Grendel the Really Old and His Recovery

Grendel the Really Old and His Recovery is a Elnath Mt. + Aquaroad quest started by Grendel the Really Old.

Requirements

Offer: I heard about you through Dances with Balrog from Perion. We don't need to necessarily talk to each other to communicate; we communicate through our minds. You've worked hard to get here. But hey, you're looking for The Book of Ancient? Of course I also happen to have the piece of the map that shows the book's whereabouts. I've forgotten about it for a while...
But I can't just give you that. I also have been giving away a little bit of my power to all the magician-hopefuls for hundreds of years, but there have been a sudden rush of people wanting to be Magicians, I've used up most of my power as a result. Get me 2 Wisdom Crystals and I'll help you find The Book of Ancient. What do you think? Do you want to do it?
In progress: You didn't collect 2 Wisdom Crystalf yet? You'll be able to find it from the monsters on land from time to time. It won't be an easy task, but I think you are more than capable of getting them. I'll be waiting for you here. Good luck!
Completion: Ahh, back so soon? Let me see them... yes... Wisdom Crystals. Magnificent.
Mmm. The mana returns to me like a tide. It has been decades since my mind felt this clear. You have my gratitude, young one — and as promised, my help. Now then...