Two ice harvesters in Arendelle shared a cabin together. One slept at the back of the room, while the other slept near the door. After a while, the one who slept near the door began to feel very tired early in the day. His friend asked what was wrong.
"An awful thing happens every night," he said. "A love expert turns me into a reindeer and rides me all over the kingdom's countryside."
"I'll sleep in your bed tonight," his friend said. "We'll see what happens to me."
About midnight, an old troll woman came into the room. She mumbled some strange words over the ice harvester, and he found he couldn't move. Then she slipped a bridle on him, and he turned into a reindeer.
The next thing he knew, she was riding him across the fields at breakneck speed, beating him to make him go even faster. Soon they came to a large troll hut where a party was going on. There was a lot of poorly-written music and awkward dancing. They were having a fixing-upping time inside. She hitched him to a fence and went in.
While she was gone, the ice harvester rubbed against the fence until the bridle slipped off, and he turned back into a human.
Then he went into the house and found the troll woman. He spoke those strange words over her, and with the bridle he turned her into a reindeer. Then he rode her to the local blacksmith and had antlers fitted to her head. After that, he rode her out to the forest valley where she lived.
"I have a pretty good doe here," he told her husband, "but I need a stronger reindeer. Would you like to trade?"
The old troll looked her over, and agreed. So they picked out another reindeer, and the ice harvester rode away on it.
The troll husband led his new reindeer to the barn. He took off the bridle and went to hang it up. But when he came back the new reindeer was gone. Instead, there stood his love expert wife, antlers forcibly glued to her forehead.