I've been losing my drive for this fandom for a while and when I got scooped back into my old harry potter roots I kinda lost all my inspiration.
I just really don't think I'm going to be able to finish this story, at least not properly but leaving it without closure is also really shitty.
I hate getting into a fic and the author never finishes it.
So I'm gonna meet in the middle a little and give you an outline of what was going to happen.
I am sorry.
Thanks to those of you who stuck with me as long as you have.
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Sleep deprivation continued to weigh in on Gaster as he worked to create the Excisor. He would send his days working on the plans and collecting scrap to create it and at night he would make the machine.
By the third or forth day he begins to see things that aren't there, specifically, he sees what looks like a monster kid in grey but they always disappear when he tries to get a close look at them or speak with them. This is his living nightmare and perhaps not a complete hallucination.
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Whenever Gaster is out of his office to work on his machine, Frisk sneaks inside and reads his secret files. They're obsessed with finding out what he's hiding. The files they read and a few key conversations with Sans leads Frisk to find out about the D.T. experiments.
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As soon as the first soul fell, Gaster began experimenting on it. By the time the third fell, he had created a machine capable of removing the most potent force within the human soul, Determination. He had made a great many theoretical papers on the substance and believed that it might be the key to freedom for monsters.
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That was also the time he became enamored with the idea of children and being a father. Unfortunately, as much as he liked children, he had never bonded closely enough with another monster to be able to make a child, like not even close. Gaster does the math and thinks it might be possible to create a child alone and since the math works out, he gives it a shot.
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The first three attempts fail, the proto-soul shatters very early on. Gaster reworks his numbers and thinks more magic and more matter will stabilize the infant soul. He creates the first Excisor, removing the matter from his left palm and using it to create an infant soul, what would be Sans.
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Monster souls grow next to the parent soul, usually receiving additional magic from the other parent to aid growth and then once growth is complete they emerge and the baby's body forms. When Sans emerges his soul is underdeveloped and he falls down almost immediately upon his body forming. In a panic, Gaster risks everything to give Sans an infusion of D.T. the little skeleton receives minute traces of the soul extract until his soul and body stabilizes. Sans has the least amount of D.T. ever administered in the trials. His magic is strong because of the Determination, especially if he's feeling determined himself, but his body is very frail.
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In contrast, when Gaster make Papyrus years later, he forces Papyrus' soul to stay inside him longer than the infant soul wants to. This results in Papyrus having a strong, normal soul, although Gaster was bedridden for nearly six months to achieve it.
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Back to the D.T. trials. With the Sans survival, Gaster convinces the king that other monsters might be saved. A few fallen monsters are brought in, twelve in all over the course of a couple years, thirteen with Sans. Older monsters don't react well to the Determination and their souls would shatter with the infusion of the D.T. Younger monsters though, had about a 50/50 shot at surviving and waking to live normal lives after the procedure. Four young monsters were brought in, two lived, two died. One of the two that lived was Undyne, who lost her eye and almost died while training with her mother, the captain of the guard. Of the two that died, one was just too weak but the other, Goner, was a different story altogether.
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Goner, the Monster Kid, was the thirteenth patient brought in. They had fallen from a high walkway and no matter how much they were healed they wouldn't wake up. They reached well to the Determination infusions but Gaster was ready to take the tests farther. He didn't want to just revive fallen monster children, he wanted to make them stronger, better. He pushed more and more Determination into Goner until their body suddenly began to melt. Gaster and Koshka only knew one way to remove Determination, so they moved Goner to the D.T. extractor. The machine ripped Goner apart. Nothing was left afterwards.
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As Frisk is learning all of this. Gaster finishes his machine and late one night he coaches Frisk on how to use it. In that empty lonely lab the machine cuts through Gaster's stomach and kills him. Frisk has to watch him turn to dust, his soul shattering before their eyes. This is the last straw for them. They can no longer allow themselves to have any emotional connection with Gaster.
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They reload their save in his office and tell him the machine didn't work and he died. Gaster desperately tries to find an alternative. The last of sleep is pushing him into madness, he seems to see Goner everywhere and then begins to hear them saying cryptic things that circle endlessly in Gaster's mind.
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Gaster is sitting at his desk, head in his hands, trying to ignore the whispers and accidentally falls asleep. He begins to lose his shape to melt into his desk. Frisk happens upon him and goes to shake him awake and discovers something, very, very interesting. When they touch him, their Determination, resonates with his and his body stabilizes. He can sleep so long as Frisk is touching him.
This changes everything.
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Now Frisk has all the power in their relationship and no reason not to take advantage of it. At first they simply have Gaster teach them everything he knows, especially about magic. Then they get an idea. What if humans could be infused with magic the way Monsters can be infused with Determination? They plant the idea in Gaster's head and the idea fascinates Gaster as much as it does Frisk. He throws himself into the project without much thought into why Frisk would want to be infused with magic.
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Gaster eventually manages to create something like the D.T. extractor, based on older plans for a weapon that condensed a Monsters magic into a beam of pure destructive energy. He had shelved that project a long time ago because no monster would ever have enough magic to be capable of using the blasters. (save Sans)
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The first magic infusion is extremely painful and Frisk is sick for days afterwards with a fever but once they get better they find they can create basic magic attacks. They play with Papyrus, making attacks and play fighting but it isn't enough. Soon Frisk is pushing Gaster to give them another infusion and then another and another.
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Sans finds out whats happening and he thinks Gaster is manipulating Frisk into the experiments. On a day Gaster is taking Papyrus to school, Sans convinces Frisk to run away from the lab. They save first and then go, mostly out of curiosity. Sans takes them through Waterfall and Snowdin and all the way to a large stone door. There Sans thinks all hope it lost when they hear a gentle voice on the other side and after a tentative conversation, Toriel opens the door and brings them inside.
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Toriel gives them pie and lets them sleep in her house, quite happy to adopt the both of them and keep them safe from Gaster. Frisk is happy to stay their a while, the Ruins are beautiful and Toriel is kind. She shows Frisk her fire magic and Sans show them more of his gravity magic. Frisk is careful to never reveal the extent of their own magic while there.
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One night, Frisk reveals their own past. They were the child of two scientists that worked for a secretive r&d company deep in the mountains. The company's lab was in the foothills of Mt. Ebbott and all employees had homes provided for them in the surrounding woods. They were all beautiful modern houses but far enough apart that they were isolated from one another. Frisk's parents were cool and occasionally affectionate with them but even from a young age they had the feeling that they hadn't planned to have a child or wanted one much even now.
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Frisk managed to hack into the files on their parents computer while at work and discovered that Frisk was one of many children that were part of an experiment. Married employees were compensated for having one of the specially created and chosen embryos that eventually resulted in these children. The company was researching ancient texts and hoped to recreate humans capable of the magic spoken of in old stories. The children in the experiment were all ones with exceptionally strong souls.
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The children, Frisk included, grew up alone, with only their parents, tutors and the scientists for company. They never even glimpsed the other children that were part of the experiment. They were told when they went to the lab that it was for check up and school testing. The tests grew more and more intense as Frisk got older. Eventually they ended when nothing came of all the experiments and Frisk's parents promised that Frisk would never have to go back. They lied.
After Frisk found out their parents were gong to take them back to the lab for yet another round of testing, they ran away. This is how they came to fall into Mt. Ebbott.
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They feel relieved to finally have told someone their past but at the end of the day, they re-load their save and when Sans comes to convince them to run away, they stay.
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Frisk keeps pushing Gaster to give them more and more magic. Somewhat haunted by the memories of seeing Goner while sleep deprived Gaster becomes more and more reluctant. This is when Gaster realizes his mistake, realizes that he's not the one with power in their relationship. Not only can Frisk deprive him of sleep whenever they want, they can reload their save over and over and over again, until they convince him of the layered loading make both him and Sans so ill they collapse.
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Gaster gives in and gives Frisk the magic they ask for until Frisk hits their own threshold, where there is too much magic in their body and not enough matter and like Gaster and Goner they begin to melt and destabilize. They are able to load their save just in time but the memory of what happened haunts them. Even without more magic, Frisk can now materialize a weapon out of magic just like Asgore's. Theirs is a large spear, brilliant red in color. They can also manifest attacks, they use bone attacks just like the Font family and can use both blue and orange attacks.
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Frisk seems less and less like a child. They play with their magic in a way that speaks of obsession and they are constantly studying Gaster's papers to try and do more, be more. Sans can no longer be their friend and starts to see that Gaster was never the manipulator in the the relationship. He begins to fear for his brother and father.
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Things are growing more and more tense when Frisk asks Gaster to rebuild the time-machine. Sans begs Gaster not to. He sends Papyrus to their family home in Snowdin where it's safer. He tries to convince Gaster to come with him. He even tries to fight Frisk but he can't even begin to fight someone who can never die. He runs, determined to protect his brother at all costs.
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Gaster sees the machine as the only way out. He knows now, the machine can only go backwards in the Determination's own timeline. He rebuilds the machine and with all the assistants help, Gob, especially, he programs the time machine to go back beyond the explosion, to take Frisk away from their time.
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And Frisk uses the machine and finds themselves on a mountainside, the machine in wreckage behind them.
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Gaster now understands better the kind of damage his carelessness can cause. He eventually succumbs to the D.T. and melts. He can only touch his sons briefly. His mind deteriorates much slower, like dementia. He has a few years with his children and to train Alphys to be the next Head Scientist after him. Eventually his mind is left in a childlike state. Papyrus ends up being his main caretaker and loves and cares for his father unconditionally. It is not the life Gaster ever pictured for himself but he is happy.
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The finals scene you see is a young Frisk running through the forest, wearing the same clothes they fell in. They pause for a moment, glancing back through the trees, certain they saw something... that almost looked like them. They continue on, running up the mountain, tears streaking down their cheeks.
Once out of sight, Frisk, out Frisk, older in torn and stained clothing from the machine exploding, steps out onto the trail. The stretch their hand out and a blood red spear appears in it. Then they head down the trail, the opposite way their younger self went, towards the Lab that made them.
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