Disclaimer! This is an Undertale fanfiction... now I know I already finished an Undertale fanfic last month, but I thought of a new type of character to do, so here we go.
The main character in this fanfic is Crow Burr. It will be told mainly in his POV. If it switches to another POV, I'll let you guys know :)
If there are any OCs that I'll include in the story, when their names are first introduced, they will be in bold.
Anyways, let's start it off... again.

Chapter 1

It happened every single time. It happened with Shiva, it happened with Cinder, to Tex, Tootie, Andy, and now, just a week ago, to Bullet. All of them my siblings and all of them suddenly vanishing after each tried to save the others from Mount Ebott. The place where no one was allowed to go. I knew I had to do something, knowing that the place led to the Underground, where the monsters were sealed at numerous centuries ago. Why were they sealed? Because the humans were scared of them having magic. Stupid reason, huh?

I, however, wasn't going to stand idly by and let my siblings stay down there in torture. I knew they were softies, despite their different abilities such as Bullet's superb marksmanship and Andy's martial artistry. But they never reappeared, even after being gone for long enough to save the others. I knew I had to be the one to step in and save them, no matter who may stand in my way. So, I did the daring and grabbed a trumpet as my weapon. Excuse me, why a trumpet? Because I knew that a majority of the monsters in the Underground, at least from my studies, all had sensitive hearing. And I was a great trumpet player, one that could belt out very high notes into it for up to a half hour without getting tired.

I then made my way to the area known as Mount Ebott, finding an area that I knew would lead to the Underground, a cliff that had footprints on it formed from someone tripping and their feet skidding before they fell down there. Knowing Tex's clumsiness, I assumed it was him that did this. I then simply jumped down the cliff, keeping my body steady as I then activated a parachute at least fifty feet away from the ground. It was enough to slow my descent so I'd not feel any broken bones, but I still felt a bit of a shock to my joints when I landed on my feet. "Rgh... should've done it at a higher altitude," I groaned as I then looked to a nearby doorway. It was the gate to the Underground... and when I went through it, I gasped as I suddenly felt a wall of something surround me the moment I went through.

"What the... what was that?" I asked as I then tried to go backwards and soon found... I couldn't. For some inexplicable reason, I couldn't exit the barrier! "So... that's one of the reasons my siblings couldn't get out of here... this barrier affects humans too... dammit..." I groaned as I moved forward a bit and then I saw something... odd. It looked to be a strange flower, but it had a face and it was smiling when I approached it.

"Oh, howdy, bud!" the flower said, me frowning at him.

"Who said I was your friend, again?" I frowned at the creature, knowing he was a monster.

"I'm Flowey. Flowey the Flower! Honestly, I gotta say, I'm surprised you came in here so soon after the last human did," the flower creature said, me gasping at that and immediately getting hostile at the flower as I then held my trumpet in hand.

"You better tell me where ALL of my siblings are RIGHT NOW, before I blow your nonexistent ears out with my trumpet!" I exclaimed at him, the flower looking at me in confusion.

"Huh? You really think music can harm me? Don't make me laugh! Besides..." the flower said as its face then shifted... into a much more hideous form. One that looked pure evil. "You wouldn't last a minute against ME!" he exclaimed as I then felt something happen. I felt my heart pop out of my chest and it entered some kind of little screen and I found it got surrounded by white particles! I knew what this meant and I didn't like it. "Die!" the flower exclaimed, me smirking as he tried to send the circle of particles at me, but then I blasted a note on my trumpet. The highest note I could muster, it being E flat above high C. And when I did so, I managed to make the flower hold his petals to the sides of his head as he shrieked in agony and the petals turned to dust! "AARUUUGGH! MAKE IT STOP!" Flowey exclaimed in pain as something else happened. A fireball appeared out of nowhere and smacked Flowey right in the face, making him fly off into the distance to who-knows-where!

"My, what a terrible creature," said a female voice from nearby, me looking in the direction of the fireball and seeing... a large goat person wearing a thick robe with a strange symbol on it. "Trying to hurt someone just for sick joy," the goat person said, me looking at her in confusion.

"And who may you be? Do you know where my six siblings are?" I asked her, the goat female looking at me with a shocked gasp.

"Y-You mean... all those humans that have been coming through here... they were your siblings? Brothers and sisters of yours?" she asked in surprise.

"Yes. Now, do you know where they are? And answer me truthfully. I'd hate to blare this trumpet at someone who hasn't hurt me yet," I said, the goat person smiling and shaking her head at that.

"My name is Toriel, young one. The six humans that came before are currently at the capital in the Underground, guarded by our King Asgore," she said, me then asking another question.

"And how do I get to King Asgore? I need to save them before it's too late!" I said, Toriel sighing at me.

"That's exactly what they all said when I met them... every one of your siblings, minus the first who came here. It's hard to imagine that the most recent of them only got captured yesterday," Toriel said.

"Listen, I don't have any quarrel with you, but I need to save them. I don't want them to suffer down here alone," I said to Toriel, her frowning.

"I know, but there are some things you don't understand about this place, so I feel I should escort you to my house. There's a door in the basement that you can use to get closer to the capital. I'll explain on the way," Toriel said, me looking at her with a frown, but nodding all the same.

"So you know, if you happen to attack me, I will blast my trumpet," I said, Toriel smiling at me.

"Normally, I wouldn't mind that. But that high of a pitch you used to hurt that flower creature? Even my ears are ringing after that one, so I'll refrain from hurting you. Besides, I'd never want to hurt anyone," Toriel smiled as she held me by the hand gently and she guided me to the next room, her stepping on some stones so that a door would open. Most likely some security measures.

"So, question, Toriel. Did you happen to meet with my siblings after they fell down here?" I asked her, Toriel smiling at me.

"Well, I saw the first two, but as for the four others? I only heard of their capture from one of my friends. I believe the first one got captured because... I told her of an alternative way to get past the barrier. Because one human soul is unable to pass the barrier on their own, you'd also need the soul of a monster. But, from what I've seen, children like you and your siblings are very unwilling to kill people. Not even the first one, who stole a toy knife from me as her weapon, even hurt a single person. But King Asgore believes the best way to get us freed is to take 7 human souls from people that fall down here and use them to defeat the barrier," Toriel said, me gasping at that as we came to a room that had another puzzle, this one being filled with spikes. "Hold my hand and I'll lead us through," Toriel said as she led me through the trap.

"So... if they were to be used to destroy the barrier... would that mean that my siblings would die?" I asked.

"Well... it's very complicated to explain... see, there is a special type of power that is filled inside of a human soul. We monsters call it Determination. It's the main difference between humans and monsters. In order to supplement just a single human soul's Determination, it would require every single soul of every single monster in the entire Underground to do so. And if a human or monster completely runs out of Determination, like from destroying the barrier, then they lose the ability to gain access to it ever again. And as for your siblings... they'd be trapped down here in the Underground forever, as, if they would leave the Underground after the barrier is destroyed, they'd shrivel to dust... or at least, that's what the ancient legends say," Toriel said, me gasping at that.

"S-So... in a sense... even if I get to my siblings, we wouldn't be able to leave unless we happened to go on a killing spree and absorb a monster soul for each of us... and if we want to save all you monsters from being trapped down here for eternity, then us 7 humans would be the ones who would be unable to leave... either way, it's a positively terrible deal for me and my siblings," I sighed.

"I have no idea why King Asgore just doesn't decide to do the alternative method, absorb just one human soul, and then go to the surface and gather 6 human souls from already deceased humans. That would be the more peaceful option, after all," Toriel said, me frowning at that.

"But which soul could he possibly use that isn't mine or my siblings? Because, if that would happen, that means one of my family would be gone forever..." I sniffed in.

"Well... I know of one more soul... but she is very troubled... and I'm unsure if I could even retrieve it..." Toriel said, me looking at her in confusion at that. "But in order to get to it, I'll need to move on ahead. Before I go, here, take this cell phone," Toriel said as she gave me a flip phone.

"Um... I already have a cell phone, you know?" I asked her.

"Yes, while that may be true, it won't work Underground. We have our own special cell phones and Undernet service. But I refuse to leave these ruins, knowing that there could be more humans that could fall down that crack, so I apologize at it not having texting or anything other than calls... but it has my number in it, so I'll be able to contact you on your way through the Ruins. And be careful of the other monsters that reside here. Most of them are pushovers, but they have a tendency to pick fights with strangers," Toriel said.

"Why?" I asked.

"Why do they fight?... Honestly, it's because most monsters want to believe that anything that looks unlike what they're used to is a human. They really want to leave this place... it kinda gets claustrophobic down here in a place that has no sunlight," Toriel frowned.

"Okay... I see... I'll just try to befriend them instead. And if they don't accept friendship, well, they can just say hello to mister trumpet," I smiled.

"So long as you don't hurt them physically, that sounds like a very good way to get monsters away from you. All of us have very sensitive hearing, even magic rocks have sensitive hearing," Toriel smirked. "Well, I'm going on ahead. Be careful on your way through." And then, Toriel went on ahead and I looked around and saw that, when she left, a monster appeared out of nowhere that looked like a very tiny and scared fairy.

"Um... hello there..." I said to her, the little fairy looking at me with a sad face.

"I-I don't want to hurt you... but I need to... for Asgore..." the little fairy said as she forced my heart out of my body and tried to send white pellets at it... and whenever I thought of avoiding them by moving right, I found my soul did just that! It moved with my eyes and my thoughts. She then panted a bit after only three pellets and I looked at her with a frown.

"You look lonely. Would you rather be my friend instead of trying to hurt me?" I asked her, the fairy looking at me with a gasp and then crying as she flew to me and hugged me... which was kind of weird, as she was very tiny... like, the size of my hand.

"I'm sorry..." she sobbed to me.

"It's okay. What's your name?" I asked her.

"W-Whimsum... here..." she sniffed as she gave me 5 gold coins and I then put them in my pocket. "For good luck," she said as she then flew away afterwards, me looking forward and seeing that there was a frog monster ahead and a small jelly blob next to it. I decided to push on, knowing that I had to think of some kind of way to save everyone down here... and I had to wonder who that final soul could be that Toriel mentioned.