Aftertale
Chapter 3: Training Days

Disclaimer: I do not own Undertale or any of the characters involved except Arin

Asgore doused the flame in his hand and Arin seemed a little disturbed.

"You have to fight me?" He asked

"Well, not so much fight you as train you," Asgore clarified.

"What does that mean?"

"If you're gonna learn magic kid, you need to see how it's done so you can figure it out for yourself. Everyone does it differently," The shorter skeleton brother chimed in.

"I'm sorry, we didn't get to meet, who are you?"

"Sans, Sans the skeleton, I'm Papyrus' older brother," Sans nodded towards Papyrus whose ever-present smile widened.

Arin nodded then turned back to Asgore, "So I just need to see how you guys all perform magic? That sounds easy enough,"

Asogre opened his mouth to say something, but then a thought crossed his mind, "I think it would be easier if we just showed you," he said after a moment of contemplative silence. "Why don't you head down to the backyard, we'll be there in a few minutes, we're just finishing up in here,"

Arin nodded and turned in the doorframe, heading down the stairs and out into the backyard. Frisk wasn't anywhere to be seen, he assumed she had slipped into her room while he was talking with Asgore. Once he was outside Arin went to the middle of the yard and cupped his hands under his heart again, his silver colored soul emerged once more.

"I wonder if the colors have anything to do with it, I noticed Asogre's was gray," He thought to himself.

He put his soul back inside his body and after a few minutes of waiting, which Arin passed by doing some stretches and short jogs, Asgore stepped out into the yard with Undyne and the Skeleton brothers.

"Are you ready Arin?" Asgore asked him.

"As I'll ever be,"

Asgore nodded and held out his hand, summoning the red flame again. He threw it into the air, and suddenly it exploded into a series of circling fireballs that rained down in the yard. Arin felt his soul exit his body. He looked up and saw that as the fireballs got closer to the ground the gaps between them widened, with a simple step to his right he stood between where two fireballs touched the grass a few yards on either side of him.

"That was an example of Red Magic, which we Dreemurs use," Asgore explained.

"Are the colors important?" Arin asked.

"You bet they are kid," Undyne stepped forward and with a gleam from her eye a pair of spears appeared point-first in the ground, "Pick it up,"

Arin nodded and drew one of the spears out, Undyne lifted her hand and with another gleam a dozen spears appeared in the air surrounding Arin.

"This is Green Magic!" Undyne shouted as she swiped her hand and the spears flew toward Arin. He lifted his spear and blocked the first one of the flying weapons, turning on the spot he blocked another, and another. Once all the spears were blocked the one he was holding disappeared.

Then he felt something weird happen to his soul, it felt… heavier. Suddenly Arin dropped prone, looking at Papyrus who was smiling as always holding his hand out.

"This is Blue Magic, there are two forms to it. I can make things heavier,"

Then Arin was suddenly lurched into the air a few feet off the ground.

"I can make things lighter and move them around," Sans stated.

Arin then slowly drifted to the ground and the feeling in his soul disappeared. An idea was forming in his head and he looked to Asgore.

"I noticed that my soul was similar in color to yours, does that mean anything?"

Asgore thought about it for a moment, "I suppose, if what research we had done on Human Souls discovered anything, it tells what your most dominant trait is,"

"Alright, what's Silver mean?"

"I don't know. We only had eight Human Souls and of them we only know the meanings of seven, and we have a guess at the eighth: Patience, Bravery, Integrity, Perseverance, Kindness, and Justice are the ones that are known, the eighth one we assume is Determination,"

"So you don't have any idea what my color means?"

"There are so many emotions and attributes Arin, it's hard to say which one yours represents the most,"

Arin nodded, a little crestfallen at the news.

"Well kid, the fastest way to finding out what your soul can do is to try," Sans told him.

"Practice does indeed make perfect," Papyrus added.

Arin nodded and clenched his fist. Holding it out in front of him toward Undyne he began to think of spears summoning like she had.

"What are you doing kid?" Undyne asked.

"Concen-trating," Arin gasped out.

"On what?"

"Summoning… spears,"

Undyne grinned before she couldn't hold back laughing which broke Arin's concentration.

"Spears are from Green Magic, you need to figure out what kind of magic you can use first," She continued to laugh.

Arin slumped to the ground, not knowing what to do next. "Is there anywhere we can go that might tell us something?"

Asgore started to shake his head when a thought crossed his mind. "Actually, there might be one place," He said.

Arin looked up excitedly, "Where?"

A few minutes later, Arin regretted asking that question. The group had traveled the few blocks into the city that led to the library. They were all currently sifting through history books looking through the era of the Human-Monster war.

"All I can find are reports of Humans using Red, Green, or Blue magic. Rarely there's a mention of another color but those seemed pretty unique," Asgore announced in a whisper to the others.

"I found something here about how Humans don't get magic like monsters do, it has to be taught to them and they can only learn Red, Green, or Blue," Sans added.

"That can't be right, I found a book here that says Humans get their own color of magic, it's just that Red, Blue and Green were the most common at the time,"

Arin was mindlessly flipping through pages when something caught his eye. Fanning through he found an image of a tall, broad-shouldered man with a white soul that seemed to reflect the lights above, the caption underneath read:

The Silver-Souled human, leader of the Human Defense Force. Not much is known about Humans with Silver Souls as only one has been found in all recorded history, and his name was lost in the burning of the records during the war.

"Guys, I found something," Arin said pointing at the caption. The others crowded around him and read through it for themselves.

"Defense force?" Undyne asked, "Like a Royal Guard?"

"Similar, yes," Asgore answered, "I wonder if his soul magic had anything to do with that,"

Arin went to say something when one of the librarians came over to their table and told the group they were closing for the evening.

"It is getting fairly late, why don't we head home and get some rest, we can continue this search tomorrow," Asgore said.

The group nodded and left the library, heading back to the Dreemur household Undyne, Papyrus, and Sans all piled into Undyne's car before saying good night to Asgore and Arin. Once they were gone the pair entered the house and each went their separate ways to bed. Arin entered his new room and collapsed onto the bed looking up at the ceiling.

"Man, this has been one crazy day," After he kicked off his shoes he leaned over and hit the light switch bathing his room in total darkness, shortly after, he was asleep. While he dreamed Arin saw visions of a battle field that was lit ablaze, legions of spears were being made out of thin air and launched into the horizon, one such volley came up from the horizon toward him, but in a second a hand appeared in front of him, his hand, and a large, silver-domed shield appeared and blocked the spears.