In the town of Elfheim, you'll learn that the Elf Prince has been put into an eternal sleep by Astos, the Dark Elf. To awaken him, you need the Matoya's Crystal. First, you must obtain the Crown from the Marsh Cave. After getting the Crown, head to the Northwest Castle and defeat Astos to obtain the Crystal. Return to Elfheim and use Matoya's Crystal on the Elf Prince. As a reward, you will receive the Mystic Key, which opens many locked doors throughout the world, granting access to powerful equipment and hidden areas. This quest is essential for progression.
