Into the Bunker - A Gravity Falls Fanfiction...

A/N - Well here is chapter fifteen! Wow over 70 reviews! Thanks so much you guys! :) Anyway I'm really sad to say this but this is the last chapter for this story. Do not worry though there will be a sequel at some point after December, I'm not sure when but there will be! :) So thanks to everyone who's read and reviewed and thanks to Alex Hirsch for making this AMAZING show which I don't own. But yeah, ENJOY the last chapter :)

Chapter 15

Previously on Gravity Falls...

As soon as Wendy, Soos, and Stan were all on Dipper's back, he leaped into the air and began to fly to Bill's lair. But when they left, none of them noticed that someone had been watching the whole time...

Back on the ground the person behind the bushes frowned as they watched the three friends fly off with the dragon. As soon as they were gone the figure turned around and suddenly smiled. This person suddenly smiled because they knew that part of their plan was working. So, that was when they pulled out their cell phone and began to dile a number they knew very well and waited for the other line to pick up. The only reason this figure was calling someone was to warn them what they

"Hello?" A voice finally answered on the other line. "This better be good, I'm in the middle of something." The voice said with annoyance.

"This is important!" The figure stated with a sigh. "We have a code red man!" The figure explained.

"Code red? What are you talking about!?" The voice asked with interest and worry.

"The dragon kid flew off with three of his friends towards Bill's lair!" The figure explained as fast as he could.

"WHAT!?" The voice on the other end screamed. "THIS WAS NOT PART OF THE PLAN!" The voice cried out as he slapped himself.

"I know, I know, but what are we suppose to do about it!?" The figure asked with worry.

"Meet me at the lair as soon as possible, I will send out my friends to distract them from getting here." The voice replied.

"Good." Our figure replied with a smile. "Remember make them hurt!"

"No problem, and don't forget we need Bill for this, so figure out how to get him there and after that we just need the journals." The voice finished explaining.

"Of course, but Bill will have to wait, he's having a little meeting - " The figure explained with a huge grin on their face...

"Waite, so if Preston Northwest is the author of the books, and your step father why do you still want to destroy him?" Mabel asked with confusion still.

"Because, he's a bad man Shooting Star, to me, and to Gravity Falls." Bill explained in a way so Mabel would understand easier.

"I understand that but just because he's a bad man doesn't mean he should still be destroyed, he is a person and has a family." Mabel tried to reason.

"Really Shooting Star? Really?" Bill asked with annoyance. "You're defending a man who's the father of your biggest rivel?" Bill asked with confusion this time.

"Just because I don't like them doesn't mean I want them gone." Mabel explained with a look. "Beside's, what good would that do anyway?" Mabel asked with a shrug.

"So much good that you would not understand!" Bill replied instantly making Mabel jump at his tone of voice. "He's the reason for EVERYTHING!" Bill added.

"Like what?" Mabel asked again in protest.

"Your brother being turned into a dragon for example." Bill said suddenly making Mabel's mouth drop in shock.

"W-what?" Mabel asked in confusion.

"Oh yeah." Bill answered with happiness in his voice. "And your uncle's twin brother going missing." Bill added. "Also, turning me into what I am today; and making Old Man McGucket crazier then ever as you saw on his memories." Bill finished with a narrowed eye as he floated closer to Mabel once more. "Don't you see Shooting Star? Preston Northwest is the reason for everything that has happened in this town." Bill explained. "It all add's up now doesn't it kid?" Bill asked.

"B-But that doesn't explain the truth about the journals and why he wrote them or why he hid them!" Mabel protested once more, she really didn't want to believe it.

"He hid them because it ruined his life to much." Bill began once more. "He got obsessed with finding the secrets of this town that he didn't realize how much danger he was causing everyone else around." Bill added with sadness. "That's why he his the book's, to stop himself from harming other's. Of course though in my book that was too late, and it all would have worked and this town would still be hidden if your brother hadn't found book three!" Bill explained.

"Hey! Don't try to blame this on Dipper!" Mabel stated instantly. "It's not his fault he's always curious." Mabel explained instantly.

"Yes, but it is his fault that he found out the truth about the journals and Gideon." Bill added instantly regretting what he said.

"Gideon?" Mabel asked suddenly. "What does Gideon have to do with this?" Mabel asked with confusion once more. "He's been helping us recently." Mabel added.

"Gideon is working for Preston and I and I have tried to convince him not to work for Preston." Bill explained.

"Well, now this is starting to explain a lot." Mabel muttered to herself in annoyance. "Alright fine! Let's say I believe you - " Mabel began as Bill cut her off.

"Of good Shoo - " Bill began as Mabel cut him off.

"But, if I'm going to help you, I get to make the deal this time instead of you." Mabel explained as Bill laughed and floated backwards for a moment.

"In you're dreams kid!" Bill stated as he laughed.

"Fine then I guess I won't help you at all and - " Mabel began as Bill cut her off.

"Okay, okay, fine, what did you have in mind?" Bill asked as he watched Mabel grin.

"Glade you asked..." Mabel began with a smile as she looked up at Bill once more...

Wendy, Soos, and Stan held onto Dipper the dragon as best as they could as they soared through the air towards Bill's lair. So, as Dipper flapped his wings he made sure to keep his friends on his back so neither one of them would fall off. However as he turned the corner's he realized how sharp he turned and worried for his friends and uncle's safety. Still, that didn't stop him from getting to their destination and finally getting a chance to defeat Bill once and for all.

By the time they finally arrived to the spot where Bill's lair was, the sun was setting in the horizon and the three friends and one dragon could see dark clouds coming in closer and closer to where they were. However, they landed and as soon as Dipper landed softly and laid on the dirt cave floor, he allowed his friends and uncle to slip off his back and onto the ground. The three humans began to look around the cave that was high in the mountains hoping this was the right place.

"Are you sure this is the right place?" Wendy asked with hope as Dipper nodded and huffed with annoyance. "Okay, okay I just wanted to make sure." She added.

After she finished talking they went back to looking around the cave for any clues on where Bill possible was in that cave. Besides, he had to come out sometime right?

"Hello!?" Soos called making everyone turn to him. "IS ANYONE HERE!?" Soos yelled once more trying to see if anyone was around.

"Well, well, well, if it isn't the Pines and friends..." A voice said coming into the light.

Everyone stood in shock as Preston Northwest came into view with an evil smile on his face...

A/N - Well there was chapter fifteen the final chapter for this story! CLIFFY! Once more thanks so much for reading and please remember to REVIEW! :) The next story of this installment series will be up mostly after December. I just need a break from GF that's all. Anyway thanks once more for reading and for everyone who's reviews and followed through this whole thing even if it didn't make sense half the time! So yeah, thanks :) Anyway until the next sequal, please remember to REVIEW! :) - DisneyChannelLover