Upside-down

So the adventure begins. Frisk up next saw a lot of interesting things. She messed around with Sans as the two taught her about flower bridges. Special crystal like seeds grew into blooming lilypads. At one point Papyrus got stuck with the seeds so Sans took her away and showed her an echo-flower. It was so cool! It repeated everything you said. The message it had now was one Sans left after making a quiche. Frisk was enjoying her time with the two human brothers. She even showed them how she fights. The next important place they visited were a set of caverns with signs on the wall. Papyrus offered himself to read the plates for her. They were talking about the power of souls and the war. She touched a few flowers and learned that monsters would whisper their whishes to echo-flowers. Sans chuckled as he saw her listening to peoples wishes instead of Papyrus. 

"wanna make a wish, pidge?" Frisk's eyes lit up and she nodded franatically. He snickered as he pulled her to a smaller echo-flower. It was freshly bloomed. She let herself go into her normal form and got really close to the flower whispering to it. Sans waited for her and his smile grew when he saw her go back to her small size. 

"what was your wish..?" Frisk smiled. He chuckled. 

"gotcha. no telling." She pulled him by his well...actually...his pants. And the two walked towards the still reading Papyrus. But they quickly came to a halt as they saw Papyrus looking at a wall. 

"NYEH?? HOW ARE WE SUPPOSED TO CROSS??" Frisk looks behind her and sees a telescope. It must have been a puzzle. She ran backwards and Sans looked at her confused. Papyrus was stomping his foot and fumming over the wall. Frisk used her tail to get up and looked through the telescope. As she looked around she noticed something written on the lense. That was it! She ran between Sans legs sliding as he looked at her unimpressed by the stunt he pulled. He started walking again, groaning at all the 'effort' he was doing as Frisk put a tiny paw on the wall. It immediately collapsed in front of them. Papyrus started laughing and leading the way again. Sans chuckled and gave her a pet on the head. 

"nice job, kid." Papyrus however stoppsed again. 

"LET'S...SKIP THESE WRITINGS!!" He said as he was walking. Frisk started reading them on her own. They were...about human and monster souls...now that the monsters had these souls that persisted after death, humans could absord them for power. Frisk frowned. It wasn't something she didn't know yet it still set wrong with her. Sans looked at the signs as well and winced internally. 

"err..let's go kiddo.." He ushured her. They all swam...well..Only Frisk swam, the two brothers were fine with the water coming to their knees...anyways! They all crossed to the other side of a large water, on a bridge. It was darker than usual. They moved quitely as the atmoshphere grew unsettling. On their left was a chunk of land with giant stone pillars. You could bearly see behind them and the shadows were thick even on the bridges. They were all walking slower now, alert if anything would happen. She could hear a soft noise, like the fourth number of footsteps then the energy crackling. She didn't think twice as she changed to her bigger form and pushed Sans out of the way of a giant blue energy spear. The person guilty for this immediately appeared from the shadows in their giant armor. It shined in the small light from the echo flowers and stones from the ceiling. 

"uhh...run..?" Frisk asked confused as the three looked at each-other. 

"book it.." Sans said in response.

"RUN INDEED LITTLE MONSTER..." Papyrus agreed. The three started running as the Head of the Royal Guard was chasing after them and firing energy spears. She came to a lot of close calls which kind of made her anxious but she didn't dare look back. They ran until the chunk of land ended and the bridge got slimmer. They found more tall grass. Frisk changed to her small size and she, alongside her two human companions hid in the grass being as silent as possible. She could hear the footsteps, the metal clackling on the wood as it squeacked unde the woman's weight. Undyne was right there, stepping in the grass. She could see her metal boots coming to a stop inches away from her. The metal hand reached into the grass and she shut her eyes tight thinking she would grab her...but the grab and lift never came as she looked up to see..Mk...smiling at his hero. She held her breath as the human with red hair put the kid down. After the armored giant couldn't be seen anymore all three of them let out a relieved sigh. Another close call...and saved again by the little blonde kid with a striped shirt and buck teeth in the front. He had freckles and green eyes. He was so cute. 

"DUDE!! YO!! DID YOU SEE THAT?! UNDYNE JUST...TOUCHED MEEEE!!" He said all excited as he jumped up and down. Frisk giggled. 

"I AM NEVER WASHING MY FACE AGAIN!!" That earned a whole laugh from her. She laughed so hard she accidenlt changed in her bigger form. Sans looked at her and snorted. She was such a dork yet he sometimes couldn't look away. He blushed. 

"AW MAN!! Aren't you unlucky? If you were only a fewwww inchesss to the left!" Mk said as he gestured to his left. Frisk waved him off. 

"Don't worry, MK! I will get to see her again!" Mk's eyes sparkled. This must have been the first time she talked to him and laughed properly in front of him. 

"WOAH!! Did you know you have a pretty voice?!" Frisk looked at the kid in surprise as she even opened her squinted eyes. Her iris got smaller as her eyes widened and she blushed. Sans frowned. The hell? She was much older than the kid!!

"YEAH!! And you have pretty eyes too!!" Papyrus 'Nyehd' in confusion as Sans grew more upset. 

"WOAH!! YOU EVEN GOT CURV--" Frisk covered her chest in disbelief as the older human pretended to cough. 

"yo kid. don't you want to get ahead and catch undyne or something??" He asked as his smile twitched a bit in annoyance. Who the hell thought that kid this type of stuff?!

"RIGHT!! As much as i want to stay looking at her" The kid said looking her up and down. Frisk backed away, a bit scared by the kid's approach. Sans scrunched his nose up as his eye twicthed. This kid was disgusting. 

..I NEED TO CATCH HER UP AHEAD!!" Mk said as he started running. He tripped and fell face first. All three winced at that until he got up and screamed 'I'M OK' while he was still running. Frisk sighed in relief. Sans looked at Frisk and accidently spurted. 

"huh, the kid was right...you do really have cur--OWWW!" Sans said as Papyrus hit him in the head. 

"DO NOT MIND MY BROTHER, FRISK! YOU ARE BEAUTIFUL INSIDE OUT!!" Frisk smiled as she turned back to her small size and the three started walking again. Up ahead Frisk found another shinning star. It twinkled. She learned about the resets and save points...so she touched it. Sans eyed her suspiciously before he teleported away. Frisk looked confused. Papyrus seemed to understand that. 

"HE HAS A SMALL STAND UP AHEAD!! DO NOT WORRY!! HE WILL JOIN US SHORTLY!!" And Papyrus was right, after a bit of walking they found Sans standing next to a telescope. Frisk jumped up in excitement. She ran to him and squeaked at him...since she couldn't really talk in that form. His smile turned a bit more genuine as he chuckled at her. Papyrus however seemed annoyed and was gesturing for him to get on with it. Why was he so mad about a telescope..?

"heya kid. sorry i left ya...i got into the telescope business a while back. it's normally 500000G to use the premium telescope.." Frisk spurted. HOW MUCH DID HE JUST SAY?!

"but...since i know you, you can use it for free." He said with a wink. 

"howzaboutit?" Frisk gasped excitedly as she got closer to the telescope. This form won't do...she wanted to enjoy it fully! She turned back to her bigger form. She was surprised how it didn't take as much energy as on the surface..but since she was Underground surrounded by magic, she assumed it was normal. She bent down to look in the telescope. It actually showed the crystals on the ceiling. They were alligned just like the starts in real life. She could see the big dipper, the gemeny...the snake..and so much more. She smiled at the constellations.

"They're so pretty! They're glimmering with different colors too!! I love this view!" And she was right! Each sparkly rock on the ceiling was shining a different color. 

"love mine as well.." Sans said looking at her..Well he didn't get a good view as Papyrus smacked him again. Frisk shot up like struck by lightning and pulled her sweater down better. Papyrus frowned as his brother rubbed the spot where he got hit.  

"BROTHER!! THAT IS SUCH AN INNAPROPRIATE THING TO SAY!!" Suddenly the older human looked at her and he started laughing. 

"uhh..you'll wanna wipe that." Frisk looked confused as she wiped her eye and noticed her fur was tainted. This was a trick telescope!! Damn it! She wiped off everything. They walked again and met with an interesting guy..the Nice Cream man!! She met Nick back in the Snowdin forest. Frisk's mouth wattered. Sans looked at her and raise a brow. 

"want some nice cream, bucko?" Frisk jumped up and down in excitement as she got her frozen treat. The compliment on the wrapper was so sweet. It said she was lovely. Sans said he should stop being lazy. It was totally pointed at him. Papyrus nice cream said he will have a lot of friends. The next place they visited was an interesting fluorescent field. Frisk stopped to take in the sight. Tiny mushrooms were glowing as small twinkling and chimming noises could be heard. The fluorescent water around lit up the place nicely and she's never seen anything like it before. It was..beautiful. She wished her brother could see this...She smiled softly as the younger and taller human called her name. She turned around and came to his side. He seemed to be leading them somewhere that even the human didn't know where. Frisk saw a lot of the mushrooms..maybe...She decided to put her paws on a big one. Suddenly a path of smaller mushrooms lit up in front of them. Her eyes widened at the sight.

What Frisk found interesting is that even with the brothers protection, humans still seemed to approach her. A few stood out. First was a really buff guy with a pony-tail and sun-glasses who seemed to be trying to get laid with her. Sans stepped in. Frisk laughed at him for that. He left his number which Sans was more than happy to throw in the water nearby. She laughed at that too. Papyrus didn't understand what was wrong. Frisk didn't wish to let him know so she said it was just 'Sans acting silly'. The older brother seemed to back it up. So they both wanted to protect the innocent Papyrus...

"WELL TINY MONSTER..I DO BELIEVE WE ARE COMING CLOSE TO ONIONSAN'S ROOM." Frisk stopped for a second at the name. Oh..my...god....They stepped inside a giant roome where this really long human was scubadiving. Frisk thought it was so cool...until they tried to pull her in and Sans grabbed her by her waist so she wouldn't fall. The man apologized. Papyrus made sure she was ok and even offered to dry her clothes. She told him it's fine. They also met this really nice but shy singer. Frisk and her sang together. Sans and Papyrus wanted to attack her too but Frisk stopped them just in time. That's when the waterfalls started getting worse. They arrived to a room with a piano. Frisk jumped on the piano and brushed the keys with her little tail. Sans and Papyrus were watching the walls and inscriptions on them. 

"what does it mean, bro?"

"I AM AS CONFOUNDED AS YOU, BROTHER. IT SEEMS THEY ARE REFERRING TO SOME SORT OF 'TUNE' YET..THESE...'HALLS' ARE SILENT!!" Frisk raised one ear. The younger brother was right. Only the sound of water could be heard...also..the sound of..water hitting rock. But not like the one she heard before. This sounded different. She got down from the piano and started walking forward down. Her small feet made splashing sounds which echoed in the caverns. That's when she hit the source of the sound. A sad lonely statue being hit by the water dripping down. She looked around and saw a small umbrella holder. She beamed as she made her way to it and managed to tippy-toe to get one. She brought it back and put it on the statue. Sans looked at her dumbfound as he teleported behind her and she was fixing the position of the umbrella. Suddenly, to their surprises, a music box started playing. Frisk smiled as she rushed back to the room with a piano. Sans teleported again. 

"TINY MONSTER?? WHAT DID YOU FIND??" Frisk got up on the piano again and tried to remember the notes. Uhh..was that a do too..? Hmm..She started pushing the keysdown slowly..then she pushed them faster and finally she got the little song from the music box right. In front of them a wall crumbled, letting a door-way lead them into a small room. Inside the room a big red ord was sitting on a pedestal. As the three sat awe-struck at it's beauty a small dog came and..ate...it..Frisk blinked a few times in confusion. Papyrus started screaming and Sans was snickering and laughing. The three needed to keep going. So they did. Both Sans and Papyrus got umbrellas and Frisk climbed into Sans hood to shelter herself. He didn't really mind since she was really light. They however came across MK. Sans groaned as he saw him. Papyrus stepped on his foot to make him shut up. MK saw Frisk in his hood and beamed. 

"Yo! You got an umbrella?? Awesome!!" He came closer to Sans. He scrunched his nose up and looked at her. 

"do i have to..?" Frisk smacked him with her tail and frowned. He sighed. 

"ok ok ok..got it..sheesh, no need to be so rude.." The three started walking, with Frisk in Sans hood as MK was talking A LOT about Undyne. Frisk pretended to snore which got a light chuckle from Sans. 

"i know the feeling kiddo.." He said. 

"AND MAYBE SHE CAN BEAT UP THE TEACHERS!!" Was all the two heard as they stopped and looked at the kid, Papyrus still strolling. 

"what..?" Mk asked confused. 

"beat up the teachers..?" Sans asked confused and concerned. Mk seemed to think about it. 

"Maybe not..She's too cool to beat up the teachers!!" Sans scoffed. 

"but not cool enough to not hurt frisk.." She gave him a light pat on the cheek. He smiled at her, raising a brow. 

"what? you going soft there miss.monster?" She giggled. They kept walking in comftarble silence as MK kept talking and Papyrus was humming in response. Their footsteps could be heard through the caves as well as the twinkle and chimes of the flowers and waters left behind. Soon enough they got out of the raining caverns only to be on an edge. An edge with a clear showing of the castle. Frisk's eyes opened and widened as she saw how beautiful it looked. The sparkling precious stones and the castle in the distance made her realize something..she's been reading all these plates about the humans and the monsters that fell before her...and all of them died so these humans could break free...which meant...she was the last soul they needed to open the barrier. Maybe...she could help them..? Yet, it pained her to think about her journey through the Underground was almost over and she had to choose... Mk started walking faster and they got to a pretty high ledge. Frisk took both of the bothers umbrellas and put them in the holder. Mk frowned at the ledge in front of them. 

"Yo. This ledge is way too steep...Jump on my shoulders!! Or let me help you up." He started coming closer to Frisk and she immediately yelped and changed into her bigger form. 

"No thank you!! I can get up myself!!" She rushed past the kid as Sans frowned at him and the two exchanged glances. Frisk looked at the edge. She jumped up and grabbed onto the ledge. She used her arms to pull herself up and she got onto the ledge like a real acrobath. Mk was looking at her with sparkling eyes. 

"WOAH!! SHE'S SO COOL!!" Sans looked at the kid again. 

"back off, bucko. she's too old for ya." And he teleported away. Papyrus seemed confused. 

"TINY MONSTER!! HOW DO I APPROACH SUCH SITUATION!!" Frisk frowned and jumped off. She put her hand and gestured for the younger brother to get on. She couldn't possibly-- yet she did. She pushed the taller brother up and then she jumped again. She looked down at Mk.

"Do you need help as well?" She asked kindly. Mk stared at her for a few seconds before he realized she was talking to him. 

"OH!! Nah, don't worry about me! I always find a way to get through!" Sans mumbled 'thank god.' Frisk hit him with her elbow. He grunted. The kid started running the direction they came from and fell face first again. He got up and yelled 'I'M OK!!'. They all laughed at that and carried on. That's when they entered a really dark room. 

"HUH..INTERESTING!"

"care to 'shine a light' on us as well, paps?"

"BROTHER!! DO NOT START WITH YOUR STUPID JOKES!! SUCH TASTELESS COMEDY SHALL NOT RUIN OUR ADVENTURE!!"

"well i thought it did a good job at lighting up the mood!" Said Frisk smugly as she passed both the brothers. Sans was left speechless and Papyrus groaned. 

"NOT YOU TOO TINY MONSTER FRISK!! NYEHHHHH!!" She laughed as she changed back into her smaller form. So much changes..he kinda wish she could stay in her bigger form. But he got the point..she wanted to look harmless so no one would judge her as some 'awful scary monster' and she was right to think that. If Sans wouldn't have met her in her smaller form, when she stepped in between his brother and Undyne he would have freaked the fuck out! She was however beautiful in some way. Just something not only about her personality but the way she looked as well was...different...Huh..He never thought he would feel like this...weird. It wasn't hate. As they were walking in the caverns Frisk found another star. She touched it quickly before walking to catch up to Papyrus who only did one step when she did 3 or 4. On the walls were hanged more signs and acient writings about the war and difference between monster and human souls. The caverns ended into a huge room with bridges. Frisk scrunched up her nose at the sight of this suspended labyrinth. They all started walking when suddenly Frisk stopped. It's bearly been 5 minutes since she chaged her form but she did it again as she pulled both brothers by their shirts back, out of the way of a set of crackling spears. Undyne was behind them. They all scattered between the bridges...however the amount of spears Undyne could sustain at the same time was bigger than they expected. They ran around aimlessly. Sans and Papyrus would from time to time use bones to stop their spears. Frisk would leap around and roll like she's never done. 

The three ended up on three different bridges all extending from one on which now stood Undyne. She started walking towards Papyrus bridge. Frisk and Sans eyes widened as Papyrus was cornered. 

"Traitor.." The armored human said as she raised her spear. 

"NO!!" Frisk opened her eyes which started changing colors. One was purple and the other blue, then sky blue and red then yellow and orange and they kept changing until they sat on orange and her wings started forming. Frisk pushed Papyrus out of the way on another bridge as Undyne brought the spear down and the boards started cracking. Frisk was flying in front of Undyne and the bearly holding bridge. The human with red hair snarled at her. She looked at the two brothers who now were on the same bridge. Sans eyes widened as he yelled. 

"FRISK!! WATCH OUT!" But it was too late as the Head of the Royal Guard threw it's spear into her wing and she fell onto the crumbling birdge. It cracked one more time before it gave away and both the monster and the wood of the bridge went thumbling down into the darkness. Papyrus and Sans both rushed to the edge of the bridge looking down. 

"FRISK!!" They both yelled but it was too late as the darkness already swollowed her whole. Undyne looked down as well and dismissed her other spear. She started leaving. 

"YOU CAN'T JUST LEAVE LIKE THAT!! THIS IS NOT HEAD OF THE ROYAL GUARD BEHAVIOUR!!" Undyne looked at him and growled. 

"And what do you know..Second in command..?" She asked mocklingly. Papyrus frowned. It was the first time Sans has seen him act like this...towards Undyne to top it off. He said:

"APPERENTLY MORE THAN YOU, UNDYNE!!" Papyrus said. The armored human stopped, scoffed and left. Sans looked at his brother dumbfound. 

"WE NEED TO HELP HER SANS!! DO YOU KNOW WHERE SHE COULD HAVE FALLEN??" Sans thinks about it.

"i may have a hunch...Let's teleport and see, shall we?" The two join hands and they teleport away. 

Let's just hope that 'hunch' is correct and they get there...before someone else does...