So, in case you hadn't noticed, this story now has a kind of companion piece called MistTale: Lost Research. Some information that's not going to be revealed until later on in this story will be put there in the form of research entries, and it updates on weeks were I can't get a chapter for this done.

There's been fanart!

Mistral: darkphoenix512 .tumblr post/146885359854/im-working-on-digifying-it-i-also-have

Sans, Papyrus, and Mistral: darkphoenix512 .tumblr post/146553056899/bootsrcool-holy-crap-ive-been-working-away

Mistral again: darkphoenix512 .tumblr post/146499930585/bootsrcool-a-quick-draw-of-mistral-from

My tumblr in general: darkphoenix512 .tumblr

Reviews Responses!

First off, there's one review from a while ago that I missed due to it being posted at chapter one. I apologize for not answering sooner, Vequest. The monsters at Hogwarts are Fire Girl (in game, Fuku Fire), Monster Kid, Mistral, Sans, Papyrus, and Toriel.

...since that's the only question this week, thank you to Arashi IV of VI, Spyash2, FluffySheepLion, Ender the multiverse Detective, Nlou, WanderingWatermelon, Youdontseethis, and Guest for reviewing!

Saturday, October 31, 2015 was recorded as the first time all three skeleton brothers actually showed up for breakfast at Hogwarts. Sure, Papyrus had brought their food for them, but it was a step up from how reclusive they usually were during meals. Unfortunately, only they were warned of the events to come.

The second Mistral sat down with his food, all the surrounding Gryffindors (minus Frisk and, strangely, Hermione) scooched away. Hermione, confused, asked, "You can eat?"

Mistral stared at her for a moment before giving a slow nod. "yes."

Hermione's raised an eyebrow. "So you're eating...spaghetti."

Another nod, followed by the odd, seemingly impossible feat of a skeleton slurping a noodle. "my brother is really good at cooking, and we can't eat most kinds of food."

"Why?" Hermione asked, staring in attempt to see where the food was going. "Are skeletons allergic to them?"

A ghost of a smile overrode his usually neutral expression. "no."

Frisk rolled their eyes, knowing exactly what was coming.

"it goes right through us!" Mistral stated before chuckling softly.

Frisk shook their head, having a tiny text box appear in a way that kept Mistral from reading it. *You warn Hermione not to question it.

Hermione was at a loss for words. "Did...did you just...?"

Frisk let out a silent groan, their palm connecting to their forehead.

Mistral felt his soul quiver in anticipation. A human that wasn't Frisk...actually being nice. Sure, he had been nice first, on the train, but still! Nervously, he replied. "yes, i did. even i've got a funny bone." He waited expectantly, hoping that it hadn't been a mistake to try to open up.

His fears were dashed, however, when Hermione let out a giggle. "I can't believe this. A skeleton telling skeleton puns."

Mistral grinned widely. "have you heard sans? he's got at least a skele-ton more."

Hermione laughed a little louder. "My parents will never believe that I made friends with a skeleton!"

Immediately, Mistral's face fell. "d-does it matter that i'm s-skeleton?" he mumbled.

Hermione's eyes widened. "No! Of course not! You're nicer than practically everyone here!"

Mistral brightened up almost instantly. "let's be friends, then!"

Before Hermione could open her mouth to reply, the doors of the Great Hall slammed open. "WE'RE HERE, NERDS!"

Mistral pulled out his phone and took pictures of Hermione's and Frisk's shocked faces as a blue fish monster with red hair, better known as Undyne, charged up to Papyrus and began noogying him. A cry of "PLEASE DO NOT NOOGIE THE SKELETON!" echoed through the room.

"oh, yeah," Mistral said, his grin threatening to split his face, "undyne and alphys are coming today."

"It is very good to see you once more, Alphys! How has your job at the Ministry of Magic been?"

"I-it's great! The m-minister put me in ch-charge of a new r-r-research d-division! The O-Office for the A-Adaptation and Integration of M-Muggle Artifacts!"

"Oh my! That is wonderful, Alphys!"

"Th-thanks! I...those cell phones I p-perfected underground? They're g-going to mass produce them! U-Undyne managed to c-convince the m-minister to let all p-proceeds go back to the m-monsters!"

"That is truly wonderful, Alphys. I-oh. What is this?"

"O-one of the first made. It's extra tough, and extra large so y-you can use it..."

"O-oh. Alphys, you did not have to-"

"B-but I w-wanted to! For m-my friends!"

"Why, that is very thoughtful of you, Alphys. Thank you."

"Hey, punk! Heard you had a panic attack in class the other day!"

"p-p-please, undyne, can we n-not talk about it? p-please?"

"I just have one question that I need you to answer. AND YOU'D BETTER ANSWER TRUTHFULLY!"

"w-w-what?"

"...are you okay, Mistral?"

"..."

"Hey, take it easy. I-OOF! You're stronger than you look."

"...yeah."

"Was it...them?"

"no, not them. it hasn't been them in a point time. it was...all just a bad dream, that kept coming back to me."

"Punk, don't worry! Sans and Papyrus...well, Papyrus can protect you! And since I'm here, too..."

"gah! undyne! don't noogie me! let me go!"

"NEVER! NGAAAAAHHHHH!"

"oh, right! third floor, right hand side, there's something that bumbles calls 'a fate worse than death'."

"Are you challenging me to check it out?"

"yes, i am!"

"I'M GONNA DO IT! NGAAAAAH!"

"undyne, did you have to suplex the chair?"

"hey, granger, mind comin' with me for a walk?"

"O-Of course not, Professor Pianissimo!"

"relax, kid. outside'a class, i'm just sans."

"Right, Profe-er, Sans."

"...so, i saw you getting pretty chummy with my little bro earlier. whaddaya think of him?"

"He was really nice, even after I asked him if he was even able to eat. I'm glad I spoke to him, and I hope he wants to be friends."

"yeah...he's been having trouble lately, what with the humans and all. he's under a skele-ton of pressure right now."

A giggle. "Mistral used that same pun earlier..."

"heh...he's pretty cool. if you ever hurt him, though, you're gonna have a bad time."

"I u-understand, Profe-"

"we're outside'a class."

"...Sans."

Undyne grinned as she approached the place Mistral told her about. If it was anything like he said, she was going to have so. Much. Fun.

Her good mood died the second she tried the door's handle. "ARE YOU F***ING KIDDING ME?! OPEN UP, YOU STUPID DOOR!"

"Hmm...doesn't this look suspicious, oh brother of mine?"

"Why, yes it does. A strange fish lady frying to bust into a banned room?"

Undyne's ear fins twitched. She knew those voices, but where had she...

"She sure is a pretty one-"

"-and look! She likes us!"

"Yes, isn't my little girl just the sweetest little thing?"

"I dunno...what do you say-"

Undyne whirled around, an electric blue spear forming in her hands. She used it to pin one of the humans behind her against the wall. "You're not Fabian, and YOU!" She glared at the other. "You're not Gideon!"

The Gideon look-alike began talking fast. "No, they were our uncles! I'm George, and that's Fred!"

Undyne blinked, then scowled. "THEY DIDN'T HAVE SIBLINGS!"

"W-wait!" Fred choked out. "George, remember how Uncle Fabian and Uncle Gideon would tell us about Mafalda-"

"-and promise to take us to see her one day-"

"-and how Aunt Kasey told us that Mafalda was taken to Mount Ebbot by her dad-"

"-and...and she went missing..."

"...but no one ever found the body..."

By this point, Undyne's jaw had dropped in shock and her spear had faded into nothingness. "I...I'm not gonna get all emotional about my finding my family. I'm just gonna focus on breaking this door! NGAAAAAHHHH!" On her scream, she resummoned her spear and attacked the door again.

Fred looked at George. "Are you thinking what I'm thinking, Forge?"

George grinned back. "I believe I am, Gred."

Making a show of stepping forward, Fred stepped forward. "May we-"

George stepped up as well. "-help you-"

"-in the opening-"

"-of this door? It'll-"

"-make whatever you're doing-"

"-so much easier."

Undyne narrowed her eye. "Why should I trust you punks?"

"Because, my dear relative-"

"-that door is locked with magic-"

"-which means only magic-"

"-can open it again, and not-"

"-the magic of stabbing it-"

"-with a spear."

The fish monster weighed her options. On one hand, she could fight with the door for the entire time she was there, because she sure wasn't going to back down. On the other hand, she didn't trust those two...but she needed to get in there!

"i think you should go for it."

Undyne stiffened before turning to glare at Mistral, who had appeared behind Fred and George. The twins looked behind themselves before jumping as well. "HOW THE HELL DO YOU AND SANS DO THAT?!"

Mistral mockingly put a phalange to his hidden mandible. He pretended that the answer hit him and shrugged. "mmmagic!"

Her ear fins twitched as her face fell. "It's good to see you doing better, punk," she groaned.

The grin under Mistral's hood became slightly visible. "i'm glad to be baiter, gill."

Fred and George's faces lit up. "Wow! It's like-"

"-there's a miniature-"

"-Professor Sans!"

Immediately, Mistral flinched, as though remembering the presence of the two humans. "i...i'd a-ask them for help, u-undyne. it'll quicker."

Undyne jabbed her spear at the door again before screaming in frustration. "Fine, but make it quick!"

Identical grins spread across the twins' faces as they stepped between Undyne and the door, pulling their wands out in sync. Each pointing their wand at the offending (yet still completely unharmed) wooden door, they both said, "Alohomora." The door unlatched with a soft click.

"...That's it?"

Fred, George, and Mistral slowly looked over to the fish monster. She looked positively livid.

"I could have just SAID A SINGLE F***ING WORD to get that DAMN DOOR OPEN?!" With a roar of frustration, Undyne opened the door so hard, it cracked the stone wall it banged into. She then charged inside.

No one spoke as screaming, growling, and barking was heard inside the room. After a few moments, they worked up the courage to glance inside. Mistral leaned away once he saw what was inside, pulling out his phone from one of the many pockets within his cloak.

mistral: hey guess who just won the bet

alph: what no way there's nothing here

Mistral angled his phone so that he could take a picture of the fight, ignoring the confused looks of the Weasley twins. Once he had the picture, he sent it to not only Alphys, but Sans as well. Alphys's response was immediate.

alph: NOOOOOOO!

mistral: yeeeeessss!

Sans took a bit longer to respond.

big bro: heh cool. you tell alph?

mistral: yep

big bro: cool

When lunch came, the monsters (and Frisk) gathered in Toriel's rooms. As she had requested, there was a large room that was able to serve as both a living room and a dining area. Pressed up against one wall was a kitchenette filled with monster-made appliances. Her bedroom door was off to the side, a room for Frisk and a room for guests near it.

All in all, Mistral thought it was definitely cleaner than his brothers' rooms.

Toriel made several dishes for everyone to share, and Papyrus (who had inexplicably vanished shortly after breakfast) had entered the room excitedly, holding a gigantic bowl of spaghetti, announcing that he had been working all morning on it.

Mistral hated to be a picky eater, but he knew from experience that Toriel didn't put enough magic into her food after preparing it for him to digest it properly, so he was forced to stick with spaghetti.

As the meal went on, Undyne boasted about how she was "finally getting those punk-a...punk-butt aurors" to shape up. One auror in particular seemed to like her quite a bit, if only for the fact that his words of "constant vigilance" were actually given a point.

Alphys talked about how she had been showing wizards how to build electronics and how to make it so they ran on ambient magical energy.

Toriel spoke of how her classes were usually very well-behaved, but there were a few who tried to not listen...and were quickly set straight with a glare.

Frisk had excitedly signed about their classes, and how they'd sometimes hear some of the other Gryffindors whispering about a hairy potter, which made no sense to them.

The Great Papyrus went on and on about how amazing the school was, how he had been able to fly on a broomstick, and -

"misty's been sticking up for himself more," Sans interrupted, earning a shriek from Papyrus.

"Sans," Toriel said disapprovingly, "stop tormenting your brother. Besides, I think that he is-"

"PLEASE DO NOT, YOUR MAJESTY!"

"-branching out to the other students quite nicely."

Once Papyrus had calmed down, everyone looked to Sans for how he had been. Said skeleton shrugged and said that his room was finally done.

"so you finished the new self-sustaining trash tornado?" Mistral asked curiously, his pupil lights glowing a bit brighter.

Sans's grin grew wider. "yeah, since the one in snowdin was a winderful accident, i had to figure out how to recreate it."

Alphys looked confused. "S-Sans? Why d-do you even n-need a tornado in your r-room?"

"why wouldn't i need a tornado in my room?"

When no one could come up with a good reason (or rather, a reason that Sans didn't shoot down immediately), the conversation topic was dropped. Finally, they got to Mistral. "i...i've tried opening up more to the humans in my classes, but...sometimes, i feel like a whimsun that can't escape."

"well, you know what they say."

Papyrus scowled at his older brother. "NO."

"you whimsun, you lose some."

"EVERYTHING IS TERRIBLE!" the tallest skeleton screamed.

The gathering of friends lasted right up to the feast. It would have lasted for longer if not for Toriel noticing the time. So Mistral was sitting in the Great Hall with Frisk, looking up and down the Gryffindor table to find Hermione. For some reason, though, she was no where to be seen.

"frisk?" he asked his friend. "have you seen hermione?"

Frisk shook their head.

Frowning, Mistral turned to the boy next to him, who he recognized after a few seconds as Neville. "have you seen hermione anywhere?"

Neville shook his head. "No, I haven't. Lavender might know where she is, though."

Both fell silent for a moment before Mistral asked, "and which one is lavender?"

The boy pointed at a girl farther down the table.

Mistral nodded as he got to his feet. "thanks, neville!" He made his way down to Lavender, everyone he passed falling silent. Mistral, the kid that only spoke to a few people, was actually approaching someone.

When he stopped behind Lavender, said girl nervously turned around. "Yes?

"do you know where hermione is?" he asked, his worry for his friend overriding his fear of humans for the time being.

Lavender nodded. "She's in the girls' toilets. Ron Weasley said something mean earlier and she's been there ever since."

As Lavender spoke, the lights in Mistral's eye sockets died. "thank you," he said lowly before walking towards the doors of the Great Hall.

"Mr. Pianissimo!" Dumbledore's voice cut over the noise of the Great Hall, silencing everyone. "Where are you going?"

Mistral turned to face the headmaster and pulled his hood down. Despite the neutral expression on his face, the lack of light in his eye socket screamed to practically everyone in the room to back away. "i am going to find my friend." Before anyone could argue, he left.

Not five minutes later, Professor Quirrel threw open the doors of the Great Hall. "Troll..." he gasped, "in the dungeons...thought you ought to know..." He fainted.

As the Great Hall fell into a panic, Papyrus was already bolting out the door, Sans tucked under his arm. After a few seconds, Undyne ran out the door as well, an electric blue spear forming in her hands.

"hermione?" Mistral called out from the entrance to the bathroom.

A muffled sob was his only reply.

"hermione, i'm coming in, ok?"

Another sob.

Mistral entered, and looked from stall to stall, trying to find her. When he found the stall with Hermione in it, he sat down. They sat in a silence that was occasionally broken by the soft sound of Hermione's crying. After a few moments, Mistral had an idea. He knocked twice on the stall door.

"...what?"

"no," Mistral said, fake-exasperated. "you're supposed to ask me who's there. now let's try that again." He knocked on the door again.

"W-who's there?"

"car."

"Car who?"

"i car about my friends, hermione. a-and we're still friends, right?"

Hermione giggled. "I-if you still want to be."

Mistral grinned. "then we're friends." He was silent for a few moments before he knocked on the door once more.

"Who's there?"

"weasel."

"Weasel who?"

"what did that weasel say to you?"

Hermione fell silent.

Mistral immediately backpedaled. "uh, you don't have to answer that if you don't want-"

"'It's no wonder no one can stand her'," Hermione quoted sadly. "'She's a nightmare.'"

...

"Mistral, are you still there?"

"...the next time i see that weasel, he is going to regret what he has done."

"No, it's honestly fine, Mistral!" Hermione said, unnerved by the tone, or lack thereof, her friend had.

Mistral opened his mouth to argue, but stopped when he saw the hulking figure stumble into the room, trailing its club behind it. When he finally found his voice, he smiled warmly. "hello!" he said happily. "who are you?"

Remember how Ron talks about him mother's second cousin that was a squib that they never talk about? It could have been canon that his daughter, named Mafalda, was born a witch and sent to Hogwarts. Well, whether canon or not with Harry Potter, Mafalda's there now.

Also: TROLLOLOLOLOLOLOLOLOL

...I regret nothing but not updating sooner.