Since I've written my other GMD crossover with Hotel Transylvania, To the Sewer I Go, I decided to write another one. I watched the first one when I was fifteen and enjoyed it. I could see the GMD characters getting along with the HT characters. Anyway, enjoy the crossover fic.

Entering Transylvania

Basil and company were traveling through a portal to Hotel Transylvania in Romania. It was quite a ride with the mice, bat, and dog swirling out of control and they couldn't help but scream like ghosts and banshees in the sky of the dark night.

Then suddenly, they landed safely with a thud. As soon as they recovered from their fall, Basil read the sign which read HOTEL TRANSYLVANIA. "Well chaps, it looks like we're here," he announced.

Everyone gathered their belongings and hopped up the stairs. Basil knocked on the door.

"Drac," Frankenstein said, "We have visitors."

"Oh, thank you, Frankenstein," Count Dracula replied and went to open the door. "Hi."

"Hello, this must be Hotel Transylvania according to my calculations," Basil said, "Am I right?"

Count Dracula shot him a slightly annoyed look. "Yes, you have come to the right place."

"Forgive Basil," Dawson said, "You know how he is at observing things."

"Yes, I see that," Dracula observed, still not pleased, then changed his expression with a warm smile, adding, "Make yourselves comfortable."

'You heard the Drac, make yourselves at home!" Frankenstein shouted with glee.

"Basil," Dawson said.

"Yes, Doctor?" Basil asked.

"As you know, not everyone is going to speak the same way you do with your wording." As always, Dawson was wise and was good with setting boundaries for Basil.

"But, Dawson….I–"

"You're not in trouble, but be aware of it."

Basil sighed. "I suppose."

Frankenstein ushered the guests to the couch to sit on.

"This is the life," Fidget said, wrapping his wing around Olivia.

She turned to smile at him. "You can say that again," she agreed.

Toby panted excitedly as he watched werewolf pups playing and bounded off the couch to join them.

"Toby, wait!" Basil shouted as he took off after him with Dawson following his lead.

"Looks like Toby wants to have fun," Mr. Flaversham observed. "Would you like to play with him?"

Olivia watched protectively at Toby, hoping he wasn't getting hurt by werewolf pups, but seeing how friendly they were gave her second thoughts. "Fidget, do you want to join Toby?" she asked daringly.

"Yeah," Fidget answered with a nod. "Climb on my back, Livy!"

Olivia carefully climbed on his back, making sure she didn't injure his back and Fidget glided to where Toby was playing.

Messy New Friends

"Toby, I don't want you to get hurt." Basil, trying to break the dog fight when he bumped into a pair of glasses.

"Ow!" a voice groaned.

"Oh, I'm terribly sorry!" Basil apologized, "I didn't see you."

"Yeah, I get that a lot," the invisible man complained.

Just then, something broke.

"Housekeeping!" Count Dracula ordered.

The witches, who were his housekeepers zoomed in the living room on brooms. One witch vacuumed up the mess.

"Sorry, Uncle Drac," one werewolf pup apologized.

"We were just playing," said another.

"That's no excuse for breaking vases!" Dracula scolded, "Now go play somewhere else!" He pointed to the stairs.

Satisfied with Dracula's last sentence, they continued running and squabbling with one another.

"Wait!" Olivia shouted.

The werewolf pups stopped at the sound of her voice.

"Anyone want a crumpet?" Olivia asked sweetly as she took out a crumpet from one of her pockets.

"I've got another!" Fidget exclaimed proudly in a sing song voice and did the same thing Olivia had done.

The werewolf pups greedily licked their chops.

"Wait! Don't throw the–" a motherly voice warned, but Fidget and Olivia already threw the crumpets in the pups' direction, causing them to make even more messes. "Crumpets."

"We're sorry, Mrs. Werewolf," Olivia apologized.

"We didn't know it was going to happen," Fidget uttered sadly as he took off his cap.

"You're right," Wanda Werewolf said gently, "They do this every day."

"Wanda's got a point," her husband, Wayne, the father of the pups said, "They were born for this, except our daughter, Winnie. I'm Wanda's husband, Wayne."

"Winnie?" Olivia and Fidget gasped.

Winnie actively stood in front of her siblings to stop the fight by motioning her palm towards them and whistled with her finger in her mouth. Thankfully, they stopped.

"Works every time," Wayne said.

"That's our girl," Wanda declared proudly.

"Hi, guys," Winnie greeted. "I'm Winnie."

"Hi, Winnie," Olivia and Fidget greeted back.

"Don't mind my siblings," Winnie said, "They're a lot of trouble."

"I can see that," Olivia said, "I'm Olivia and this is my friend, Fidget."

Fidget warmly waved at Winnie.

"Nice to meet you. Meet my Zing-Zing." Winnie whistled for her boyfriend, Dennis, who emerged in his bat form, greeting the young werewolf, mouse, and bat.

"Hi," Dennis said in his human form, "I'm Dennis."

A dog bark sounded off in the hotel.

Fidget and Olivia gasped at how big the dog was. It was even bigger than Toby!

"That's Dennis's dog, Tinkles," Mavis Dracula said. "He's friendly."

Tinkles panted, sniffed, and licked Olivia and Fidget.

"Good boy, Tinkles!" Olivia said with a giggle.

"Hehehe, yeah, funny doggy, Tinkles!" Fidget chuckled.

"Here, have a crumpet," Olivia offered. "Want one?" She held out the crumpet.

At the sight of it, Tinkles licked it off and ate it in one gulp.

"Want another?" Fidget asked as he handed him another, making Tinkles eat it.

"Don't give him too many," Jonathon warned, "Or else, he'll get sick!"

"This is my zing, Jonny," Mavis said.

"Zing?" Fidget and Olivia were confused.

"Zing is true love," Mavis explained, "Or a true friend."

"That means Fidget is my zing?" Olivia asked.

"And Olivia is my zing?" seconded Fidget.

"Yes," Mavis said, "I invited you all to the hotel."

"Mavis told me all about you," Jonny put in, "You and your friends rock."

This comment made Fidget and Olivia smile.

"Olivia, why don't you take off your coat and stay awhile?" Mavis suggested. "Or maybe I can do it." Even though Olivia was capable of taking her coat, scarf, and hat off, she was glad Mavis did it for her. In fact, she recalled Mrs. Judson taking off her hat and scarf when she and Dawson were out in the rain in pursuit of Baker Street.

Tinkles caught sight of another dog about his size and went over to play with him.

"He's going over to Toby!" Olivia exclaimed.

Fidget placed her on his back. "Follow him, guys!" he shouted and started to fly over to the dogs.

Dennis, Winnie, Mavis, and Jonny took off after him to join the fun. As always, Mavis in her bat form, grabbed her "zing" by the collar of his shirt.

Upon seeing Mavis, Dracula told Basil and Dawson, "Mavy Wavy gets that from me."

"Mavy Wavy?" Basil and Dawson gawked at him.

"Mavis, my daughter," Dracula replied. "She told me so much about you and your friends."

"And me, as well," Vlad, Drac's father chimed in. "I'm Vlad, Drac's father!"

"And I'm Erika Van Helsing," said a woman.

Basil and Dawson took off their hats and said, "Pleasure to meet you, Vlad and Erika."

Basil stopped to look at his partner. "Dawson, we forgot about Fidget, Toby, and the Flavershams."

"Count Dracula, can you please help us find our friends?" Dawson asked. "There's a peg legged bat, a basset hound, a mouse with glasses with a little girl…"

"I'll find them," Count Dracula promised and he scanned the living room as he located where Basil's and Dawson's friends were.

In hindsight, Basil's and Dawson's friends were alright. "They're okay," Dracula told them. "Mavis, Jonny, Denisovich, Winnie, and Tinkles are playing with them."

The detectives heaved a sigh of relief.

"Climb on my back," Count Dracula commanded, his cape covering his mouth and morphed into a bat. Basil and Dawson hopped on his back and he flew the mice to the location of the Flavershams, Fidget, and Toby.

By the time they arrived, Fidget, Olivia, and her father rubbed Tinkles' belly and Dennis and Winnie rubbed Toby's.

Basil whistled to get everyone's attention. "Having fun?" he asked.

"Yes, Basil!" Fidget, Dennis, Winnie, and the Flavershams replied.

"We were looking all over for you," said Basil.

"But we were told by Count Dracula that you were alright," Dawson finished for the worried detective.

"Yes, and what matters is that you are safe and thanks to Count Dracula," Basil continued.

Drac and Vlad changed back into vampires.

"And me," Vlad added.

"And me," Erika put in proudly.

"Guests, this is my father, Vlad and my new wife, Erika Van Helsing," Dracula said to his guests.

"Hi," Fidget and the Flavershams greeted warmly. Toby barked as his greeting.

Martha and Getting Settled In

"Guests, there is something I'd like to show you," Count Dracula said to Basil, Dawson, Olivia, Hiram Flaversham, Fidget, and Toby and started on his way to the coffin room with his belongings when his guests, his daughter, his son-in-law, his father, his new wife, his grandson, and Winnie followed.

"It's not so bad in there once you get used to Drac's room," Jonny assured them, "It's wicked cool!"

"Shh…" Mavis hissed. To her son- their son, she added, "Dennis, honey, this is your grandmother. Your vamma." She was referring to her mother, Martha."

"Yes, Denisovich, my vampson, you can call her 'Mama Martha'," Dracula told his grandson.

"Vampson?" the guests asked.

"Vampire grandson and vampa is 'vampire grandpa'."

"And Vamma is 'vampire grandma'," Mavis added.

"Mama Martha," Dennis repeated.

"Good," Dracula said.

"Nice job, little dude," Jonny said, tousling Dennis's hair.

"Who's this beautiful young lady?" Basil asked.

"Martha, my wife," Dracula replied as he gestured towards the portrait of himself and his wife.

Basil and co let out a gasp in shock. "But you already have one," Basil said.

"Martha died a while ago by hateful humans," Count Dracula corrected. "But Jonny's different."

"And you still have me," Erika reminded him gently.

"I still have you," Dracula said, embracing his new wife.

"That's my grandma, Martha, Winnie," Dennis told his friend.

"She looks sweet, Dennis," Winnie said.

"Winnie!" Wayne and Wanda werewolf called for their daughter.

"Coming, Mom and Dad!" Winnie shouted and ran over to her parents and siblings. "Bye, guys!"

"Bye, Winnie!" Dennis said with a wave.

A door knocked.

"Come in!" Dracula called.

"Drac, it's getting late," Frankenstein said, "You think it's about time the guests went to bed?"

"Oh, they must be exhausted," his wife, Eunice said thoughtfully.

"Alright, guests, allow Honey Bat, Mavis and Jonny to show you to your rooms."

Mavis changed into a bat and led Jonny, Dennis, and Basil and co to the guest room. On their way, they heard each monster doorknob with closed eyes say, "DO NOT DISTURB!" until they found one that said, "Welcome and enjoy your stay here."

"Thank you very much," Basil said.

Mavis, in her vampire form, opened the door and said, "Goodnight."

"Goodnight," Basil and co answered as they made their way in.

More Fun at the Hotel

Everyone at the hotel was outside.

"Fidget, do you want a bat race?" Dennis, in his bat form, asked Fidget.

"Yeah, sure," Fidget replied, "Count me in, Dennis!"

"Mind if I join, Dennis?" Mavis, in her bat form, asked.

"No, Mommy, you can play if you want," Dennis told his mother.

"Aww, thanks, sweetie," Mavis said, hugging her son and showering him with kisses.

Even Dracula, Vlad, Foxglove, Batso, Stellaluna, Batty Koda, and Bartok were part of the bat race.

"On your mark, get set…." Frankenstein said, then shouted, "Go!"

"Go, Team Drac!" Murray, the mummy yelled from the bleachers.

"Go, Dennis!" Winnie shouted.

"Go, Mavis! Go Drac!" Erika and Jonny shouted.

"I wish I was a bat," Jonny whined.

"Go, Bartok!" Bartok's girlfriend exclaimed.

"Go, Fidget!" Olivia, her father, and friends shouted.

"And it looks like Fidget's picking up speed," Frankenstein announced, "But Bartok catches up to him. Things don't look too good for Fidget." Fidget started panting with exhaustion, but took breaths before continuing to fly ahead of Bartok. "But wait, Fidget starts to pick up speed again! Unbelievable!"

After a while, the race was over and Fidget had won.

"Good job, Fidget!" Stellaluna praised, placing her wing on his shoulder.

"Yeah, great job, Fidget!" Foxglove said, doing the same.

"How did you become so speedy?" Batty Koda asked.

"I guess I just am," Fidget said nervously, shrugging his shoulders.

"Good race, Fidget!" Batso told Fidget.

"You were a pro, Fidget!" Bartok shouted. "Woo hoo!" Then he pounded the air. Every bat gave each other a high five, emphasizing teamwork.

Next, everyone did the limbo, the safe way without being caught on fire. Mavis and Jonny went first. Dracula and Erika went second. Dennis and Winnie went third, and the list went on.

Then, Mavis, Jonny, Dennis, Winnie, Olivia, Fidget, Blobby's son, and the werewolf pups broke the piñata to get candy and eat it. They saved some for their families and friends.

Finally, everyone was at the pool, diving, playing ball, playing tag, and just swimming. For the divers, especially Fidget, Olivia, and co, Jonny, Dennis, and Winnie, they were caught by Blobby and his son by letting them land inside them – literally. Each diver jumped off the water monster's tail. Mavis wasn't afraid and neither was her father or Erika.

That night, everyone showered, got dressed, and ate.

Later on, Fidget grew so tired that he ended up falling asleep on the couch.

Seeing this, Dracula picked him up. "Aww, did someone go beddy bye on the couch?" he said in a baby voice and brought him up to bed. In the room, Dracula rubbed the little bat's back as he said in a hypnotic voice, "You're getting sleepy. Sooo sleepy that your body becomes soothed and relaxed. Sleeeep. Nighty night."

"Dad," Mavis said.

"Yes, Mavis?" Dracula inquired.

"Looks like someone else fell asleep on the cough, as well," Mavis said, holding Olivia and setting the little mouse, where Fidget was lying.

Jonny, who was carrying Dennis, came to join Dracula and Mavis at the scene. "Aww, isn't this sweet?" mused Jonny.

"Aww, it is," Mavis agreed.

Home Sweet Home in London

The next day, Basil and co packed their things, ate with the monsters, and bade their friends goodbye as they made their way back to London in the portal.

The End

Author's note: Hope you all enjoyed. I really like the Hotel Transylvania franchise, so I saw the other two in theaters. That's why I added new characters from those movies.

Batso belongs to Happily Ever After. Bartok belongs to 20th Century Fox, Don Bluth, and the film, Anastasia. Batty Koda also belongs to 20th Century Fox and the film, Ferngully: The Last Rainforest. Stellaluna belongs to Janell Canon and MGM. Foxglove belongs to Disney's TV series, Chip 'n Dale: Rescue Rangers. Fidget, Basil, Dawson, Toby, Olivia, and her father, Hiram Flaversham belong to Disney and The Great Mouse Detective. All Hotel Transylvania characters belong to Sony Pictures Animation.