Princess Zelda
Do not be alarmed, you can trust this boy.
This was the best means I had for contacting you at present until I can arrange for us to speak in person. I met him traveling through Faron and he seems to be on the same side.
Oddly enough he was on his way to Eldin to rescue two individuals under imprisonment by Ganondorf. Unfortunately for him he had no identification of any kind and so cannot pass through Hyrule city without being picked up by the inquisition.
As our objectives seemed similar enough so I had him bring this letter to you in exchange for his forged identification. If you are reading this he has followed my instructions on how to infiltrate the castle through the kitchens and find you. As eager as I am to speak in person I cannot meet with you when the inquisition is watching my every movement. This is why I recommend we use this young lad as our means of conversing for now.
His name is Link and I have told him almost everything you have told me. He is most eager to help and he will follow your orders until I can arrange for your escape. Until then try to be patient.
Sincerely Agahnim