The Descendent of the Author of the Book of Ancient

The Descendent of the Author of the Book of Ancient is a Elnath Mt. + Aquaroad quest started by Alcaster.

Objectives

Offer: Allow me to introduce myself. I'm Alcaster the Sorcerer, studying the intricate details of magic and wizardry for over 300 years here. Say, I haven't seen someone with a piercing, affirming look in the eyes like you have in a while. I feel safe asking someone like you for help. What do you think? I am sure you may be busy with your other endeavors, but can you make some time and listen to my story?
Recently I found something very interesting from an old book that I was looking at while studying forbidden magic. The book states that somewhere around Ossyria, an incredible book by the name of The Book of Ancient is hidden away. It was used ages ago at a war but its whereabouts have been questionable at best since. At least the very existence of the book is recorded for us to wonder...
I'd like to have that book with me and study it. I'm sure once it's discovered the book will be full of important, previously-unknown knowledge on spells. Too bad I'm very old and in need of more research here so I won't be able to find it myself. I'm sorry, but can you find The Book of Ancient for me? I know it won't be easy, but I can at least help you out a little bit.
In progress: You haven't found The Book of Ancient yet. Please head over to Orbis where a descendant of the author of The Book of Ancient lives. That person may know the whereabouts of the book. I'm counting on you.
Completion: Alcaster said you know might be able to lead me to The Book of Ancient?