They soon climbed down, coming down very steep steps on the way down to the lower cavern. Shaggy soon broke off one of the sharper crystals and put it in his pocket to use as a weapon for later.

"Okay, calm down, Eddy, there's nothing to worry about." Eddy told himself.

"Boo." Lucy said, coming to him.

Eddy screamed and jumped into Luna's arms in fright.

"Lucy, this isn't the time for that." Luna told her younger sister.

"Sigh..." Lucy sighed to herself.

Luna looked at Eddy who was in her arms, he grinned sheepishly to her.

"Hi." Eddy grinned.

Luna soon put Eddy down on the ground. "Come on, we better keep up."

"Say, is there any chance I can borrow your brother for-" Eddy began to ask.

"No." Luna replied.

"But you didn't even hear what I was gonna say." Eddy said to her.

"I know what you're gonna say and the answer is no," Luna glared. "You are not gonna use my little brother for a scam."

Eddy was about to say something.

"Yes, you would do that," Luna said. "You're always trying to use get rich quick schemes. I'm sorry, Eddy, but you're not using Lincoln like that."

"But..." Eddy frowned.

Luna glared at him with her eyes glowing green.

"On second thought, maybe it was a bad idea." Eddy grinned nervously.

"Ya think?!" Luna deadpanned. "How does Mike put up with you?"

"Because we're friends." Eddy replied.

Luna just rolled her eyes. They soon followed Shaggy through the dark cavern together.

Shaggy soon stopped them from walking once he came to an end. The ground was littered with slithering snake.

"Gross!" Lola complained.

"I like it," Lana smiled. "It must be El Diablo's friends and family."

"Whatever!" Lola complained.

"Snakes! Ooh, ooh, do not like!" Velma groaned.

"The snakes stay down there," Professor Svankmajer informed. "We just have to find a way to get across."

Shaggy looked up of the ceiling only to find a bunch of bats screeching and everyone, except for Shaggy, Yumi, and Lucy ducked down.

"Oh, you poor thing, you must be scared to death." Lucy cooed to the bats.

Shaggy soon jumped against the cavern walls.

"Shaggy?!" Trent asked. "What're you doing?!"

"Saving your butt, McCord," Shaggy told him. "Get used to it."

"I don't think I like this Shaggy." Trent said to himself.

Shaggy kicked some rock platforms to the ground so everyone could get across without getting bitten from the snakes. "Come on, guys!" Shaggy told them.

"I guess we have no choice," Mike said to the others. "Let's go."

Shaggy kept kicking the rocks to the ground while everyone was jumping rock-to-rock.

"This is so easy!" Lynn smirked. "Hey, Lincoln, come on! You're way behind!"

"I'm going as fast as I can!" Lincoln told her.

"Well, you better hurry!" Lynn told him. "These things are going down fast!"

"Gee, thanks!" Lincoln deadpanned.

"Just givin' ya words of encouragement, Bro!" Lynn told him.

"Yeah, that's really helpful." Lincoln replied.

Velma seemed frozen on the spot.

"Velma!" Brenda cried out. "Oh, no!"

Velma looked around as she seemed to be stuck where she was. There was another high-pitched scream.

"Hey, Double D, you made it," Eddy said. "No need to scream."

"Wasn't me." Double D replied.

"It's Leni!" Lori yelped.

"Guys! I'm stuck!" Leni cried out.

"Leni, whatever you do, don't scream." Lisa warned.

"I think it's a little too late for that because I am freaking out!" Leni replied.

"Her Sonic Scream will cause the cavern to be worse." Lincoln said.

"That's right!" Lisa nodded.

Leni was still panicking and freaking out. One of the snakes crawled to her leg. Her eyes widened and she screamed, accidentally letting out her Sonic Scream.

"Leni, no!" The Loud family cried out, but it was too late.

Everyone covered their ears, especially Mike and Lynn.

"That's worse than a dog whistle!" Mike complained.

Luan soon stretched her arm out and grabbed a hold of Leni to bring her over to the others.

"Can you bring Velma here too?" Brianna asked hopefully.

Luan nodded as she soon did the same with Velma.

"Okay, let's keep moving since we're all here." Shaggy told the others before running off.

Everyone else followed him. As they were walking, Velma was still mad at Winsor, not talking to him.

"O-Okay, yes, I did try to get you to drop the investigation," Winsor soon confessed. "But I really do like you."

"I believe you, Winsor," Velma replied. "But maybe you could have told me the truth back when we WEREN'T ABOUT TO DIE!"

They stopped at the edge of the cliff with a river underneath it.

"Up there!" Professor Svankmajer called out to the others, pointing to the hole with a light.

"Where's that light coming from?" Lincoln wondered.

"It's moonlight," Lisa informed. "That's the other exit."

"All right, anyone who has a belt, strip it off," Shaggy instructed. "I'm gonna use them to swing across to there. From there, I can jump to there. Then I can climb up and out, find some rope, lower it down and haul you bums out. Done." he then snapped his fingers with a smirk.

The others began to feel annoyed with this brave new Shaggy.

"I don't think I like this new Shaggy." Brenda said to the rest of Mystery Inc.

Everyone else agreed.

"Maybe I need a partner for this," Shaggy suggested. "How abou you, little boy?"

"Erm, no thanks," Lincoln said. "I don't do dangerous stunts."

"Live a little, come on!" Shaggy told him as he took Lincoln's hand.

"This won't end well." Lincoln said to himself.

"Shaggy, if Lincoln gets hurt or have one scratch him; I will literally turn you into a human pretzel!" Lori threatened.

"I'm willing to take that chance." Shaggy replied as he walked off with Lincoln.

Brenda still felt unsure about Shaggy acting this way.

"Linky is going to get hurt!" Leni cried out. "One of should've gone with him!"

"You girls worry way too much!" Shaggy told them. "Your brother is in good hands as long as he's with me."

The Loud House sisters looked at each other and looked over at their brother. Lincoln was soon with Shaggy as they kept going. Brenda just pouted as this wasn't the Shaggy she knew and loved.

"Shaggy, I know we don't know each other well, but are you sure about this?" Lincoln asked.

"Don't worry, little buddy, I could do this in my sleep." Shaggy smirked.

Lincoln bit his lip in worry and looked over at his sisters. "I hope so."

Everyone soon heard rumbling and explosions as Shaggy tied the belts together.

"What was that?!" Daphne yelped.

"I think another section of caverns collapsed," Professor Svankmajer told the others. "This whole area is becoming unstable. Shaggy, you'd better hurry."

"I was born hurried." Shaggy smirked.

"Is that part of the brave thing where you say weird stuff that sounds like movie lines?" Mike asked.

"Yes," Shaggy nodded. "Yes, it is, little lady."

"Well, alrighty, then." Mike shrugged.

"Watch and learn, little buddy," Shaggy told Lincoln as he tied the belt rope onto a root and looked all around before swinging across like it was a vine. He then ran across the walls and did a front flip and landed on the rock. "Your turn, buddy."

"I guess it shouldn't be too hard, right?" Lincoln sighed shakily, but he soon stretched before he went to take his turn, freaking out a little on the way, but he made it on the other side alright.

"See? He's okay." Lana smirked.

"Not bad, dude." Luna remarked.

That word triggered Shaggy, causing him to be his normal self again.

"Uh, Shaggy?" Lincoln blinked.

Shaggy looked around and soon bit his nails nervously. "Like, oh, no! I'm me again!"

"Hmm... Rad!" Scooby paused before smiling once he knew what Shaggy's keyword was now.

"What?" Leni asked.

"That's the keyword," Scooby replied. "Rad."

"Rad?" Velma said.

"No, rad." Scooby said.

"Sad?" Daphne asked.

"Dad?" Leni asked.

"Rad, rad, rad!" Scooby told them.

"Cad." Lori guessed.

"Tad?" Brenda asked.

"Pad?" Brianna asked.

"Chad?" Dee Dee asked.

"Amistad?" Cindy asked.

"Rad!" Scooby face-pawed to them.

"Shaggy, are you and Lincoln okay down there?" Fred called out.

"Kinda having some problems down here!" Lincoln called back.

"I can't do it! I'm supposed to jump to that ledge?" Shaggy added. "Maybe when I was brave, but now, no way."

"If you don't do it, we're all gonna die!" Fred told him. "No pressure."

"Look how far it is, Fred!" Shaggy panicked. "We're not gonna make it!"

"Linky is in trouble!" Leni panicked. "He's gonna get hurt!"

The caven gotten worse as more bombs exploded and the paintstripper was on fire.

"We don't have much time." Professor Svankmajer warned.

"Leni, maybe you're right," Lori soon said to her ditzy sister. "One of us should go down there and help them."

"I'll go." Luna and Lynn volunteered, then they looked to each other.

"Well, somebody go then!" Lori urged her siblings. "We don't have time to talk this over!"

"I'll go." Lynn said.

"Wait a minute, I should go." Luna replied.

"Ugh! Here's an easier choice: both of you go!" Lola said, pushing both of them off the cliff.

Some of the others looked to Lola.

"There," Lola smiled. "That should keep them busy and maybe they can put those new gifts into good use."

"Mom and Dad say I'm really gifted." Leni smiled randomly.

"Hang on, dudes!" Luna told the others before doing a battle cry. "WE BUILT THIS CITY ON ROCK & ROLL!"

"AND LYNN LOUD TAKES A DIVE!" Lynn added. "WILL SHE MAKE IT OR NOT?!"

Luna and Lynn landed next to their little brother.

"Welcome to the party, guys." Lincoln said.

"No need to worry, we're gonna get you dudes outta here." Luna told Shaggy and Lincoln.

"Besides, you made a bigger jump than that a few minutes ago." Lynn added to Shaggy.

"Whatever! That's when I was the other guy," Shaggy replied. "You know, the brave one."

"I don't know much about hypnosis, Shaggy, but I know one thing. It cannot make you do things you couldn't do without it," Lincoln advised the best that he could. "All that stuff you did when you were brave, that was you. It's inside you. You just have to let it out."

Shaggy nodded to that before saying, "Like, give me a movie line."

"...What?" Lynn blinked.

"I need one of those movie line thingies to say before I jump." Shaggy said.

"Uh, okay," Lincoln paused. "Uh, how about, 'When you say, 'Jump, ' I say, 'How high?'." he then suggested.

"Lincoln, that doesn't make any sense." Shaggy told the kid.

"Does it matter?" Lincoln shrugged.

"All right," Shaggy soon whimpered. "When I say jump, you say 'How high?'." With a leap, Shaggy yelped, but managed to get across.

"He did it!" Lincoln cheered.

"My turn," Lynn said. "You two, stand back."

Luna and Lincoln took a step back so their sister could have some room. Lynn did quick stretches and walked back at first before running to the end and soon jumped high in the air.

"Look at her go!" Lincoln gasped.

"Dude, I've never seen her jump that high in my life." Luna commented.

"Me neither." Lincoln added.

"Well, come on, we better go too," Luna said. "It shouldn't be too hard, Lincoln."

"Well... I... Um... You can go next, I'll follow you." Lincoln replied.

"How about this? Climb on my back." Luna suggested.

"Well, uh, if you really want me to, I guess I could." Lincoln smiled bashfully and soon did so.

"I'm used to carrying heavy equipment, how do you think I got around to my gigs before I met Chunk?" Luna smiled to him.

"I guess that's true," Lincoln replied. "I hope that Lynn doesn't make fun of me like always."

"If she does, I'm gonna give her a serious talking to." Luna rolled her eyes.

Lincoln and Luna soon joined together and they soon jumped next after Lynn and Shaggy.

"Well, you did it, Stinkon," Lynn said, holding on her fist which made him yelp, then she punched his arm. "Two for flinching."

Luna rolled her eyes from that.

The cavern was still coming apart as they all rushed before it would be too late. Everyone kept on climbing until they reached the light.

"We're almost there, dudes." Luna told the others.

It was getting more and more dangerous with each step and crawl.

"I can't watch!" Leni cried out.

Lincoln pulled himself up, after almost falling to his death.

They were almost about to fall until two hands grabbed them. "Gotcha!"

"Tex! Marcie!" Shaggy gasped.

The two bikers soon helped them all out of the hole and they were soon surrounded by the biker gang.

"They told me you got trapped in those caves and this was the only other exit." Marcie said to Shaggy.

"Well, we figured if anyone could find their way out, it'd be you," Tex added. We been camped out here all night.

"I made beans, if you want some." One of the other bikers offered.

"Hey, you guys have any rope?" Shaggy asked.

"But of course." Marcie smirked.

"Great. That way, we can pull our friends and family up and out," Luna said. "Lynn, we need some muscle. Think you can do it?"

"Heck yeah!" Lynn smirked.

Marcie soon got some rope for them to help the others out of the caverns which were slowly collapsing.

"All right, let's do it, guys!" Serena called out to the others.

Lincoln, Luna, and Lynn grabbed the ropes as well.

"All right, you guys, all together, and PULL!" Luna told them.

Tex soon rode off on his motorcycle with the rope to help pull the others out of the cavern in time.