Over a period of several months and years, both before and after Princess Luna's return, a series of seemingly random events occurred: odd flashes of lights accompanied with loud sounds of explosions but nothing visibly damaged; numerous sightings of strange happenings; individuals just appearing from nowhere who were suffering from strange ailments--or who had even stranger ideas.... But were these events truly random? And were they truly unconnected?

"Wh-where did she go?" Tom Mane exclaimed, looking around.
"Everypony stay where you are!" one of two city guards shouted as they came out of the alley and skidded to a halt before the scene.
"What happened here!?" the guard demanded.
"That unicorn was trying to rob us!" Tom Mane told him, pointing at the comatose figure laying among the disrupted garbage bins. "He had just shot at my wife when some bipedal creature just suddenly teleported in and grabbed the bolt out of the air and kept it from hitting her. Then the creature knocked him out and teleported away. But I've never seen a teleport like that before."
"What sort of creature was it?" the lead guard asked, taking out a notepad and pencil to take their statement.
"Well, it was bipedal, as I mentioned before," he explained. "Looked to be a blend of Diamond Dog and some sort of feline. Female, I think, there wasn't much time to see it—uh—her? Tall, perhaps as tall as Celestia, but very thin, although she had quite a large barrel of a chest. Thin waist, long thin, but well-defined muscular limbs, and a long tail. She was furred, tawny with small black spots, but with a white throat, belly, and inner thighs. She did have distinctive teardrop black markings from the inside corners of her eyes down around her muzzle…."
—from a report of the first known sighting, dated 997AB Day 257.

Only, that incident wasn't the first—nor was it the last….

[Chapters with explicit sex scenes will be marked with 交尾]