"AHAHAHAHAHAHAHAHAHA!" Laughed Bill, clutching Mrs. Williams's face in his "hand". Dipper and Mabel were both taken by surprise. Even though Dipper had already made a sort of connection between Bill and Mrs. Williams, he didn't know that she was really Bill in disguise going after them.
Mabel was especially shocked. "Bill Cipher?! But.. But..."
"Yes, it's me!" Bill dropped Mrs. Williams's fake body, leaving him as the floating triangle he was. "You knew I'd get my revenge on you two someday, Dipper!"
"Well, how'd you track us down like that?" Dipper asked. "How do you know where we live and go to school and everything!"
"I took a little valuable something of yours when I took over your body!" Bill held up Dipper's Santa Barbara Elementary School ID Card. "And whaddaya know, now I know your real name is Douglas!"
"I prefer not to be called that."
"Whatever you say, kid. Now let's get back to business. GIVE ME THOSE BOOKS!" Bill turned orange to show increasing demand.
"No, I'm never going to let you have the journal of Stanley Pines! And you'll never find out where it is either!"
"Well I know you have it! Now I'm going to find it!" Bill quickly floated out the door of the classroom and darted down the hallway.
"C'mon Mabel, we have to stop him!" Dipper and Mabel ran after him. "He set up the ultimate trap for us! Now he's gonna find the books and we're doomed!"
"Well, I must admit, the mask thing was kinda cool." Mabel pointed out.
The two kept their eyes on the floating yellow triangle as they ran through the school hallway and down the staircase. They knew it would be easy for him to find the books, as all of the lockers had the students' names on them.
When they finally reached Dipper's locker, it was still closed and locked, and Bill wasn't there. "Good" said Dipper in relief, "he hasn't found it yet." he turned the wheel on the lock of his locker door and opened his locker. "Well, I guess I better- WHAT?" Dipper's backpack was open and the books were gone.
"Don't you remember?" said Mabel behind him, looking down. "Bill can pass through solids. It's too late"
"No it's not!" Dipper convinced her. "We will find the books and defeat Bill! He could be anywhere?" just then, someone tapped his shoulder. He looked behind him to see Bill carrying the books down the hallway. "That way!"
Bill tried to find a way out of the school in order to escape the two kids and finally keep the books forever. They chased him downstairs to the lower level, where he stopped at double doors which he assumed was the exit to give his final speech to them before he left. "You're too late!" he boasted. "These books are MINE! With these three books, I will unleash the power that lay inside them!"
Mabel realized what time it was. "Hey Bill, do you know what those doors lead to? The cafeteria. Do you know what time lunch ends?" Mabel pointed to the clock above the doors.
Bill saw that it was exactly 12:59:59 PM. A second later, a long, loud, and low buzz came on the loudspeakers in the hallway, and immediately he was crushed under the feet of hundreds of kids.
"Recess!" shouted Mabel as the crowd of children trampled Bill beneath their feet.
"Hey! Ow! Stop it! Ack!" he said as he kept getting stepped on. When all the kids had left the hall for the school playground, Bill lay flat on his face. However, the books were gone.
"Oh no!" said Dipper, noticing this. "Where did the books go?" he looked around trying to find them. They could have been crushed by the crowd, and that would be a huge problem for both Bill and the twins.
"Over here!" said Mabel, pointing to two of the books on the floor a few meters down the hall. As they ran up to it, they were unaware that Bill had gotten back up.
"You found them!" Dipper told Mabel. "But where is the third one."
"Looking for something?" said Bill behind them. The two turned to see that he had one of the books. "Now I demand the other two. Gimme!" Bill started to chase them again.
"We won't let Bill get away with his evil plan!" said Dipper as he ran. "We'll have to think of a way to get the one he has!"
Mabel took emphasis on the word "Evil". She thought about the last time she'd heard that word used to describe something. No, it wasn't his plan, it was what Bill described the logo on her sweater to be, and she now realized one of his weak points. She stopped and faced Bill. "Hey Billy Goat!" she shouted, "Listen to some of this!" she threw an iPod at him.
Bill recognized the music that was playing. "Wait, what is that? Is it? Oh no, its..." he saw the name of the song playing: I Love Rock n' Roll, by Joan Jett. "Noooo! I HATE Rock n' Roll! It's EVIL! STAAAAAHP!"
Dipper and Mabel watched as Bill began to light up bright from listening to the "Evil" music. Then, in a big, bright burst, he was gone, disappeared back into his own dimension. The third book lay on the floor, and Dipper picked it up.
"We did it!" cheered Mabel, and the two high-fived. They had defeated Bill once again, and even though they were unsure on whether he would get his revenge again, the books were at least in safe hands... for now.
It was now Monday evening after dinner, and Dipper and Mabel had just finished their homework. Mabel was web surfing on his computer, as she'd already spent an entire summer without any internet, but that was alright, since she had a lot more fun than being on the internet at Gravity Falls.
"Aw man, Mabel's Little friend has died!" she cried, as she hadn't logged into Net Kritterz all summer. "But at least I've got a real friend."
"Waddles?" asked Dipper.
"No, even better" said Mabel, wrapping her arms around him and giving him a hug. "You. I had such a good time having another adventure today."
"I sure did too."
Just then, Dipper and Mabel's shared computer had an incoming skype call from "MrMystery1938". Dipper rushed to answer the call, as he knew exactly who it was. When he pressed the space key, Grunkle Stan's face popped up on the screen. "Hello there kids!"
"Grunkle Stan!" Dipper and Mabel cheered simultaneously.
"Look, I finally got a new computer!" said Stan. "Lisa finally broke down after thirty years. So I sold it off and said it worked so I could buy a new one! So how are you two? You keepin' a good watch on them books?"
"Sure we did!" Dipper gave Mabel a wink. "We'll make sure nothing happens to 'em!"
Stan turned the computer camera to face Wendy. "Yo Dipper" she said, "How's it going?"
"Is Soos there too?" Mabel asked, just as Soos walked by the camera and noticed the skype call. "Hey Soos, it's us!"
"Stan trapped you two in a computer? Get them out!"
"Calm down Soos, it's just a webcam call." Stan told him.
"I can't wait to see you guys this summer!" cheered Mabel. "And I can't wait to see Waddles too!"
"Oh yeah, look who else says hello!" Soos lifted up Waddles so Mabel could see. When he saw her, he squealed in excitement.
"Hello Waddles! I miss you!"
"I am sure he can't wait to see you this summer, too" said Stan. "And we've just called you to say we miss you, and we're looking forward to seeing you this summer."
"We sure are too" Dipper told them. "And we'll make sure nothing happens to these books. Goodbye!"
"Goodbye!" said Stan, Wendy, and Soos all at the same time. And then, they disconnected.
"Well, that was nice" said Dipper. "Great to know they miss us too."
"I can't wait for summer" Mabel told him. "Hey, we've finished our homework. You wanna play another round?"
"Sure!" he said, and then they went downstairs to the dining room table to play Magick and Monsters.