Chapter one:

"Undyne! Undyne!"

Undyne turns as she is standing out front of her house about to train without her armour. She sees the two members of the royal guard racing towards her. "What's going on?" She questions the two.

"There was a strange creature spotted going deep in the hot lands!" One of the guards says as they stand in front of her.

"It's terrifying and it's not showing mercy! Some monsters ran from the hot lands reported it." The other adds.

"The hot lands?" Undyne asks for confirmation and the two nod. "Oh no this won't happen." She turns and dashes off towards the hot lands. "Please stay safe Alphys." She says under her breath as she hurried to find whoever is causing trouble. She reaches the hot lands and quickly begins looking around until she reaches the lab. She heads inside and looks around. "Alphys?" She questions looking for the other monster. "Hey where are you?"

"Undyne?" Alphys walks over to the other girl monster.

"Oh thank Asgore." Undyne dashes forward and hugs Alphys close to her.

"U-U-Undyne?" Alphys questions as she is hugged.

"I heard that something was causing trouble in the hot lands and I was worried that something happened to you." Undyne explains.

"Wait. M-Maybe my cameras caught something." Alphys says and Undyne puts her down only to follow her to the screen. She begins searching through her cameras and stops as something appears on it. "W-What was that?"

Then there's a sound in the lab causing Alphys to jump and Undyne to summon a spear ready to fight.

Undyne begins moving in the direction ready to strike. "Show yourself!" She demands when suddenly a dark mass rises to tower above them.

"U-Um Undyne?" Alphys says nervously from behind the taller monster but Undyne throws an arm out as if ready to use herself to protect Alphys.

"Stay behind me." Undyne orders and swings her spear with a battle cry as the mass dives right for them.

...

"Papyrus I don't like this." Flowey says as he rides practically on the skeletons shoulder but has a vine wrapped around Papyrus's torso to stay on the skeleton. "There was news of some monster causing trouble."

"Aw don't worry Flowey the great Papyrus will protect you." Papyrus says with confident. "Well finish this and report to Undyne."

Floweys eyes drop to half way a little annoyed. "Sure."

Papyrus pauses as he hears some kind of gurgling sound. "What's that?"

"It's our cue to get out of this area!" Flowey snaps.

"No! I as a future royal guardsman cannot ignore this!" Papyrus declares. "Nyeh he he he he he!"

"Come on!" Flowey jumps off of Papyrus and hurried away almost like a snake. He stops and glances back when he doesn't hear the other. "Papyrus?"

There Papyrus was facing this beast.

"Papyrus!" Flowey gasps watching from tje shadows.

"Come on. We can be friends. Are you new? I haven't seen you around before." Papyrus says obviously smiling.

The beast charges at Papyrus as Flowey watches in horror and Papyrus smiles more.

"You idiot." Flowey growls. "Now what do I do? What am I supposed to do." His head slumps as he finds himself a little lost. He then blinks getting an idea of what he needs to do. "Sans!" He slightly calls as he he turns hurrying away. "Gotta get Sans!"

The beast slightly watches Flowey head off. "5A-N5?" It gurgles to itself then seems to somewhat smile that turns into a slight smirk before melting and disappearing.

Sans is sleeping at his sentry station without a care in the world.

"Sans!"

"Huh?" Sans blinks awake sleepily and raises his head glancing around with half open eyes before spotting Flowey racing towards him. "Hey. How can I help you?" He greets as Flowey stops in front of his sentry station.

"Sans! It's Papyrus!" Flowey slightly pants.

This catches Sans attention and he seems fully awake now. "Papyrus? What happened?"

"Some weird liquid like monster took him! Just grabbed him as if to swallow him while!" Flowey explains. "It just appeared out of no where and Papyrus tried to make friends with it but it absorbed him or something instead."

Sans tenses at this and springs to his feet only to turn dashing off momentarily forgetting his teleport. He uses his teleport to teleport away.

Flowey lets out a breath wondering what will happen now.

Meanwhile...

Sans arrives in the waterfall area and begins looking around. "Come on. I know it's here." He says as he keeps looking. "Just show it to me!" He turns around and his eyes land on a dull plain door. "There." He rushes over grabbing the door opening it only to hurry into the darkness as the door shuts behind him. He finds himslef in a hallway after walking in darkness for a bit. "Okay. Lets navigate these sadly familiar halls that are like a maze. He's gottta be keeping Papyrus here." He starts walking knowing better than to teleport here if he wants to stay unnoticed long enough to find the others.

Undyne is cradling Alphys protectively when suddenly Papyrus falls down to right next to them, causing both to jump before relaxing.

"Papyrus!" Undyne says as Papyrus sits up as he landed on his back. "It got you too?"

"Yeah. It grabbed me before I could do anything." Papyrus confirms. "Wait! That monster got you two as well!" He says in realization.

"Yeah." Undyne confirms. "But we haven't seen it since we got here."

They turn as the mass of the monster rises.

"Spoke to soon Undyne." Papyrus says as they tense looking at this monster.

It starts to speak in some strange language so they can't understand save for Alphys.

Undyne summons her spear. "I will destroy you!" She throws the spear and it hits going through to be poking out of the other side.

The monster doesn't even flinch. It says something and pulls out the spear.

"What the." Undyne says in shock.

"Um it said that only a certain magic can hurt it. That yours is not that kind." Alphys translates.

The monster seems to tilt its head and it says something.

"Um y-yes I uh studied the language." Alphys admits.

The monster speaks again as it raises some tentacles that wave like waves.

"What!?" Alphys questions a little loudly in shock.

Suddenly the monster attacks Undyne who shields Alphys with her body.

She gains a few good wounds and she smiles at Alphys. "You okay?"

"It wants us to stop resisting." Alphys says. "I-it wants us to be g-good subjects..."

Undyne grip on Alphys tightens and she glares at the monster ready to defend Alphys who is most likely to die out of the three of them that are here if this monster attacks them again.