Spike and Barley in Equestria

David Leatherhoff was getting bored. His pray, Spike and Barley, were nowhere to be found. At first, he assumed he finally killed them, but when he couldn't find their bodies, he knew they were still alive. Plus, he could still feel their presence, but not on this world. It was somewhere else, a place he couldn't reach. For the moment, anyway.

After an hour of fruitless searching, David Leatherhoff gave in, and returned to his home. He paced back and forth in his dining room, thinking of where they could be. 'Not in the forest, not in the parking structure, not in 'heaven'. Where could those two morons be?' He thought. He sat down, and concentrated on their presence.

For a split second, he knew where they were, but then it was gone. He tried again, this time it was longer, but he still couldn't reach them. After half an hour of concentrating, he finally found where they were.

"Huh, so that's where they decided to hide." He said in a demented voice.

Davids dark powers were strong, but even he wasn't sure he could travel to other worlds. It would be a tiring venture, he knew, which meant he would only have to bring himself. He also wasn't sure if his powers could work on beings that weren't human. But the world he found was pure, innocent, and too tempting to pass up. Besides, if worse came for worse, he could always go for more conventional ways of killing.

And with that, David gathered as much power as he could, and disappeared into thin air.

When he reappeared, David got on his hands and knees. He felt like hurling, he never had to travel that far. After a few moments, David got to his feet and took a look around. He noticed the sun setting in the distance and gave a crooked smile. His powers couldn't work in the daytime, but if he could gather enough power during the night, he could cast a dark dome, an illusion to make it seem like night all the time, around entire cities.

When the sun finally settled over the horizon, David could already feel his power returning. He wanted to get to work right away, but that would have to wait. He wasn't ready to cast his illusion. But he was ready to see if his zombie spell would work on these strange beings.

"Hi there!" A voice came from behind.

David turn to look, and found a peculiar sight. A gray pegasus, with bubbles on her flank, and yellow criss cross eyes was flying upside down.

"My name is Derpy." She turned upright. "Are you one of those 'hyoomans' that came from the forest earlier?"

David smiled. Spike and Barley are here. Which means he gets to not only corrupt this world, but get the satisfaction of torturing those two idiots for the rest of their life.

David knelt down towards the small pegasus. He put his hand on her face, and she instantly wanted to step back, yet she couldn't. He was as cold as death, yet his touch was searingly painful. Derpy felt the same sensation go throughout her body, into her brain, and finally it ended. Then she felt nothing, absolutely nothing.

David was happy, his powers work not just on humans, but anything that was intelligent enough to speak. He looked at the pegasus, her mane falling out of places, her eyes brown as the dirt she stood on, her head twitching in random directions, and her hooves turned into incredibly sharp claws.

He turned towards a mountain, a castle seemingly built into it, and the city it stood over. His powers had finally returned in full, and he casted the dark dome illusion over the city. Where there once was a city, now a pure black splotch stood.

David felt like he was going to have a good day.