With the island is now being ravaged by earthquakes, entire population decide to evacuate the island and escape to the continent of Parmecia, to rebuild their kingdom and hopefully, one day take the Granseal Island back and rescue the Princess. In the ensuing battle, Bowie wrests the Jewel of Darkness from him, but he is unable to rescue Elis, and the ground around the Ancient Tower collapses. They find the possessed King Galam inside the Ancient Tower, who has taken Princess Elis as a hostage. When the party breaks out, Slade helps Bowie retrieve the Jewel of Light and accompanies his party back to Granseal, which has been invaded by Galam forces. Bowie and his friends are captured by the Galam military: while in their dungeon, they meet the thief, Slade. The Gizmo subsequently possesses the king of the neighboring kingdom of Galam. The Minister, in place of King Granseal who is looking over a fainted Astral, then orders the slaying of the Gizmo by a platoon of Granseal's soldiers. Sir Astral exorcises the demon, which promptly flees. Sir Astral and the nascent Shining Force visit the king, finding him possessed. It is discovered thereafter to have possessed King Granseal. Upon their defeat, the Gizmo that appears to be the leader flees. Greeting their arrival in the tower are devils named "Gizmos" springing forth to attack, though their ultimate intentions are unknown. They find that the door to the Tower of Ancients has been unlocked and stands open. Sir Astral, the court's adviser, along with his apprentices, Bowie the squire, Sarah the healer and Chester the knight, investigate these events at the castle. The following day, King Granseal falls sick when he is attacked by an unknown creature. In a shrine south of Granseal Castle, a thief named Slade unwittingly breaks the power of a magic seal by stealing the jewels of Light and Darkness this unseals the demon king Zeon trapped therein.