buttercups

Synthesis

Frisk

It had been about a week since Asriel broke the barrier. The night we left the underground was filled excitement and hope. Since then, Asgore has been negotiating with the humans, and they have agreed to build infrastructure to accommodate us. While that is sorted out, we were given equipment to set up camp a little ways away from the barrier's entrance.
We were all sitting around a bonfire, as we had been doing for the past couple days since we left the Underground.

All I could think about was the plan. I have it figured out, and tonight I'm going to propose this idea to Alphys.
I shuffle over to her, and ask if we can speak in private for a minute.

"Ok, so I've figured out a way to return the flower you resurrected with DETERMINATION." I ask
"The son of Asgore and Toriel, right? I've heard about the story" Alphys replies.
"I've figured out how to bring them back, but I need your help. Follow me."

As we walk back to the barrier, I explain my plan.
"So what I have planned, is to create another DETERMINATION soul, using one of the 6 souls as a vessel. I donate my soul's DETERMINATION, and then use it to resurrect the first fallen human. She is buried in the ruins, so it should be as easy as using the power of the new soul to resurrect her.

For Asriel, it's going to be a bit difficult, but I'm sure we can do it. We need a monster soul, although I'm not sure where we'd source one from."
"I-I have one or two monster souls that I injected with DETERMINATION, but only just enough that was needed to make it persist after death." Alphys chimes in.
"Ok, awesome. Next, we're going to use another human soul along with a monster soul, and I'll donate the remaining DETERMINATION from my soul to fill the vessel."
"Alright, let's take the human souls to the lab and we can begin."
We get to the lab, and begin discussing plans, since I'm going to have to be put under so the DT Extractor can function properly.
"For these soul vessels, what souls should we use? Keep in mind that the vessel's soul trait will be present afterwards." Alphys asks.
"I would think a kindness vessel for Chara. She hated humanity, and that's how she ended up in the Underground. A kindness vessel would most likely be able to suppress her hatred.
As for Asriel, I would think that a patience vessel would suit him the best. After all, wouldn't everyone be better off with a bit more patience and tolerance?"
"Alright, I will drain those human souls, and replace them with determination, while combining the extra monster soul for Asriel's new sou-" Alphys stops, and turns around to face me. "W-Wait, what about you Frisk? You said to drain half of your DETERMINATION for one soul and half for the other! You can't survive without any DETERMINATION in your soul!"
I pause for a moment. "I honestly wasnt planning on bringing them both back without sacrificing myself. I had decided in my mind that I would rather have Asgore and Toriel be able to see their real children again, instead of just me being left behind."
"

B-But you freed us by breaking the barri-" I cut Alphys off.
"No, I didn't free you guys, Asriel did. He took all the human souls, and all the souls of the monsters in the Underground, and used them to break the barrier." All I did was save him. And I want to save him for good this time, along with Chara. Their souls are connected as one after Asriel absorbed Chara's soul. They complete each other. I-I just want to see everyone happy again. I just want to restore the Dreemurrs to what they were before Chara died. At this point, I could care less about my own life."
Everything is silent. I honestly wasn't expecting that to come out.
Alphys then replies. "I know a way. Use the DT Extraction Machine to extract enough DETERMINATION to stabilize your soul. You don't have to go this way..."
"If you can figure out a way, go ahead. I just want them to be back."

- - -

Preparation continues, and the DT Extractor is fired up. This time, Alphys doesn't need the blueprints. Frisk is placed inside the machine, and the procedure begins. DETERMINATION is extracted from Frisk's soul, and infused into the empty Patience and Kindness vessels. The leftover Patience and Kindness is stored in specially made containers.
The Monster soul is then absorbed into the Patience-DETERMINATION soul, to create Asriel's new soul.
And with both the Patience-DETERMINATION soul and the Kindness-DETERMINATION soul complete, the DETERMINATION in the remaining souls is extracted, to then fill Frisk's soul to stabilize it.
Success. Frisk is now stable, and there are now 2 new souls. "This is really happening" Alphys thought. She looks over at the clock. The time is 2:47 AM, and she is dead tired after all that has occured.

(A/N. 2/6 parts so far have been published, with many more on the way. stay tuned!)