?
Sailors, my lord, they say; I saw them not:
They were given me by Claudio; he received them
Of him that brought them.
Laertes, you shall hear them. Leave us.
Does Gertrude ever get her letter? What's in it, do you think? Is any mention made of it again?