**Chapter 1: The Fateful Journey**

The sun was setting on the horizon as Iduna, queen of Arendelle, stood at the helm of her ship, gazing out at the endless expanse of water. Her trusted advisor, Grand Pabbie, stood beside her, his wise eyes fixed on the sea ahead. Iduna's brown hair was done up in a low braided bun, and a determined look was etched on her face. She was on a mission to uncover the truth about her daughter Elsa's powers, and nothing was going to stop her. As she sailed, Iduna's thoughts turned to her family back in Arendelle. Her husband, Agnarr, was king, and their two daughters, Elsa and Anna, were the lights of their lives. Elsa, 16, was struggling with her powers, and Iduna was determined to find a way to help her. Anna, 14, was a bright and cheerful young girl who adored her sister and was desperate to help her. Iduna wondered how they were faring without her, and whether Elsa's powers were still growing stronger. Meanwhile, back in Arendelle, Elsa was indeed struggling with her powers. She had accidentally plunged the kingdom into eternal winter, and Anna was trying to help her sister, but Elsa's powers were growing stronger by the day. Anna tried to reach out to Elsa, but her sister had become increasingly withdrawn and isolated. As Iduna's ship approached the treacherous waters of Ahtohallan, the wind began to pick up, and the waves grew choppy. Grand Pabbie's eyes narrowed, and he raised his staff, as if sensing the danger that lay ahead. "Queen Iduna, we must be cautious," he warned. "The spirits of the sea are restless, and the waters are treacherous." But Iduna was resolute. She had come too far to turn back now. She grasped the helm tightly, her knuckles white with tension, as the ship rode the waves. The storm intensified, and the ship was tossed about like a toy. Iduna was thrown to the deck, and she clung to the wooden planks as the waves crashed over her. She was vaguely aware of Grand Pabbie's voice, shouting above the din of the storm, but she couldn't make out his words. And then, everything went black. When Iduna came to, she was lying on a sandy beach, her head throbbing with pain. She sat up, groggily, and looked around. The ship was nowhere to be seen, and she was alone. She stumbled to her feet, and looked out at the sea. The storm had passed, but her ship was gone, wrecked on the rocks. Iduna stumbled along the beach, calling out for Grand Pabbie, but there was no answer. She was alone, and she had no idea where she was. As she walked, she saw a group of people approaching her. They were dressed in the clothing of the southern isles, and they looked at her with a mixture of curiosity and suspicion. "Who are you?" one of them asked, a burly man with a thick beard. Iduna stood tall, despite her shaken state. "I am Iduna, queen of Arendelle," she said, her voice firm. The man's eyes widened in surprise, and he nodded to one of his companions. "Take her to the king," he said. "He will know what to do with her." Iduna was led away, her mind reeling with questions. Where was she? What had happened to her ship? And what would become of her now? As she was taken away, she couldn't help but think of her family back in Arendelle, and wonder what the future held for her and her daughters, Elsa and Anna.