**Chapter 1: The Fateful Voyage**
Part 1
The crashing waves and howling winds seemed to swallow the small ship whole, tossing it about like a fragile toy. Iduna, Queen of Arendelle, clung to the wooden railing, her knuckles white with fear, as she gazed out at the turbulent sea. Beside her, her husband, King Agnarr, stood tall, his eyes fixed on the horizon, his face set in determination. They had set sail for Ahtohallan, a mystical river said to hold the secrets of the past, and Iduna felt a sense of trepidation mixed with hope. As the storm intensified, the ship creaked and groaned, its wooden hull straining against the force of the waves. Iduna's stomach lurched as the vessel pitched and yawed, threatening to capsize at any moment. Agnarr's arm wrapped around her waist, pulling her close as he shouted orders to the sailors. But it was too late. A massive wave crashed over the bow, sweeping Iduna off her feet and sending her tumbling across the deck. She landed hard, her head spinning, and when she struggled to sit up, she saw that the ship was breaking apart, splintered wood and tangled ropes scattered everywhere. Agnarr was nowhere to be seen. Iduna stumbled to her feet, her heart racing, and staggered towards the spot where she had last seen her husband. The sea churned and foamed, and she spotted a dark shape bobbing in the water. With a cry of despair, she plunged into the waves, fighting against the currents to reach the figure. But it was too late. The shape slipped beneath the surface, and Iduna was left alone, clinging to a piece of wreckage as the storm raged on. When she finally emerged from the darkness, she found herself washed up on a sandy beach, the warm sun beating down on her face. She lay there, dazed and disoriented, as the waves lapped gently at the shore. As she slowly sat up, Iduna took stock of her surroundings. She was on a foreign shore, with no sign of Agnarr or the ship. A sense of dread crept over her, and she whispered her husband's name, but there was only silence. Tears pricked at the corners of her eyes as she realized that she had survived the shipwreck, but Agnarr had not. The thought was like a weight crushing her chest, and Iduna let out a sob, mourning the loss of her beloved husband. As she sat there, the sound of voices carried on the wind, and Iduna saw a group of people approaching her, their faces concerned and curious. She knew that she had to tell them who she was, but the words caught in her throat. For now, she could only sit there, surrounded by strangers, and weep for the husband she had lost.