It was a sunny day in Ponyville. All the ponies in town were doing their usual stuff: shopping, meeting each other, working, teaching, etc. All was good and all, but it wasn't for Trixie. She walked to Twilight's tree house in fear because of her recurring nightmares. "Twilight!" she called out. "Are you here?" A response came out, saying, "Come in, Trixie!" It was Twilight. Trixie rushed in very quickly to the purple pony. "It's those dreams again. The one about me and the Alicorn's Amulet. Though it's gone, I still have those terrible nightmares! I don't know what's going on!!!" Trixie started to cry a little bit, but Twilight cheered her up. "I think we should go see the doctor," she said. "There may be something wrong with your brain."
So they go to the doctor's office to see if it was an issue with Trixie's brain. "Somehow, ma'am, it looks like there's nothing wrong with your brain," the doctor said. "Then why do I keep having nightmares?!" Trixie shouted, ever more scared. This has really frightened her. "Hey, I'm no priest, but my guess is that something is giving you these recurring nightmares," he said. "I think you should go to a priest." Both unicorn ponies leave the office and head over to a chapel. There, they find a priest praying to the goddess. "Sir," Twilight called out. "I need your help. My friend has recurring nightmares, yet nothing wrong's with her brain." The priest keeps silent for a while. He then turns around, saying, "Incubus." Twilight didn't understand what he said, so she says, "Incubator?" "No, child, not incubator," the priest chuckled. "Incubus. It is a demon known to cause nightmares, sometimes recurring ones. Those dreams can go from bad to worse. These kinds of demons are also known to do it with the mares in town, but only at night when they are asleep."
Trixie was even more scared than she will ever be. The thought of being haunted by demons would scare even those who claim they can't be scared. "Sir," she began to speak. "Can you sense if I have any scent of that creature? I need to know if I am being haunted." He, accepting the offer, begins to close his eyes and hold his arms in the manner a Jedi would do when carrying objects with the Force. He then backs away, saying, "Ma'am, you are being haunted by an incubus. But not to worry. I believe it will keep coming for you, but since we are in a holy place, he'll keep out. Spend the night here." Trixie wasn't sure if that was the best idea, but she also knows the evil things are repelled by something that is good. She and Twilight decide to spend the night at the chapel.
Later that night, both unicorn ponies were fast asleep, snuggled close to each other. The priest, however, was going to stay awake. Why? He was going to kill the demon haunting Trixie. There was a sudden noise coming a short distance away. He decides to check it out, hoping it was only a mouse. But when he comes over to the location of the noise, he sees something bigger than a mouse. It was evil looking, all red with big, black wings and a black horn pair. It was the incubus! The priest knew that he was waiting for this moment, but the demon attacks first. He missed, setting the priest up for a swift counterattack. He hit the evil thing, making him fly towards the pair of sleeping ponies, accidentally waking them both up. As soon as Trixie saw the demon, she screamed and ran away in the greatest fear ever. "Not to worry, ma'am!" the priest says, having holy water in his hoof to completely weaken the demon. The water is then thrown. The incubus flies away from the holy liquid, but the water barely hits the monster, making it fall to the ground, weak. "Now, you evil creature," says the triumphant stallion. "Back to the depths of Hell from whence you came, never to come back on the ground ever again!!!" With that, a hole opened up, and it sucked the demon in. Then, it seals quickly, as if it were nothing wrong with the floor. Both unicorns were awed at the sight of that fight between holy and unholy. Like he said to Trixie, there was nothing to worry about.
The next night, Trixie went back to her home, ready to sleep. She then had a wonderful dream, but it's too long to type into this story. And later in the morning, she hurried to Twilight Sparkle and said, "IT WORKED! IT WORKED!!! I'M OKAY!!!" She was overcome with an abundance of joy. "I'm glad you're alright, Trixie. I'm glad you're alright." Twilight was especially pleased.