"Why do we need a trench anyway?" Asked Vesper. We were out in a field with the girls, preparing to watch a dragon migration. I'd just created a trench for us.

"So we don't get attacked," I replied.

"Who cares if we get attacked? We can take out any number of them!"

"Yeah, and destroy the ecosystem while we're at it."

"How did you two get so strong that you can just casually talk about fighting a horde of dragons?" Asked Watcher, who had just wandered over to us.

"Well," Vesper started, "Cloud and Sky are both mega powerful for reasons I can't say. Actually, I only know Sky's reasons, Cloud's is probably different. Anyway, mix the genes of two mega powerful Ponies and multiply it by them being so similar to each other, and you get the sexiest, most badass Pony to walk the multiverse."

"Even if Sky's past is different, you still probably shouldn't tell me about it," I stated. "Just to be safe."

"I know, that's why I..." Vesper trailed off and suddenly looked exhausted. "I... I don't feel so good..." She tried to take a step forward, only to stumble.

"What's wrong?" I asked.

"I... Don't know... I'm freaking out here, man..."

"What's happening to you?"

"I-I don't know!" Vesper collapsed. "Help... Dad..." Vesper fell unconscious. What the buck was that?! I need to get her to the hospital! I picked her up with telekinesis and teleported to the hospital to get her help.

Having to sit and do nothing in the waiting room for a few hours was pretty nerve wracking. What happened to her? It seemed like all of her energy suddenly vanished. But what caused it? Why did it happen? I have no idea...

"Mr. Calculation?" Asked a Doctor standing in front of me, breaking my concentration. Probably here to tell me about Vesper.

"Yes?" I replied.

"I'm afraid I have some bad news." Oh no... "The mare you brought in is rapidly dying from an unknown cause. I'm sorry, but there's nothing we can do." I felt numb. No... No! Celestia will know what to do!

"Where is she?"

"Sir, I'm afraid I cannot let you see her. Whatever is causing her to die may be contagious and- Woah!" I cut him off by leaping to my hooves and knocking him over. I sprinted down the hallway, knocking down anypony in my path, until I reached Vesper's room. They'd locked the door, so I blasted it off it's hinges with a magic bolt and rushed inside. Vesper was lying in a bed, still unconscious. She was hooked up to a cardiac monitor and had an IV connected to her left foreleg. I grabbed Vesper with telekinesis and teleported back outside. Let's hope I can do this again...

I summoned a Support Circle and flew to Canterlot.

Just like last time, Celestia had noticed me flying and opened the window for me. I landed in the middle of the room and laid Vesper down a nearby sofa before turning to Celestia.

"Hello again, Cloud," she greeted, "what seems to be the pr-"

"You've gotta help Vesper!" I exclaimed frantically, cutting her off. "She just suddenly collapsed, so I took her to a hospital but they said that there was nothing they could do and that she was dying and they didn't know why and-" Celestia cast a muting spell on me and stood up.

"When did this happen?"

"A couple of hours ago, she just-" I was muted again.

"We need to take her to Dr. Remover immediately. He ca-" I un-muted myself.

"I already tried a hospital and the doctors couldn't do anything!"

"Rib Remover is not any normal doctor. He is the greatest medical professional in Equestria, and maybe even the greatest to walk Magi. He has dealt with more problems than just illnesses and injuries. If anypony will know what's wrong, it's him."

"Fine! Just hurry!" Celestia grabbed Vesper with her magic and teleported all three of us into the Royal Hospital's break room. Rib Remover, who had been making a drink, turned to us unfazed. His eyes snapped to Vesper.

"Am I correct in thinking that this is the mare who originated from the future of an alternate but still somewhat parallel universe?" He asked at an impressive speed.

"You are correct," replied Celestia, laying Vesper down onto another nearby sofa. Rib quickly made his way over to her and cast some spells. Probably tests to see what's wrong. After about two minutes he stopped and took a step back, his face still expressionless.

"I know exactly what's wrong with her. Princess Celestia has already debriefed me on how to handle this condition in case this scenario ever played out." Celestia's eyes widened in shock.

"Wait, you don't mean...?"

"Sadly I do. It is fortunate that you have brought Mr. Calculation with you."

"What are you talking about?" I asked. Rib turned to me and stared me dead in the eyes.

"Your daughter is being erased from existence." There were a few seconds of silence.

"What?"

"Roughly three months ago, Ms. Overcast Vesper arrived in this universe twenty years earlier than she had intended to. She assumed that since she was not in her own universe, she would not be able to create any paradoxes and thereby destroy the conceivable universe. She was wrong. At some point, Ms. Overcast Vesper has stopped an event in which you traverse into her plane of existence and have intercourse with your female counterpart. Because of this, Ms. Overcast Vesper is running out of chances to be conceived. I would say that she has one week, at the most, before she is entirely erased from existence."

"Oh. Crap."

"And if Ms. Overcast Vesper is erased form existence, all of her feats will be undone. Discord will never have been defeated in the way that he was, the Cult of Disharmony will not have been disrupted and you would be much less informed on how the Arcane Circles work."

"But wait, if all of her feats are undone, won't that include making the paradox?"

"Yes. The time streams would become untangled." So everything will be oka- "However, in that instance, the paradox would be recreated and resolved infinitely within a single second, collapsing both universes." Nevermind then. "To resolve this matter, you must-"

"Yeah, yeah, I know; go and fuck myself before bad stuff happens. But how do I get to the other universe?" Rib paused for a moment before continuing.

"There are only four known entities that have traveled into alternate universes."

"Who?"

"Starswirl The Bearded," What didn't that guy do? "Ms. Overcast Vesper, you," This would be a great time to remember my past. "and Discord."

"Discord?"

"Yes. His chaotic powers are strong enough to temporarily break through into alternate universes."

"But how will I get him to help me?"

"Beat the shit out of him?" Suggested Celestia.

"Well, it's worked with every other problem I've encountered." I stretched out and summoned a Support Circle. "Okay. He's in the gardens, right?"

"Yes."

"Then I'll leave immediately. Thanks for the help, Doctor." Rib nodded. "It's time for me to get laid."

"Make me proud, Cloud. Go fuck yourself."

"I will, God-Horse, I will." I flew to the gardens to fight Discord.