As they made their way to the secret cave, a school of fish swam by.

"Hey, look, Rainbow Fish!" Darla giggled as she saw a fish with shiny scales swimming with a blue male fish and a female young seahorse who seemed to have a human-like face.

"Hey, it is..." Cherry replied. "I haven't read that book in years... And there's Blue and Sea Filly."

"Wow." Domino said.

"All this sub needs is a styling green paint job, and it'll be da bomb diggety!" Fred praised.

"I think it's perfect the way it is." Hallie said.

"Avast ye, lubbers!" Atticus called out. "Prepare to board!"

"Atticus, stop it, you sound so stupid." Cherry rolled her eyes.

"Now, Cherry..." Michelle spoke up to that.

"I know, I know," Cherry rolled her eyes. "Be nice."

"Hey, guys, check this out, there's even a sonar activated camera!" Atticus smiled.

"Activating exterior lights!" Shannon told him.

"Ooh." Little Dipper smiled.

"And then we'll find the giant squid and he'll crush us from the inside." Cherry smirked.

"Oh, Cherry, don't jinx us." Drell begged.

"Oh, come on, everyone knows the giant squid is a myth." Cherry scoffed.

"No, he isn't." Drell said.

"Oh, and I bet he's as real as the chicken of the sea." Cherry smirked.

"Silly Cherry, that's tuna!" Bud laughed.

Cherry narrowed her eyes and sighed to her father's slowness. "Atticus, you better turn on the lights," She then suggested. "It looks pretty dark up ahead and not even I can see down there."

"You got it." Atticus said.

The lights soon came on as they went to check out the cave within the loch to see if they could find anything about Nessie.

"Now, all we need to do is find the entrance of the underwater caves." Atticus told the others as he looked around.

"Man, it's darker than Cherry's bedroom in here." Michelle commented.

"Hey!" Cherry glared before she then gave up. "Yeah, you got a point there..."

"Ronsters! Ronsters!" Scooby yelped.

"Aw, Uncle Scooby, that's just a school of eels!" Scrappy told his cowardly uncle.

"That's right." Patch nodded.

"Scooby, please get off, I have to concentrate." Atticus told the cowardly Great Dane.

"Rorry, Ratticus..." Scooby pouted as he soon got off of him.

Soon enough, they made it to the exit.

"Man, it's creepy here..." Atticus said. "Kinda reminds me of Evil Manta's lair."

"Look!" Shannon called out. "I think we found the entrance!"

"Aw, so it is!" Atticus smiled as he went that way.

"Great." Patch said.

"And I thought that would be impossible." Shannon smiled.

"Well, nothing's impossible when you got Scooby-Doo around." Daphne smiled back to her cousin.

"Aw, shucks!" Scooby smiled bashfully.

Once they surfaced, the door opened.

"Is it my imagination or are we in shallow water?" Fred asked.

"Prepare to surface!" Atticus called out.

"Aye-Aye!" Darla saluted as she wore a sailor dress.

"Nice dress." Hallie smiled.

"Oh, do you like it?" Darla smiled back. "I made it myself~"

Annie smiled as well as the dress was quite cute much like the girl wearing it.

The mini sub soon floated to the surface and they were on dry land and the hatch opened up.

"Looks roomy." Little Dipper smiled.

"Whoa... This is amazing..." Cherry looked shocked and astonished by the sights.

"Hello?" Fred called out only to get an echo.

"Please don't do that, Fred." Shaggy begged.

"Why?" Fred asked.

"I'm afraid something might answer." Shaggy replied nervously as Fred helped Daphne out of the sub before laughing nervously.

"Like what?" Cherry scoffed. "The Giant Squid?"

"I doubt anything is here." Atticus said.

Scooby soon sniffed around with Patch just to make sure.

"You know, this kinda reminds me of that world that Milo Thatch found," Drell told them. "Way back in 1914."

"He found a world?" Bud asked as he heard about that story from his parents before him. "I thought the crew told Mr. Whitmore that they didn't find anything and that Milo went down and never returned?"

"Ah, yes, but they just told Whitmore that to throw them off the trail of the Lost Empire of Atlantis." Drell smirked.

"Ohh." Bud said.

"Fun story, I'm surprised you all don't know about it." Drell replied.

"Well, Atlantis isn't really studied in schools much..." Annie shrugged with Hallie. "It sounds like a lot of fun though."

"So, Atlantis is real then?" Hallie asked.

"Oh, yes," Drell replied. "Especially Kidagakash."

The others struggled to say the name.

Drell rolled his eyes. "You can call her 'Kida' for short."

"Cool." The girls smiled.

"I never took you guys there?" Drell asked in surprise. "Huh... Could've sworn I did, but yeah, it's quite the experience."

"Cool." Hallie smiled.

Scooby soon sniffed about until he ran into some bones. "Mm... Yummy bones!" The cowardly Great Dane smiled.

"Scooby, I think those bones are taken." Domino replied as he spotted a skeleton.

Scooby soon saw the skeleton and got scared.

"Ugh, a skeleton!" Little Dipper groaned in fear and disgust.

"I think we found where Nessie leaves her leftovers." Drell said.

Cherry shivered and hid behind him nervously.

"Uh... Ahem..." Drell glanced at her.

"Sorry..." Cherry smiled nervously.

"Anyway, she's not here." Drell said.

"Are you sure?" Patch asked.

"Yep." Drell nodded.

"So, um, Nessie eats people?" Cherry gulped nervously.

"She sure does." Drell said.

Cherry looked a little nervous now about meeting the Loch Ness Monster up close now.

"Scoob, you okay?" Shaggy called out as he came to his shivering best friend and then saw the skeletons. "Oh, man! You guys might wanna check this out!"

"What's wrong, Cherry?" Drell smirked to the perky goth. "I thought you loved death~"

"Not when it's coming." Cherry gulped.

"I think we stumbled across a burial ground used by Ancient Scottish warriors." Velma told the others.

"You think Princess Merida of the DunBroch clan is around here somewhere?" Hallie pondered.

"Maybe." Annie said.

"You guys know Princess Merida?" Velma asked the long-lost twins.

"She's our ancestor on our grandmother's side," Hallie replied. "He told us all about her."

"Yeah... I wish I could be as brave as her..." Annie sighed. "Chessy says I'm a bit of a coward."

"Don't worry, I'm sure your courage will come in." Atticus assured her.

Annie sighed as she wasn't too sure about that.

"I wonder..." Michelle spoke up. "If they bury the dead down here, that means there has to be a secret entrance up to the surface."

"That does sound possible." Daphne had to admit and agree with the woman.

"I think Shaggy and Scooby are trying to become warriors." Darla giggled as she saw the cowardly duo dress up in suits of armor.

"What?" Cherry asked before looking. "Oh, my God..." she then grumbled slightly.

Shaggy and Scooby clashed their swords together before laughing to each other.

"Hey, guys, I found something..." Bud said as he knelt down. "It seems to be a Philip's Master-Meister Tool Wizard."

"ENGLISH!" Cherry called back.

"It's a screwdriver." Bud told his daughter.

"Why would there be a screwdriver here?" Scrappy asked.

"Maybe they were handy Ancient People?" Bud smiled innocently.

Cherry had a sharp glare and face-palmed from her father's childishness.

"What?" Bud shrugged innocently.

"Does anyone think it just got slightly darker?" Annie asked.

"Drell, are you standing right behind me?" Cherry asked nervously.

"No, Cherry, I'm right here." Drell replied as he was sitting in a corner.

"Then why do I feel scared to death right now?" Cherry's eyes widened.

Drell looked over and looked back calmly before he did a double take. "Okay, um, Cherry, don't scream, but there's a monster right behind you, about to eat you."

Atticus soon looked behind them and used his X-Ray vision to see if it was the real one.

"Jinkies!" Velma cried out.

"Get to the submarine!" Fred told the others.

"I-Is that the real one?" Cherry asked her best friend.

"Hmm..." Atticus looked suspicious.

"Come on, you two!" Fred called out to Cherry and Atticus.

Cherry soon began to zip off as she didn't want to take any chances.

"Are you the real Nessie?" Atticus asked the monster.

"What of it, eh?" The monster replied in a heavy female Scottish accent.

"It is you!" Atticus replied before glaring. "You've been scaring people off!...Though some other people have been impersonating you."

"What?!" Nessie glared back. "I haven't scared anyone at all, I've just been minding me own business."

"I guess you are the real Loch Ness Monster..." Atticus replied.

"What's this about people bein' me?" Nessie still glared.

"Well, someone has anyway..." Atticus shrugged. "We were out in the water and I thought I was fighting you, but it was someone pretending to be you."

"That would explain the imposter that was following me, now if you don't want to be stuck here you'd all best get out." Nessie said.

"All right, Nessie, you be careful then." Atticus told the sea monster.

"Don't worry about me, laddie," Nessie replied. "I've been fine for thousands of years, but I suggest ye get goin' yerself."

Atticus bowed to her and soon went off with the others. Nessie soon helped the cowardly duo to the mini sub before her picture was taken.

"Thanks, Nessie." Atticus smiled to the Loch Ness Monster.

"Ah, ye seem like a nice enough laddie, I guess I can let ye go off easily," Nessie replied. "Just watch out for Kraken, ye can't be too careful with him, he can be quite unpredictable, just ask those who lived during the clash of the titans."

"Yikes!" Atticus said.

Nessie soon went under the water, splashing Atticus slightly, but of course, it didn't bother him.

Once everyone was back in the mini sub, they made their way back to the ship.

"Okay, are we all here?" Michelle asked as she did a head count.

"Aye, we are, Mrs. B," Atticus replied like a pirate again which annoyed Cherry. "Prepare to board above the briny surface!"

"Please stop!" Cherry begged.

"Killjoy..." Atticus pouted. "At least you got to go to Treasure Island with the Muppets."

"Whatever." Cherry said.

"Is that everyone?" Michelle asked worriedly. "I feel like we're missing someone."

"All of us are here, Mom." Cherry said.

"All right, let's go then." Michelle replied.

Atticus then took them back up to the surface, and where they didn't have any bumps in the road.

"So far so good." Little Dipper told the others.

"Yeah, there's nothing standing in our way." Patch added.

Atticus stuck his tongue out as he soon drove them upward and out of the water, and where they got a boost from the real Nessie as she spotted the fake Nessie.

"That went well." Atticus smiled.

"Hmm..." Little Dipper pondered. "Seems like a force brought us faster."

"Wow, Little Dipper, that's quite a smart observation." Patch smiled to his nephew.

"I think Nessie might have given us a hand." Atticus smiled.

"Ye met the monster?!" Shannon asked.

"She's really nice once you get to know her," Atticus smiled innocently. "Plus, I got a knack for talking to sea creatures like my mother."

"That's amazing." Shannon smiled back.

"It's a living." Atticus replied.

They soon got out of the mini sub once they were above the ocean.

"We better get some sleep," Annie said as it was dark outside. "That was quite the adventure."

"It's not over yet, Ann," Hallie told her twin sister. "It's just begun."

"Totally!" Domino beamed and smiled with Hallie while Annie looked a little disappointed.

"Yeah, like, I'd hate to be tired and cranky during the monster's rampage." Shaggy commented.

They soon heard someone snoring. Cherry and Michelle looked over to Bud, but he was wide awake.

Little Dipper followed his ears as he soon came to the van where the snoring was coming from. "It's coming from here." He pointed.

Atticus opened up the van doors and he saw that it was Del and he was fast asleep.

"Del?" Fred asked out of surprise.

"Is he sleeping on your sweater, Velma?" Scrappy asked after seeing what Del was sleeping on.

"Huh? What?" Del snorted before waking up and smiled as he sat up to see the others as he adjusted his glasses. "Uh, hey, guys! Sorry, ya know, I was down here at the castle trying to connect with Nessie's energy, and somebody ripped off my van, man!"

"That's strange." Patch said.

"Someone stole your van?" Velma asked.

"Blake Castle..." Shannon added.

"Like, whoa!" Shaggy gasped. "And it seemed like such a good neighborhood."

"Let's get going." Annie said.

"Time for bed." Cherry said before walking off before Drell grabbed her back.

"I don't think now is the time." Drell replied.

"You're right," Velma agreed. "There's still work to be done."

"Let's hit the road." Patch said.

"I guess we're not going to bed now." Annie frowned worriedly as she hugged Domino as they soon drove off.