I also found this in OOT of Goob Mudtoe. When your read the note it says "HELLO BOOG. COME VISIT YER BROTHERS ISLAND. ME CLOSE BY YOU. LONG LIVE MUDTOES. GOOB MUDTOE. I have no idea what it means but perhaps it may give someone an idea on what needs to be done with this.
Wilee Castusmaximas