Outside the Main Hall you encounter Sir Luketzar, the Baron of Lucidia, who tells you that a band of thieves broke into his castle last night. Though the guards captured or killed nearly all the culprits, the leader, Karal, escaped with four of the baron's precious family treasures: the Golden Cup of Negavia; a painting of one of the baron's ancestors; the sword Fireking; and the magical crystal known as Krystar. He tells you that he will pay you well to recover the treasures, and that you can keep Fireking if the other pieces are safely returned.
The baron says that Karal is believed to be hiding in the ancient ruins of a school known as Tech High, located in another plane of existence; he'll send Sir Orabon to accompany you on the mission. The baron's wizard Zorphurck magically teleports you to the entrance of the school where the adventure begins.
Source: Eamon Wiki.