A Tangled Knot [Quest]

Text of the Quest:

A stone being named Sumiril carries a book that contains a story about how he came to be. I should speak to Sumiril.

Sumiril: Do you know how to read?
Hero: Who are you? What are you talking about? Of course I can read.
Sumiril: I am called Sumiril. I am one of the "Hollow." We live to serve the Wilderking, who is our god, our creator. I ask you if you can read because I have this book, which is supposed to tell the true story of the Wilderking, and of my creation.
Hero: Why can't you read it yourself?
Sumiril: I can read it, but I am afraid to. I am not like the other Hollow. I can question my existence. I can believe or not believe. What if the book reveals something about the Hollow? Our purpose. I might crack and splinter from within.
Hero: I will read the book, and tell you if your fears are justified.
Sumiril: It must be done and I would be most grateful. You should know that who or whatever wrote this book bound it to the labyrinth. To traverse one, you need the other.
Hero: How so?
Sumiril: This book holds a single passage only. The words for the next passage will appear once you have opened the book. Follow them. They will transport you to a point deeper into the labyrinth, then settle on the page and create another passage.
Hero: Very well. I will read this book for you.

Sumiril: I have roamed this land since before many of these trees were seeds. In that time I have wanted to know how I came to be. Yet here you stand with the answer and I hestitate, uncertain.
Hero: Would you like me to tell you what I read?
Sumiril: I am unsure what I will regret more, knowing or never knowing the truth. Forgive my indecision. Please, continue.
Hero: The Wilderking was once a mortal, as were you. His name was Ostion.
Sumiril: Mortal... like you? What happened to me?
Hero: Ostion fought the Valenwood. You were among many who died.
Sumiril: Yet I live. Don't I?
Hero: Ostion and Valenwood remade you.
Sumiril: The past, present, and future are stark, stripped of illusion. And I am left with more questions. I will have to find a new way to exist, neither living nor dead, neither doubting nor believing.
Hero: Complete Quest.