This article is from the Final-Fantasy and other Square Soft Games FAQ, by firstname.lastname@example.org (Nick Zitzmann) with numerous contributions by others.
When you first meet her, she's not much use at all because she's blind.
But if you can make her see again, she can help you wake the sleeping
To make Matoya see again, you need to find the Crystal. The Crystal is
in the possession of Astos, the Dark Elf, and the only way to get it
from him is by giving him the Crown and then beating him in a battle.
The Crown is inside the Marsh Cave. You don't need anything special to
get it, except for a lot of Heal Potions, because it is a very difficult
item to salvage. Remember: Make sure your mages have either FIR2 or LIT2
- they'll need to save them for the Wizards that guard the crown. Good