It was a normal boring day, many years had rolled by, and Caster sat in the middle of class bored out of their skull. Undyne was a lot of things, but she wasn't a good teacher. Not to mention Papyrus was annoyingly busy with the set up for the big announcement. As was Sans and Gaster, though they wouldn't tell them what was going on. As Undyne continued teaching the basics of shaping magic into weapons. A strange person walked into class, strange as in they looked human. But something about them felt off to Caster, the rest of the students backed away instantly. But not Caster, instead something was telling them they weren't human. Undyne instantly on edge went to attack the weird human, only to have Caster grab them and run off out of class before she could touch it. Instantly Undyne gave chase, Caster and the "human" ducking into the library to hide. Caster noticed the Human looked shocked, not at them helping the human. But at something else, before Caster could question Undyne found them and they started dragging the human around again. As they ran through a set of doors Caster trapped Undyne in by summoning blue bones.
Caster: "BLUE MEANS STOP!"
Undyne: "You tricky little brat, PAPYRUS GRAB EM!"
Papyrus looked over and noticed what was going on, going to grad them. He to was trapped by blue bones.
Caster: "Bl-blue means stop!"
Caster dragged the human outside to the outer walk way of the airship they were on, coming face to face with Sans. Turning to the weird human, Caster asked them some questions. Before asking them for the secret pass phrase.
Caster: "If you can tell me the secret phrase you're a human, if not I'm gonna blast you with a incalculable amounts of blasters."
Weird non-human: "You start with 23rd position and..."
Caster: "Twenty third what? Are you kidding me?!"
Caster instantly threw the parasite off of the air ship and, as they said before. Blasted them with so many blasters the explosion rocked the ship. Making nearly everyone fall over who wasn't sitting. The only issue was that they accidently turned on the broadcast, meaning everyone saw them destroy the parasite. A feat thought impossible, as Gaster came out to explain, Caster returned inside to get out of the wind.
Undyne: "That was freaking incredible! How'd you destroy a parasite! Hell how'd you even know it was one!?"
Caster: "I-I-I... I don't know..."
Papyrus: "Now Undyne don't crowd them, I'm sure Dad will explain. Come on Caster, we should listen to the broadcast as well."
As they listened to the broadcast, Gaster told them the story of the Sage, Caster's mother. And the origin of their magic, as well as why they can destroy the parasites. As he did so, the Air ship docked at Grand Hope, the monster capital, and birth place of Caster. As everyone got off Caster was in shock, they had just learned a great deal of things. None of which they knew how to process, they just turned 11 (in skeleton years) and now they had to save the world from the Crystal parasites? How was this fair, it wasn't fair, but Gaster thought if they could replicate the magical frequency that destroyed the parasites. Maybe he could make a turning device others could wear to attune there magic to it. Meaning others could help them fight, or fight instead of them until they were older.
In an instant, Caster had gone from child of the Royal Scientist to possible savior of the world. To say that they were nervous, was about as big of an understatement as one could make. They were already kind of famous cause of their dad. But now, famous didn't begin to cover it, everyone wanted to talk to them. They weren't the weird skeleton kid with eye scars anymore, but the savior of the world. This actually pissed them off, how dare they suck up to them now! They had no problem bullying them before, calling them names and pushing them around. One of the hybrid kids even pushed them off the air ship once midflight. Lucky they could teleport, cause they could have died. When Gaster found out that kid was severely punished, and expelled. But now they want him to forget all that and be "friends"? Maybe they shouldn't save the world, that would get back at those bullies.
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OverCrystal
FanfictionA very different kind of Undertale AU, one with a unique twist in the story.