A king had a daughter named Anna for whom he cared more than anything on Earth. She fell in love with an ice harvester named Kristoff, but the king did not think Kristoff was good enough for his daughter. To keep them apart, he sent Anna to live with her aunt and uncle in Corona, past the other side of his kingdom.
Soon after she left, Kristoff got sick, and he wasted away and died. The trolls said he died of a frozen heart. The king felt so guilty about Kristoff's death, he could not tell his daughter what had happened. Anna continued to think about Kristoff and the life they might have had together.
One night many weeks later there was a knock on her uncle's door. When the girl answered it, Kristoff was standing there.
"Your father asked me to get you," he said. "I came on my best reindeer."
"Is there anything wrong?" she asked.
"Wait, what?" he said.
She packed a few things, and they left. She rode behind him, clinging to his waist. Soon he complained of a headache. "It burns something terrible," he told her.
She put her hand on his forehead. "Why, you are as warm as a fire crystal," she said. "I hope you are not ill," and she wrapped her mitten around his head.
They traveled so swiftly that in a few hours they reached the castle. Anna quickly dismounted and knocked on the gates. Her father was startled to see her.
"Didn't you send for me?" she asked.
"No, I didn't," he said.
She turned to Kristoff, but he was gone and so was the reindeer. They went to the stable to look for them. The reindeer was there. It was covered with snow and trembling with fear. But there was no sign of Kristoff.
Terrified, her father told her the truth about Kristoff's death. Then quickly he went to see Kristoff's troll family. They decided to open his grave. The corpse was in its coffin.
But around its head they found Anna's blue mitten.