Authors note: So here's a new chapter that took a little longer for me to come up with, mostly because I thought of using a few different Kajiu for this story that I thought would be interesting to see. They're not from the movies but they're from the Godzilla comics instead and I thought they would be an interesting addition to the story so I thought, let's put them in here. Aside from the new Kajiu, I hope you guys enjoy the new chapter.

Chapter 9: Ancient Threats

O-O-O

After a good night's rest from yesterday, the twins couldn't help but feel a bit scared and suspicious about last night. The tremors were certainly the last thing anyone would have expected to end the day with, and the twins weren't alone on this, Stan and the fairies knew since they were there with them, and Dipper called Wendy ahead of time last night to see if she was okay and that she told him about feeling the rumbling tremors. It was a scary thing to experience since back at California the twins had their fair share of earthquakes, they could never get used to the earth shaking like that, but these tremors felt off, because the pattern they went in was erratic, one moment there was rumbling and then the next it was gone, only for rumbling to occur again.

Being the early bird he always is, Dipper was the first to wake up in the morning and decided he would ask the fairies, they would know, so as he got up to stretch his arms, he looked out his window to see a reptilian eye stare at him through the window, which shocked Dipper and made him fall off the bed, making his sister jump up awake and her pig squeal and jump onto the floor.

"Man the walls!" Exclaimed Mabel, just waking up from her dream.

Mabel then looked at the floor to see Dipper covering his knee in pain, with a frightful look on his face.

"The window." Said Dipper, making Mabel look at the window to see the reptilian eye stare inside, almost making her fall off as well.

"Sweet Sally!" Exclaimed Mabel, not expecting the reptile eye.

The eye then backed off to show that it was none other than Godzilla, who had appeared to grow even larger than before, and could even hear Mothra chirp at the Big G, as he stepped away from the window.

"Dipper? Are you oaky?" Asked Mabel, as Dipper winced a little as he got up, his knee still hurting from falling down but was able to stand up.

"I'm fine, just found my new nightmare for the day. That's all." Said Dipper, still shaken up from the sight of the eye, as he looked out the window to see Godzilla's massive height change as the dinosaur bended upward to stay upright to show his massive growth of forty meters, while looking at Mothra who has also grown to forty meters as well, and the twins could safely tell the size difference since the two Kajiu were far enough to the edge of the woods so the Kajiu wouldn't accidently step on the Shack.

"How old are they again? Three days?" Asked Mabel, in disbelief at what she was seeing right now. "Because that doesn't look like three days to me."

Dipper just shook his head, still in shock at the sight he was seeing, especially in Godzilla since he was starting to look a bit different now.

While Mothra still had the same features and only a size difference, Godzilla was starting to look more ferocious and intimidating, not really as cute as he used to be. His face's cute features such as big eyes and small teeth were gone, replaced with a menacing glare from his more reptilian eyes and sharper rows of teeth, his scales were even more rough and bumpy, along with the charcoal coloration being darker than before, his bone plates on his back were starting to grow more outward, the center row being the furthest out while the other two rows on the left and right were shorter, needless to say, Godzilla was growing up.

"Look at him." Said Dipper, staring right at Godzilla. "He looks so… different."

"And scary." Said Mabel, looking at Godzilla with the same expression as her brother before trying to break the tension. "Good thing he's on our side, huh?"

"Yeah… our side." Said Dipper softly, shaking his head to break himself out of his trance. "We should probably get dressed."

Mabel nodded in agreement with her brother and got dressed for the day, with Mabel's new sweater of the day being a green sweater with a caterpillar that looks similar to Mothra as the twins went downstairs to prepare for the day, and went downstairs to the kitchen to see Grunkle Stan just finishing with making omelet for each of the twins, and the fairies standing in the middle of the kitchen table.

"Morning Grunkle Stan." Greeted Mabel, while Dipper tipped his hat to greet Stan.

"Morning munchkins." Greeted Stan, as he put the omelets in two plates for the twins and set them down on the table. "Breakfast is served."

"Wow Stan, you actually made something edible." Said Dipper, surprised at the delicious smell of the omelet as the twins sat down at the table. "I thought you forgot breakfast last night."

"Of course not, I just got a little help from Lora and Moll and presto, Stan's omelet recipe is a success." Said Stan, as the fairies looked at the twins.

"And when he says a little, he meant we made it." Said the fairies. "He tried making it himself before and got, undesirable results."

"Is that why there's a black thing on the ceiling?" Asked Mabel, pointing up to see burnt omelet sticking on the ceiling above Stan.

"I knew it was too good to be true." Said Dipper, as he began eating the omelet with his sister.

"Sure, maybe my cooking skills could still use some work, but at least I tried." Said Stan, trying to defend his poor cooking skills. "It's better than wasting money for food when you can make the same thing for free."

Dipper just rolled his eyes at Stan's cheapness, knowing that even with giant Kajiu living in Gravity Falls, he would still try to be as cheap as possible.

"So uh, Lora. Moll. You know what happened last night with all the tremors stuff?" Asked Dipper, wondering what the so called tremors were about last night.

"It is possible that they are more Kajiu awakening from the cave." Answered the fairies.

"Oh great, all we need are more of those things." Grumbled Stan. "They'll drive me out of business at this rate."

"They're not like, all nasty like the ones from yesterday right?" Asked Mabel, not wanting to fight more Kajiu. "I prefer making friends than enemies."

"It depends on which one you're talking about, but they are all like wild animals, only that they're smarter than ordinary ones." Said the fairies.

"Well, do you know them all? You've been in that cave for eighteen years after all." Said Dipper, wanting to know any info about the Kajiu.

"Aside from your Kajiu, Ganimes and the Meganulon that you already know enough about for yourselves, there are more that are important to know about." Said the fairies, as they began to briefly talk about each one. "There is giant rock turtle known as Kamoebas, he's docile so don't worry about him, there's also other giant bugs such as Kamacuras, giant mantis that you might have encountered in the cave before."

"Of course, I just love remembering how close I was to becoming bug chow." Said Dipper, remembering his near death encounter with Kamacuras.

"Good thing that giant spider saved you, or I would have had to dive inside that thing to save you." Said Mabel.

"That's Kumonga. He keeps the Kamacuras population under control, but don't expect him to be too friendly to you either." Continued the fairies. "There are other Kajiu such as the giant lizards Baragon and Varan, but they prefer to stay away from humans so they might not come here."

"Might?" Asked Dipper worryingly.

"Sometimes they do if they're forced, but they won't attack humans unless provoked." Continued the fairies, assuring Dipper that they are not hostile monsters. "Then there are the more aquatic Kajiu that live deeper in the cave such as Titanosaurus, a prehistoric dinosaur that prefers slumber over anything else and will react violently if woken."

"So if we see a giant dinosaur sleeping underwater, don't wake it up." Said Dipper, wanting to have some sort of a plan for some of the Kajiu.

"There is also the giant lobster Ebirah, but he would prefer shallow saltwater in the ocean, the giant squid Gezora will want to live in deep waters so he won't come here at all, and the last is the sea serpent Manda, who is the most docile water Kajiu, but like all wild beasts, they will attack if provoked." Said the Fairies, as they finished their little Kajiu list.

"Is that all of them? Because they all sound pretty terrifying." Said Dipper, wanting to know if there is more.

"There is a few more that you should be mindful about who are the more aggressive Kajiu such as Megaguirus, the queen of the Meganulon, she slumbers in a cocoon that has never hatched since she was enveloped in, but with her Meganulon roaming the surface world, that may not be the case any longer." Warned the fairies. "There are also two Kajiu who are both called Shinomura, ancient parasites that constantly feed on organic life and the last Kajiu is the most vicious of them all, Bagorah, a giant bat like creature that shares a similar goal with the Shinomura."

"The last ones sound like the worst ones." Said Dipper, concerned about Megaguirus, Bagorah, and Shinomura. "They better stay in that cave."

"That we do not know, they are still wild animals in the end so we cannot predict what they will do." Said the fairies, as the twins finished their omelet. "But we know that they will awaken soon."

"When they do wake up, we'll be ready." Said Dipper confidently. "Because we have something they don't."

"An awesome team of Kajiu butt kickers." Said Mabel, high fiving her brother in agreement.

Stan just shook his head at the twins. "I'll never understand kids these days, wanting to get involved with giant monsters."

"It's the new fad, Stan." Said Dipper, which made a lightbulb go off in Stan's head.

"A new fad! Kid, you really are a genius." Said Stan, as he walked away to go upstairs.

"Grunkle Stan?" Called out Mabel. "What are you doing?"

But Stan already went upstairs, confusing everyone at the table as the twins cleaned up after themselves to get ready for the day.

O-O-O

The twins were now outside with their now forty meter Kajiu, waiting for their friends since they had to work overtime this week, and looked up in the air to see Rodan flying towards them, who had also grown as much as Godzilla and Mothra to forty meters along with having a larger wingspan, while Anguirus who also grew to forty meters was seen rolling towards the twins as well and it looked like his spikes were growing longer and sharper as well, with both Kajiu stopping close by Godzilla and Mothra, the twins could see Soos's truck following close by as he parked and greeted the twins.

"Sup dudes?" Greeted Soos, while the twins could see Wendy at all, making Dipper turn to Rodan

"Uh Rodan? Where's Wendy?" Asked Dipper.

"Right here, dork!" Shouted the red head, whose voice came from behind Rodan, as she walked over to the rest of the group dizzily and almost fell down, until Dipper caught her in his arms.

"Wendy?"

"Oh my god!" Exclaimed Wendy, as she began laughing suddenly. "I'm never using my bike again."

Wendy just continued laughing, so much that she began coughing while Dipper just patted her back. "Breath Wendy."

Wendy then calmed herself down, taking a few deep breaths and stopped laughing, but still felt dizzy and held onto Dipper, making the boy blush without her seeing it, while Rodan noticed the blush and gave Dipper a mean glare, making the blush go away as soon as it came.

"I just thought today I should come to work in style, and seeing as I have a giant Pteranodon with me, I decided screw it! Let's fly." Said Wendy excitingly, as she let go of Dipper and managed to keep her balance. "And it was like, the scariest and most awesome thing I have ever done in my entire life."

"Wow dude, now that's hardcore." Said Soos, as he nodded at Wendy. "My respect for you has just doubled."

Rodan just squawked proudly, glad that he is able to impress the humans with his flying skills while Godzilla just snorted at the notion, not at all impressed with Rodan as Stan came out wearing his usual suit for work, and was carrying a wooden sign he made and nailed it at the front of the shack for everyone to see.

"Soos. Just in time. I need you to put up some new signs and banners before the tourists get here." Said Stan pointing inside the Shack. "The rest are inside."

The rest of the group then read the sign that said, "Newest Mystery Attractions! Titans of Old! Rides for Twenty Dollars!"

"You can't be serious." Said Dipper in disbelief. "Rides?"

"I'm a true business man Dipper, I can put my dislike of Kajiu aside if it involves racking in tons of cash." Said Stan, glad to find some kind of value for having Kajiu around. "It's either that, or they leave."

"You can't expect tourists to keep their mouths shut about giant monsters." Argued Dipper. "What if the wrong people find out about them? Like the government?"

"Or P.E.T.A?" Warned Mabel. "They're not as nice as you think."

"Easy, the kids will think they're real but their parents will think they're animatronics. Kids love dinosaurs and maybe giant caterpillars, it's foolproof and no one will even bother to check." Said Stan. "If there's anyone dumber than anyone living in this town, besides me and anyone working for me of course, its tourists."

The rest of the group didn't exactly agree with Stan's methods, on one hand, it gave the twins a reason to keep their Kajiu around the Shack instead of kicking them out to the woods, on the other hand, making their Kajiu into attractions instead of guardians was not really the best thing to do, but this was Stanford Pines they were talking about, he wouldn't pass up on a chance to make cash unless it was serious, and so far their Kajiu were playing nice.

"The rest of you help out Soos. The buses won't be here until nine but they'll be coming in droves when they see this." Said Stan, as he went inside the Shack. "We're gonna bleed them dry!"

Dipper just shook his head at Stan, as he looked at the Kajiu who heard the conversation and didn't look too happy about it, especially Godzilla.

"Not the nicest guy in the world, I know. But he'll warm up to you." Said Dipper to Godzilla, while Godzilla just growled.

"We can still hang out with you guys, just move stiffly and open your mouths a lot and you'll be fine." Said Mabel to the Kajiu.

Mothra chirped in agreement and Anguirus roared with Mothra, but Godzilla and Rodan didn't really think too highly of the scam, they wanted to roam around with their human friends, claim territory, eat whatever they wanted, and show off their power against each other, and not stand around to entertain kids that they had no desire to be around with.

"Don't worry about, you guys will love it." Lied Dipper. "Just, don't fry anyone with your atomic breath, giving people radiation poisoning isn't very guardian monster material."

Godzilla growled lowly in agreement as the humans went inside to set up the banners and signs for the new "attraction."

"Now I kinda wish another Kajiu attack happened." Said Wendy, as the group went in the Shack, silently agreeing with Wendy.

Godzilla didn't like being called that, guardian monster, he felt like it didn't fit him too well. He didn't mind humans, mostly since he knows not all are bad such as Dipper who helped save him in the cave, and his friends seemed nice enough as well, but he didn't really care to much about them. He wanted to roam the Earth and do what he naturally does since he was still an animal, a very smart animal but still an animal, responsibilities of an earth guardian didn't suit his needs or wants.

Mothra was mixed on the situation, she didn't like the fact that Stan was going to scam people out of their cash to satisfy their dull minds, but she would make people happy by doing this so it was good enough for her.

Rodan felt the same way as Godzilla, though he wouldn't have minded the scam if it allowed him to show off his flying tricks to impress the masses and prove he was better than Godzilla, in fact, maybe he would plan to do so, Wendy never told him to not fly around and if Stan was right about the tourists, he could fly as much as he pleased.

Anguirus did it so he wouldn't destroy his loyalty to his friends, if it meant making himself into a side show attraction to keep his loyalty intact, he would do it.

Though despite the whole scam situation, the Kajiu wished that something interesting could happen today.

O-O-O

Meanwhile at the cave on the outskirts, unknown to the citizens of Gravity Falls, two Blackhawk helicopters with the acronym "EDF" on their sides approached the cave from the air, each carrying a squad of 12 soldiers ready to go inside the cave to investigate possible threats of Kajiu in a covert ops mission.

But they were no ordinary soldiers, they were equipped with black carapace armor covering their torso, elbows, knees, and even their helmets were made with the special armor, while their uniforms were colored in a dark blue camo and had a special badge stitched on their right shoulders of their uniform that said "Earth Defense Force" with the badge being the shape of the planet Earth. Their weapons were not ordinary, since they were equipped with some kind of assault rifles and two soldiers in each squad were equipped with heavy rifles that took the same ammo.

While the helicopters were descending to their destination, the sergeant of one of the squads began a short briefing.

"Listen up men! We're gonna make this quick today! Our mission is to investigate this cave for possible Kajiu presence after an incident involving a possible sighting of a Kajiu, codename Kamacuras! We go in this cave, search the entire cave, and report back to HQ as soon as possible! Anything that ain't human, you shoot it if it comes at you, and don't worry about not having any extra, our new Gausses rifles should do the trick, and we're only here to investigate, not exterminate! This isn't Godzilla we're talking about!" Said the Sargent, as the helicopters were now above their destination. "Let's drop!"

The two quads of soldiers then prepared to rappel down to the ground, armed with Gausses weaponry and advanced combat armor, ready to take on any possible threats of Kajiu presence they had, and proceeded to go inside the massive cave and equip their night vision goggles to see through the darkness of the cave and investigate the cave.

"I can't believe they're back. After this whole time." Said one soldier, making small talk to his fellow squad mate. "I thought they all disappeared in 96'?"

"Disappeared, not dead. They could come back at any time and they chose now. That's why they didn't disband us yet." Said the fellow squad mate. "At least we don't have to deal with Godzilla anymore."

"He disappeared too. Maybe he's down here waiting for us?" Said the first soldier.

"If it was Godzilla, there wouldn't even be a cave anymore." Said the second soldier.

As the soldiers descended deeper into the cave, passing the deep pit and looking around every possible direction any Kajiu could be, the soldiers were starting to have doubts about the Kajiu.

"Is command right about the seismic activity? Because I don't see any sign of Kajiu around." Said the first soldier, not having any luck finding any Kajiu.

"Better than sitting on our asses." Said the second soldier. "I prefer going in a scary cave than the firing range."

"But there's nothing-

"KKKREEEEEE!"

The soldiers stopped in place when they heard the monstrous sound, looking forward to hear the echoed sound coming at front, aiming their Gausses weapons as they heard two more monstrous sounds.

"SKREEECH!"

"SKRAAAAA!"

The sounds echoed as well, sending shivers down the EDF soldier's spines as they heard the sounds getting closer, readying defensive positons to face the possible Kajiu threat.

"You had to open your big mouth." Said the second soldier, before the same sounds echoed even closer.

Then a pair of monstrous 30 meter Kajiu appeared in front, both Kajiu were massive winged dragon-like monsters with blue scales and black wings, but looked more similar to scorpions and had multiple glowing white eyes and had long tails that made up half of their bodies, while the soldiers did not have a name for these beasts, the fairies knew them as the Shinomura.

But the surprise was not over, since the Shinomura were flying away from a much larger predator chasing after them, who looked to be about sixty five meters and had the appearance of a giant bat like creature, colored in a dark red and had sharp talons and teeth, ready to use them to tear into its Shinomura prey until it spotted the humans in the distance, picking up their erratic heartbeats with its large ears and sensitive hearing, ignoring the Shinomura prey as they flew into the large pit behind the EDF soldiers to flee from their predator, who had set its sights on the humans, this vicious predator is Bagorah.

"Run!" Ordered the Sargent, not expecting the Kajiu living inside the cave to be so big, as Bagorah picked up the fleeing footsteps of the humans.

Not wanting to let his prey flee so easily, Bagorah began to emit a high frequency sound wave at the direction of the humans, making them stop in their tracks and cover their ears in pain, the wave damaged their hearing and even caused the cave to rumble from the wave's intense frequency, giving the Kajiu the perfect opportunity to strike down the humans as it flew towards the downed humans, as the Sargent began to radio in HQ despite his damaged hearing.

"We have confirmed contact! I repeat, we-

But the transmission was interrupted when Bagorah landed right in front of the Sargent and chomped his upper body off before he could even blink, as the surrounding soldiers picked up their Gausses weapons and opened fire on the Kajiu, who didn't even flinch from the effect of the Gausses weapons.

Bagorah screeched at the puny humans, emitting another sound wave at the soldiers that was powerful enough to send them flying into the pit behind them, making the soldiers fall into their doom except for one unfortunate soul who was only inches away from falling. The soldier got up in a panic, quickly grabbing his heavy Gausses rifle as Bagorah consumed the other half of the Sargent's body, at the soldier shot the giant bat creature with every shot he had but to no avail, as Bagorah just screeched at the soldier's pitiful attempt of attacking him.

The soldier only had one final plan, when Bagorah was above the human, ready to chomp down on his flesh, the soldier grabbed a grenade from his waist belt and threw it close to the giant bat's head, managing to get it inside the creature's ear and explode, disorientating its main sense as it screeched in pain.

"SCREEEEEECH!"

Bagorah quickly flew ahead of the lucky human and down into the pit, finding the human not worth consuming as it went down the dark hole to feast on the rest of the humans that had fallen below, as the soldier got up and panted heavily from the adrenaline and near death experience. The soldier then picked up his CB radio and called in HQ.

"This is Private Stevenson, we have confirmed Kajiu contacts in the cave, I repeat, Kajiu contact has been confirmed."

O-O-O

Disclaimer: I do not own Gravity Falls or Godzilla.