When Timelines Collide

Explenations

(You don't have to watch the video above (the opening to Undertale) but I recommend to because it'll give you a guide to work with later on in this chapter)

I'm sorry for not updating recently, I've been really ill and feel bad for not updating, but I thought I needed to do some work on this book as I'm going away for a week in a few days (Yes, I am missing Halloween :()

@fredcameron6 Got the question right, the answer was Jason and it was probably one of the easiest questions I've ever asked. I'm trash at thinking up questions, or hard ones at least, so if you have any suggestions, message me privately (so people can't cheat)

Asriel's bedroom, soon after

Nobody's P.O.V

"So you want to know our story?" Frisk asked, as Asriel shut his bedroom door behind them.

"If that's okay with you, then yes." Percy said.

"Get comfortable, because it's a long one." Frisk replied, before sitting down on a chair by the wall. "Where to start?" Frisk asked, mostly to them self, "I suppose the beginning. Route one." 

"Before we start, I just need to mention that I'm not gonna go into too much detail, because there is a lot, and I need to remind you that, as of then, I had complete control over the Timeline, I could save and/or reset at any point." Frisk briefed the group, before starting the story.

"In short, Route one was my first ever time down here in the Underground." Frisk said. "The first run. The perfect run. On the first run I met a few people of interest who you should know. Everybody in this house, except Gaster, and Flowey. Flowey the Flower." Asriel shuddered at the name. "I went through the Underground, befriending everybody, and reaching the King's castle. But then I learned some horrible information. To cross the barrier, to get home, I had to kill Asgore, and take his Soul. In the end, when it came down to it, I couldn't bring myself to do it. We both decided to stop fighting, and just get along."

"But...?" Jason asked, "I detect a but, and I don't mean the kind you use to sit."

"After the fight ended, Flowey appeared. Because Asgore had been weakened by myself, Flowey killed the king and destroyed his Soul."

"Then how is Asgore in the room next door?" Percy asked.

"I'm getting to that." Frisk replied. "Flowey then took the six Human Souls-"

"Back up." Percy said, "When did you get those?"

"Oh yeah," Frisk said, smiling and barely suppressing a laugh, "Guessed I missed something out, huh. Basically, Humans trapped the Monsters underground, and the needed the power of Seven Human Souls to destroy the barrier. Asgore had collected six, and I was going to be the seventh."

"Why is it always seven?" Percy muttered to himself.

"Anyway, Flowey absorbed the Souls and transformed into a monstrous being with untold power. After we had clashed to-and-fro for ages, the Souls inside him started to struggle, and with their aid I defeated him." Frisk continued.  "Then, after beating Flowey I crossed the barrier. But I never made it out."

"What do you mean? You died?" Percy asked.

"If you died how are you here?" Jason enquired.

Frisk just chuckled at this. "I died hundreds of times down here, yet I feel more connected to the Monster world then I ever did to the surface." Upon seeing Percy, Jason and Hazel's shocked looks, Frisk elaborated.

"When I controlled the timeline, whenever I died it just reset to my last save. Think of it like a video game, when your player dies, they restart the level, good as new. When I died, the timeline jumped backwards to when I was alive."