**Chapter 1: The Fateful Voyage**

The sun was setting on the horizon as the ship carrying Queen Iduna of Arendelle, her husband King Agnarr, and their two daughters, Elsa and Anna, sailed through the choppy waters. Iduna stood at the bow, her brown hair blown back by the wind, her eyes fixed on the distant shores of Ahtohallan. The air was crisp and cold, filled with the salty scent of the sea. Agnarr, standing beside her, wrapped a reassuring arm around her shoulders. "We'll be there soon, my love," he said, his voice calm and soothing. "Ahtohallan's secrets await us." Elsa, 16, and Anna, 14, were excitedly chattering as they explored the ship. Elsa, with her icy powers still unpredictable, kept a wary eye on the waves, while Anna, ever the optimist, laughed and danced, her bright smile lighting up the faces of the sailors. The ship, sturdy and well-maintained, rode the waves with ease, but Iduna could sense the unease in the air. The sailors were skilled, but the storm brewing on the horizon was unlike any they had seen before. Dark clouds gathered, and the wind began to pick up, whipping the waves into a frenzy. "A storm is coming," one of the sailors shouted, his voice barely audible over the wind. Iduna's heart sank as the ship was tossed about like a toy. Agnarr quickly took charge, ordering the sailors to secure the ship and prepare for the worst. But it was too late. A massive wave crashed over the ship, sweeping Iduna off her feet. She felt herself tumbling through the air, her screams lost in the roar of the storm. The world around her was a blur of water and darkness. She landed with a thud on the sandy shore, her body battered and bruised. As she slowly sat up, she saw the ship, now a wreck, drifting away into the distance. Agnarr was nowhere to be seen. A scream built in her throat as she stumbled to her feet, scanning the horizon for any sign of her family. But they were gone, lost at sea. Iduna stumbled forward, her eyes fixed on the wreckage, her heart heavy with grief. She called out for Agnarr, for Elsa and Anna, but there was only silence. The storm had taken them from her, leaving her alone and adrift on a foreign shore. As she stumbled through the sand, she knew she had to keep moving. She had to find help, to find shelter. But for now, she just walked, her eyes fixed on the horizon, her heart shattered into a million pieces.