A/N: Inspiration is few and far between... But hey! Things are about to get interesting here! Hope you guys are ready! I see you predicting and thinking this will go one way. All I'll say it... Enjoy the ride.

As you deal the finishing blow, the beast lets out a mighty roar, falling into the canyon below. It slides along the sides of the cliff, grasping to climb back up, as it finally fades away.

You grin ear to ear, "Alright! Undyne! We did-!" You turn to face her to see her spear in your face, "Whoa whoa!" You hold your hands up and take a step back.

"Don't move!" Undyne commanded, her tone freezing you in place, "You've got guts, kid. I like that."

"Does... That mean you'll let me go?" You ask, almost hopeful.

"Hah! Nice try, loser!" She taunted, stepping closer, "King Asgore will be happy to take your soul!"

You blink, remembering, "The King? But that's where I was going."

Undyne blinked her eye at you, "Wait. Why? He's just going to take your soul from you."

You shrug, lowering your hands, "I came here to help this world, to help all of you!" You smiled, "If it means giving up my soul, then okay. Wouldn't be the first time." You just laugh, but Undyne is still a bit stunned. She shakes her head, but you continue, "But, I can't go yet. That shadow isn't alone here, I need to figure out who's making these heartless."

Undyne lowered her spear, "Heartless? So, you know who's killing monsters off?"

You shake your head, "Not exactly. But it's what I intend to find out. If you're willing to help, we can save everyone!"

She seemed to think it over for a minute, then raised her spear again, still skeptical, "And why should I trust you?" She asked, "How do I know it's not you creating these things?"

You raise your hands up again, taking a step back again, trying to think of a way out of this. Just then, your phone began to ring, breaking the tense silence between the two of you. You look to Undyne as if to ask permission to answer it. She sneered and just flicked her head to the side. With a slow and steady hand, you reach into your pocket and pull the phone out. The caller ID showed it was Sans calling. As you opened it, you pressed the speaker button and held the phone up between the two of you, "Hello?" You say loud enough for him to hear.

"Heya kid," Sans' voice comes through clearly, "You and Undyne getting along ok? She's got a pretty piercing personality, but once you get to know her, you can really see how sharp she can be."

"Ugh! Sans! Get to the point!" You smiled, hearing Papyrus in the background.

"Ok, ok, you there kid?"

You nod, looking at the phone, "Yeah, uh, what's up?" You look up at Undyne's annoyed face and just shrug. He spear was more pointed at the phone now.

"Can Undyne hear me?"

"Yeah."

"Cool. Here, Papyrus."

You hear the scratching on the receiver as the phone passes from Sans to Papyrus just before Papyrus clears his throat, "Human! Undyne! Fear not! I, the great Papyrus, will work out your differences!"

You bite your lip to keep from laughing out loud as you look at the phone. Undyne just rolls her eye, "Papyrus, what do you really want?" She asked him.

"Bring the human back here!" Papyrus said, "Sans seems to believe they can help us, and Alphys seems to trust him for some reason!"

You nod quickly, looking at Undyne. She meets your gaze for a second, then flicks back to the phone, "You're telling me to just blindly trust this human? Who could very well be destroying us behind our backs?"

"Trust me," Sans said, "They aren't this time."

This time? You remember that Sans can recall quite a few things from the past timelines, but, he'd never been skeptical of you before. Frisk had done some damage before, but, maybe since Frisk was with you, it gave him reason to worry. You glance beside you where Frisk was standing in your mind. They just frowned as they listened. To the other side, Roxas stood quiet, his arms crossed. It wasn't like him, but this wasn't the time to worry about it.

"Alright. Fine," Undyne finally agreed, letting her spear down completely, "Let me talk to Alphys."

The phone shuffled again as it was passed to Alphys, "U-Uh yes?"

Undyne sighed, as she relaxed a little, "Alphys, what the hell is really going on here?"

"Th-Those dark creatures are a-appearing everywhere!" She said, "I-I've never seen anything like it."

Undyne raises an eyebrow, "Everywhere?"

"C-Come back here, both of you. I-I'll show you."

"Alright, we'll be there soon."

As the phone clicked off, you closed it as put it back in your pocket, "See? I told you."

Undyne scoffed, "As if I'm going to trust you, kid," she stepped closer and scooped you up in one arm, carrying you, "Lucky for you, I trust Alphys." With a wide grin, she took off, running high speed back to, and through, Snowdin.

After a fairly quick and nauseating ride under Undyne's arm, she finally stops and let's you down. You quickly try to gather yourself, regaining your balance, and look around you. You stood back somewhere in Waterfall, there was no mistaking the dark cavern and the constant sounds of running water. In front of you both stood a little house shaped like a fish.

Undyne looked at you, "This is my house. I just need to change before we go back to the lab." She said as she led the way into the house. It was one room, a door at the opposite end. To the left you saw a grand piano, in fair condition, and a little kitchen to the right. As you stand beside the little table, Undyne points at the chair and glares at you, "Sit there and don't move." She commanded, walking to the back towards the door.

You wait a second before standing up again. The house was quiet, except for the sound of metal hitting the floor behind the door. Curious, you walk over to the piano and gently run your fingers across the keys. Undyne definitely didn't seem like the type to play something like the piano, but, maybe there was more to her than meets the eye.

"OI. WHAT PART OF DON'T MOVE DO YOU NOT UNDERSTAND?"

You jump, your fingers pressing down on the keys, and look up. Undyne was glaring at you from the doorway, now wearing just a tank top and jeans. Without so much covering her, you could see more of her scales, which glistened a bit in the light. Her hands, too, were webbed with red like her ponytail.

"U-Uh, sorry!" You quickly apologized.

Undyne sighed and walked past you to the door, "Let's just go already." You have to run to catch up to her as she closes the door sharply behind you.

Undyne walks across the cavern to the opening you came from. As she passes a training dummy off to the side, she gives a two finger salute. You tilt your head as you approach the dummy curiously. It didn't seem like much more than that.

Suddenly, it's eye shifts and it looks at you, "What? What?! WHAT?!" It exclaims, "It's a living!"

You blink, jumping back a little to catch back up with Undyne. She walked back through the main cavern, opting to take a path further down. As you follow her around a little pond in the center, you see the familiar sparkle of the save point. With a smile, you hurry over to it and hold your hand out, feeling the warmth surround you.

The sound of a distant waterfall fills you with determination, you hear Frisk whisper in your ear.

"Hey, hurry up, nerd!" Undyne called to you, "If you think I'm gonna leave you to get there on your own, you're dead wrong."

"I'm coming!" You hurry back and join her at her side, "So, why did you change exactly?"

Undyne rolled her eye and looked at you, "Duh, because we're going to the lab," she groaned at your still confused look, "Which is in Hotland? Which is incredibly dry and hot? And I'm a fish? Get the picture?"

You blink, realizing what she was saying, "Oh! Right!" You scratch your head, feeling a bit foolish for even asking, "Woops, sorry about that."

Undyne cracked a little smile and looked ahead of them, "Just don't let it happen again."

She stopped at the edge of the path and you saw what she had led you to. It was the River person. Undyne smiled and waved to them, "Hey, River Person."

River Person nods to you both, "Welcome, tra la la. Care for a ride?"

Undyne nods and climbs in, you following suit, "We're heading for Hotland."

"Very well. Off we go, tra la la!"

The boat zooms along the water, seeming to skip over the waves with ease. Undyne closed her eye, her arm draped over the side of the boat so her hand ran along the water. The high speed seemed like it would hurt her hand, but she seemed content. After a moment, she sighed and opened her eye again, meeting your gaze. Her lip curled back in a sneer at you.

"What, punk?"

You give a smile, not phased by her attitude, "Nothing. You just aren't quite like I imagined you would be?"

Undyne gave a hard laugh, "I suppose that's a good thing."

You shrug, "It's kind nice to know that you can be."

Undyne blinked and just looked away, "Whatever, punk."

You laugh as you sit back and watch the walls as they zoom past the boat. The darkness began to brighten up the closer you came to Hotland. You remembered the lava that moved slowly by at the bottom of the cavern. A part of you wondered how the monsters could survive in such bizarre environments. Another part of you wondered if this was really a volcano ready to blow.

"Here we are, tra la la," River Person announced as they stopped the boat at the shore, "Come again, is you require my services, tra la la."

Undyne took out a canteen she had brought with her and filled it with the water from the river. As she stood up again, she slapped the back of your head, "Come on, punk." She smiles as she walks ahead.

As you rub your head and follow close to her, you hear a strange, familiar, shuffle behind you. You quickly turn back, but see nothing there. Undyne notices your turn and stops, but says nothing. As you stare at the ground, you notice something. Your own shadow is beginning to move on its own. It reminds you of something you had been told long ago, something you hadn't thought of.

"The closer you get to the light," you say out loud, stepping back, "The greater your shadow becomes."

Undyne looks at you, confused, "What is that supposed to-"

You cut her off as you grab her arm and run ahead up the path. She's protesting the whole way, complaining how your hurting her by pulling her so close to the ground and how you have a strong grip for a kid, but you keep running. The shuffling behind you begins to get louder and louder. Pushing on harder, faster, you run.

You come to a four way fork in the road. You opt to run ahead, get up the stairs away from the shadow, but Undyne stops you dead in your tracks, pulling you back so you fall on your butt.

You look behind you, the shuffling sound stopping completely. With a sigh of relief, you let go of Undyne and look up at her. But she wasn't looking at you, and the horrified look on her face suggested much worse than a shadow stalking you.

She quickly ran off to the right down a different path. You begin to follow her until you see just what had spooked her. Ahead was the lab, a big, white, and unmistakable building.

But there was a hole where the door should be.

Flowey sulked by himself next to the pond in Waterfall. He huffed and puffed and mumbled to himself out of frustration.

"This isn't how the game is played," a cool voice said to him, making him turn around to see where it came from, "He's not playing by the rules, is he Flowey?"

Flowey scowled, "No! He took Frisk out of the game and now nothing is going right! This is NOT the game we we're supposed to play!"

"Perhaps you need to teach him a lesson."

"How can I do that?"

The figure stepped out from a shadow, heartless flanking it on either side, with one stuck close to it, "Let me help you. After all, it was our plan from the beginning... Wasn't it, Asriel?"

Flowey was stunned as he stared at the familiar face. It was one he had dreamed to see again, and yet, he could feel a tinge of fear building up inside him, "Chara? Is that really you?"

Chara smiled a wide, toothy grin, their eyes glowing even in the darkness, "You have more power than you know. More than those silly human hearts could give you. Let me show you."

Chara held their hand out to Flowey, the heartless around them following the order as they leaped at Flowey. His scream and cried pierced the silence of the caves for just a moment. Once the shadows disappeared, Flowey with them, it was quiet once more.

Chara laughed, then looked down at the one heartless at their side, "You'll see. This will be so much fun." They snapped their fingers and both disappeared in an instant.