After the train incident, Arabella was told to be put on bed rest until she was feeling better, it was Ratchets ordered as the kids were keeping her company even the other bots in the base when they had time.

Now Arabella was sitting on a couch in the human area, trying to read her book in peace but one, pink-haired girl was disturbing the ' said ' peace.

" Can we please see inside your suitcase? " Miko asked as she tried to give Arabella the puppy's eyes. She tried looking away but to her shock, Raf joined in too after reading about the Fantastic Beast books he wanted to see all the magical animals in her suitcase.

" Oh come on Raf, that's not fair " Arabella wined and tried to look away from them only to meet Bumblebee's round blue optics which reminded her of an adorable Mooncalves, which she finally broke.

" Fine " sighed as they cheered, attracting the attention of the others, " What are they so happy about? " Arcee asked seeing Bumblebee, Miko, and Raf jumping up and down.

" They want to go inside my suitcase " She sighed but in truth she wanted to show them all the magical beasts that were in her suitcase and introduce them to what more magic has to offer.

Arabella made everyone gather in the center of the base, surprisingly Optimus and Ratchet wanted to join.

Raf tapped her shoulder" Um, how do they fit in you know..." Arabella realized what he meant so she whipped up her wand and pointed toward the Autobots. A bright light flashed throughout the whole room making the humans and bots cover their eyes/optics.

The kids and Arabella were now standing in front of the human-sized bots which were slightly taller than Arabella, Bulkhead's jaw had dropped as he tried to comprehend what happened, "How did you do that?"

" A simple size spell " the brunette witch shrugged as she placed her suitcase on the ground, "If you want to meet the others, follow me." Opening the cover, she began climbing down into her case as everyone stared at the bag with wide eyes. Even Optimus was shocked at seeing this.

Miko noticed none of the others had moved, "Well? Are you all going to be rude and just stand there?" Slowly, everyone move from their spots and walked over to the magical suitcase.

Ratchet leaned down to look into the bag and noticed Arabella waving up at him. "You can just step in, don't worry, the suitcase is magic, so you will be able to fit." Everyone heard what she said. Standing up, he took his first step into the back and started heading down the ladder.

He looked at the rest of the Autobots and the humans as he was already waist-deep into the suitcase, "I feel ridiculous." he muttered. Eventually, he got down to the bottom, and his jaw dropped once he saw the vast space.

One by one, the Autobots went into the suitcase. Miko was ecstatic when it was her turn, "Oh, this is amazing! Why can't I have a bag like this?" Once she reached the base of the ladder, she had the same look as the rest of the staff that was already down there.

The only ones left up top were Jack and Optimus.

"Well, I guess we better not keep everyone waiting." Jack put a foot in a went down the ladder. Optimus was next to the ladder when Jack reached the bottom.

"Dude... this... I..." His mind couldn't function as he stared at the massive den, which put their Autobot base to shame, and the cozy fireplace.

Once Optimus got to the bottom, he found his throat processors lock up as he was astonished at the magnificent architecture inside the tiny case. The den had a library behind them that was littered with hundreds, if not thousands, of books. He could see Bulkhead on the second level with Arcee, both of them were trying to find the end of the bookcases as they passed each stack.

Ratchet was looking at the infinite shelves of books as he was taking in the grandeur of Arabella's case. : Now, this is quite a cozy place: Bumblebee commented enjoying the style and comfort of the room.

It seemed like everything in Arabella's room seemed had its own personality like every object had its own story to tell. Arabella, Miko, and Ratchet had walked through an archway and were in the potions lab.

There were hundreds of ingredients on the walls and even more books. There were candles floating around. In the center of the room was a massive cauldron with a fire roaring underneath it, but whatever was inside the cauldron wasn't boiling over.

Everyone watched as vials flew out of a drawer and scooped up the potion fermenting in the large cauldron. Raf jumped to the sound of a roar and other animalistic noises coming from the opaque glass double doors. Even the Autobots paused looking at the source of the noise. The door was a pale, sea green that was decorated with intricate designs.

" Here ladies and gentlemen is where the real fun begins, welcome to the Vivarium" She introduced as she opened both doors.

The Autobots and the humans' kids gasped at the awe-inspiring sight. Before them were an endless field of land with forest and mountains surrounding them and a massive, crystal-clear lake was centered nearby.

They watched creatures in the distance flying or running in the fields. " It's bigger from the inside! " Miko commented, gasping at the marvelous sight.

A mighty cry was heard above as everyone besides Arabella stumbled back in shock from the winged creature that descended from the ground.

The creature had the body, hind legs, and tail of a horse; but the front legs, wings, and head of what seemed to be a giant eagle, with a cruel, steel-colored beak and large, brilliantly orange eyes. The talons on its front legs were half a foot long and deadly looking

Arabella looked at it with a smile, " Come on. it's okay. Down you come " The creature landed next to her and she started to gently pat it.

" His name is Buckbeak, he's a Hippogriff. " Arabella says as she continued to gently pet his feathers, the others tried to get a closer look but Buckbeak cawed at them.

" No sorry, stay there, he's a bit wee sensitive to strangers. The first thing about Hippogriffs is that they are very proud and they get easily offended once you gain their respect, they become loyal companions "

Optimus was to first to slowly approach Buckbeack, he bowed long enough to gain the magical hybrid respect to bow back, and soon Optimus was patting the soft feathers, " Where do you find him? "

"Let's say I was given by a wizard convict " Everyone's optics or eyes widen at her statement, " It's a long story, remind me to tell you guys about it later "

They watched as she comforted the winged creature, " Once a bond is made between a magical creature, it can never be severed " Arabella threw up a piece of food as Buckbeak flew up and caught it.

Everyone watched how the Hippogriff soar through the air along with other creatures. " Come on, there's more to see around here, and make sure you guys stick by me in here don't want you guys to get eaten " she joked but the others felt otherwise.

Soon the rest became entranced by the magical environment they were in as they continued the tour. Miko and Raf were pointing at the unicorns grazing on a grassy field nearby as the Autobots watched as the Thestrals soared in the air.

" Hey, Arabella what creature are they?" Bulkhead asked as the three humans looked confused about where Bulkhead was pointing, to them it was just the sky. " There's nothing there," Miko said, confused.

"They're Thestrals. They can't see them." Arabella explained quickly. "Only people who have seen someone die in front of them can see a Thestrals."

Optimus looked over at the creatures before turning back to Arabella, "Can you see them?" She nodded, "So... you've seen someone die then?"

" I've seen someone die, and well... it wasn't pretty." She explained sadly. The others were silent, surprised that she saw death at her age. Soon they continued with the tour, interacting with all sorts of creatures that were friendly to them.

They met the mischievous Niffler Plarry who caused chaos at their base once and also encountered Teddy who was sunbathing on one of the rocks.

Optimus was behind the group as they were walking through a bamboo forest, it was tranquil, and hearing the chirps from the birds above.

He felt like something was following him, he turned around to find a deer-like creature covered with golden bronze scales, Optimus didn't know that it was a Qilin that was following him.

" Hello, little one" Optimus gently patted the creature's head, its gold eyes staring at his own electric blue optics. It chirps as it kneels down to the Autobot leader, Optimus was slightly surprised why the little creature bowed to him.

" By Merlin now that's a rare sight to see" Optimus and the Qilin turned around to see Arabella showing shock but curiosity.

" What do you mean Arabella?" Optimus asked as the Qilin walks over to Arabella and nuzzles her leg.

" Well I rescued this one from human poachers in China, they are extremely rare because of their precognitive abilities and could read someone's soul " Arabella explained as she picked up the Qulin as it purrs to her touch.

" Precognitive? Meaning it can predict the future" Optimus asked and Arabella nodded.

" Qilins were used in the ancient tradition of The Walk of The Qilin Ceremony, where they used their powers to choose the next Supreme Mugwump. They can tell if a person's soul were pure of heart so they bowed to whoever was worthy"

Optimus couldn't help but think about what Arabella just said, he remembered how he was chosen to become the next Prime but the sinking feeling in his spark that he wasn't worthy of such a title, especially after losing Cybertron and so many sparks from this war.

As if Arabella knew what Optimus was thinking, she gently grabbed his metal hand which slightly surprised the Autobot leader himself. " Believe this that you are worthy and pure of heart or should I say spark Optimus" They looked at each other as Optimus couldn't help but admire her warm, honey-brown orbs.

A scream interrupted their moment as they rushed to find Miko being picked up by the scruff of her shirt by a Ukrainian Ironbelly. The Autobots had their weapons pointing at the dragon as it looked curious at the humans and the metal being.

" Snuffles, be a good dragon and put Miko down" the dragon snorted playfully as it shake its head, shaking Miko as well " Drop her or no belly rubs" which did the trick cause it whined before slowly dropping Miko on the floor as it lay down, wanting the belly rub

" You're such a big baby dragon" Arabella cooed as she rubbed the soft, scaley belly. Miko and Raf joined in on the belly rub which Jack hesitantly joined

" You are full of surprises kid" Bulkhead chuckled as he patted the dragon's head which it purred at.

Arabella smiled at the green Autobot as she grabbed two buckets that seemed to be filled with pallets. " Hey Bee and Raf, would you guys mind throwing some of those pallets to the Mooncalves over there " Arabella handed them two buckets.

The two looked at each other before heading toward the Mooncalves. The habitat was a hill with burrows from the ground as multiple four-legged creatures were staring intensely at the full moon. They had smooth, pale grey skin, and four spindly legs that ended in large flat webbed feet. It also had a very long neck and bulging blue eyes that sat on the top of its head.

The Mooncalves turned around seeing the two people holding their food as they all excitedly trotted toward them. Bumblebee grabbed a handful of the pallets and threw them, amazed at how they levitated in front of the Mooncalves.

Raf was in awe as the Mooncalves chirped and purs at them and munch on the pallets. As Bee looked at the mooncalf, the others couldn't help but compare them as they both had big, round eyes.

Arabella felt someone nudge her back and she found Snuffles sulking behind her, " Oh you need your daily flight exercise, who wants to join me?" She asked the others, Miko pretty much was jumping up and down near the dragon, waiting to hop on.

" Okay then, Miko is going first then "The Japanese girl looked at her guardian and then smirked at the idea she just had.

" Actually Bulkhead wants to go first "

" yeah ... wait what?! "

Bulkhead spluttered and the next thing he knew that he was sitting behind Arabella, Miko smiled at the green wrecker ' not ' so innocently as she remembered how her guardian accidentally spilled his crush on the witch to her.

When the kids had to build a science project for school, Arabella was busy doing her potions, she didn't notice the giant mech in the room staring at them from the railing on the next level.

Bulkhead was watching her make her potions and was curious about what they were doing. Bulkhead jumped when Miko spoke up behind him, "What are you doing?"

"What?! Nothing!" Bulkhead said quickly as he looked back. Miko was giving him a know-it-all smirk, they had just finished making their solar system.

"Doesn't look like nothing." She leaned to the side and looked down, "It almost looks like you're spying on our good witch here."

"N~no! I~uh... I was just... making sure that she's alright." He said as he fell under Miko's doubtful look.

"From all the way up here?" Miko chuckled, "Are you sure you aren't staring at my friend? I mean, you were giving Arabella a pretty long stare just then." She saw how the wrecker was looking at Arabella. Within the last couple of weeks, Miko had caught Bulkhead gawking at the witch almost every day.

Bulkhead gave a nervous laugh, "I don't know what ya mean. I wasn't doing anything." He knew he'd just gotten caught by his charge. Bulkhead wanted to deny it, but he knew he was staring at Arabella.

Miko rolled her eyes and leaned against the railing, "Mhm~sure. Keep telling yourself that, Bulk." Miko looked down at her friend and noticed Bumblebee acting just as strange as Bulkhead, "I'm not judging, Bulk. I'm just saying~you kinda make it too obvious." Miko knew Arabella was blind to how Bulkhead and the others were acting around her, but she knew better.

This wrecker clearly had a crush on her friend and was clearly acting nervous around Arabella during the time that they were together.

Arabella turned to the dragon and gently petted it, " Snuffles, up gently " The dragon snorted and spread their wings, " See?" she said turning to Bulkhead who looked like he could sweat bullets, " Nothing to be afraid of "

Snuffle launched up into the air.

Bulkhead screamed.

The poor, green wrecker clinging onto Arabella's waist as they were going higher and faster into the air. Soon the forest became a blob of green and was above the lake. " Snuffles! What's wrong with you?" she scolded but it did nothing.

Snuffle went free fall which made Bulkhead scream even more, much to Miko's amusement from below. " Bad dragon " but soon Snuffles wing caught the breeze and they flew gently above the clouds. Bulkhead opened his optics and his intake fell away. It was an ocean of orange, pink, and yellow as the clouds surrounded them. His grip on Arabella's waist loosened as he took in the magnificent view.

" This is magical Arabella " he awed as she smiled gently back at him, soon they landed on the ground where the others were. " Okay ... who's next? "

Everyone raised their hands or servos.

A/N: Finally done!!! Sorry for the long update. I enjoyed writing this chapter. I was inspired by the How to train your dragon flight scene and the game Hogwarts Legacy.

comment below if you guys want chapters ideas or special au's that i should add in :)

Thank You for reading, commenting and voting! Hope you enjoy this tfp x harry potter crossover fanfiction