It was getting cold, and the air around the cave had a mist in it. It was thus a perfect night for testing a machine that, with any luck, would help the two brothers conquer Equestria.
Summit Creek pulled out a stone tablet with an array of holes drilled through it and placed it on a pedestal. He then began arranging various crystals in the holes.
"What should we look for first?"
Sierra Springs thought a moment. "Let's find a world where Nightmare Moon defeated the princesses." He grinned at the thought. "Yes, let's recruit the true Queen of the Night."
Summit Creek arranged the remaining crystals on the tablet and slid it into place. "It's ready."
The blue glow from the ring grew in brightness, and an undulating sphere appeared above the ring. The air grew cold as a strange wind from nowhere howled through the tunnel. The pulsating increased, and the air was soon charged with an electric crackle. With a hiss, the void between worlds was ripped open, and a dark figure appeared before them.
A dark... filly... appeared.
The two brothers stared in disbelief at the tiny cat-eyed creature before them. She stared back for a moment, then quickly turned around and ran back through the still-open portal.
"MOMMMMMMMMM..."
The brothers continued to stare until the portal collapsed.
"Well," Summit Creek finally said, "that was unexpected."