The Diary of Randas is a book by Randas that can only be read during the Underground Pass quest by talking to Koftik at the bridge at the beginning of the Underground Pass. It does not exist as an item in-game.
It began as a whisper in my ears. Dismissing the sounds as the whistling of the wind I steeled myself against these forces, and continued on my way.
But the whispers became moans...
At once fearsome and enticing like the call of some beautiful siren.
Our greatness lies within you, but only Zamorak can unlock your potential...