Once through the door, he found himself inside the Throne Room. In the middle of the room by the throne itself, was another creature tending to some plants. The King had apparently heard his entry.
He turned around to face Frisk. "How can I…" The King cut himself short. "Oh." His eyes widened in shock at the sight of the human. Frisk met his eyes, though he couldn't have said it was without fear.
"…I so badly want to say 'would you like a cup of tea'…" The King chuckled, though Frisk could tell it was with a heavy heart.
"But…you know how it is." Asgore walked to one of the windows. "Nice day today, huh? Birds are singing, flowers are blooming…perfect weather for a game of catch." Frisk couldn't bare himself to say anything. There was something about the King's appearance that seemed eerily familiar.
"You know what we must do. When you are ready, come into the next room." Asgore departed through a back door. Frisk took the time to look around and spotted a second throne off to one side, covered in a white sheet. He went pale. He had only ever seen one other monster that looked so similar to Asgore. Was Toriel… "No. Don't think about it." Was Frisk's thought as he followed King Asgore. Soon, Frisk found himself and Asgore standing almost in front of the cave's exit. However, Frisk could easily see the barrier trapping the monsters underground.
"This is the barrier. This is what keeps us all trapped here. If…If by chance you have any unfinished business here…please…do what you must." Frisk slowly took out his knife. "No. I'm ready."
"…I see…Then this is it." The King turned around to face Frisk. "Human…it was nice to meet you. Goodbye." Suddenly, Asgore shoved his right arm out from beneath the robes to reveal hard armour beneath it, with a glowing red sword in his hand. Immediately the sword swung towards Frisk, who just barely thrust the knife up, managing to deflect it away. Immediately after this a fireball crashed into the ground, missing Frisk by mere inches. Frisk took this chance to dash towards Asgore. As Asgore swung his sword down, Frisk slid onto one knee, moving between Asgore's legs, managing to slash at his armour as he went. Frisk lept up and spun around to face his opponent. Asgore growled fiercly. Frisk could see that the slash had indeed damaged the armour. And if Asgore's protection could be damaged…he could be defeated. Frisk tried to think of something to say…anything that would stop the fight…but the look in Asgore's eyes spoke silently, that there would be no mercy.
With Asgore's next swing, Frisk managed to send his knife scoring down the king's arm and he saw fresh blood now on his blade. In a rage, Asgore lashed out, and the charge of fireballs was almost impossible to avoid. Eventually, one of the fireballs hit home, sending Frisk sprawling onto the ground. He could feel something burning inside him. A sense of…determination. He slowly stood up. The sword swung down again. Frisk raise the knife to block the blow. The momentum from the blow sent Frisk into a roll which he directed forward, once more cutting at the king's chestplates. The armour cracked slightly. Years of misuse and lack of maintenance meant that Asgore was more vulnerable than he realized. Frisk didn't see another attack coming from his other arm though, because a firey fist slammed into him. Frisk skidded across the room, laying still at one end.
Asgore walked over slowly, preparing to finish the job. Just before he could bring his sword down, Frisk tucked and rolled, jamming the knife deep into the crack. The King's eyes widened and he slowly went down to the floor. The sword clattered to the ground…then vanished. Frisk stood over the badly wounded king.
"Ah…so that is how it is…I remember…the day after my son died. The entire underground was devoid of hope. The future had once again been taken from us by the humans. In a fit of anger, I declared war. I said that I would destroy any human that came here. I would use their souls to become godlike…and free us from this terrible prison. I would destroy humanity, and let monsters rule the surface in peace…While the peoples hopes returned, my wife became disgusted with my actions. She left this place, and I haven't seen her since. Truthfully, I do not want power. Nor do I want to hurt anyway. I just wanted everyone to have hope."
"Asgore…" Frisk began, his hand, still clutching the knife, was shaking.
"But…I cannot take this any longer. I just want to see my wife. I just want to see my child. Please…young one…this war has gone on long enough. You have the power now. Take my soul, and leave this cursed place."
Frisk was about to refuse, and insist that he would help the king return. But then…the thoughts of Toriel came flooding back. The King had next to nothing anymore.
"Asgore…I…I'm…sorry…" Frisk, looking away, drove the knife deep into the king's heart. He could see the soul emenating in front of him as the king turned to dust. He threw the knife aside and nearly broke down sobbing as he grasped the soul in his hand.
"I…I hope you find your family…"
Looking back, Frisk once more looked at the exit of the throne room as he felt the power of Asgore's soul inside him. He then slowly stepped through the barrier…and onto the surface.
6 days later
Frisk lay awake on the top of a hill, staring up into the stars. It had been nearly a week since he had escaped the Underground, yet he just couldn't get the monsters off of his mind. Did they really desesrve to be stuck there? Asgore said himself that he never truly wanted to hurt anybody…and the war? It was pointless. It shouldn't have ever happened. Frisk sighed and closed his eyes, mumbling to himself. "I wish I could go back and…and free them all…"
AUTHORS NOTE
Yes I'm aware I'm not putting in the final fight with Flowey. I'm doing this for a reason. For one thing, my first reaction when seeing that was 'What kind of weed was TobyFox smoking when he made this?' I'm aware Flowey takes the souls, but due to the nature of the battle and what goes on in it, I feel like it would just be too complex to explain it on paper, as this is where we really see the whole 'save file' thing at use. Trust me, this WILL come up in the Pacifist and Genocide runs. IT WILL COME UP! I just left it out of this way to give it a softer ending. I hope you all can accept this.