this this story begins and tales off where weirdmageddon was about to come to a climax, here is some info just for reference.
This is not going to at all include the final details or ending of the weirdmageddon or the full series.
Gravity falls is a series made by Alex Hirsch, it was an incredibly good series and I suggest you go watch it
memories
chapter 1
"your fault"
There he was, Bill. Standing there with Mabel, Ford, and Stan in his tight grip. "let's make a deal kid." he spoke sarcastically. "the code for their lives." he gestured a finger going around Mabel's throat implying that he was going to kill her. "what's it going to be?" The memory gun was in reach… if he could get the gun and use it then he could erase Bill for good, but at the cost of his whole life, all his memories, experiences, the people he loved and knew. All of it, he was ready to give it up for them though . "OKAY Bill! I'll give you the code to break the barrier, but in return you have to leave my family alone."
"hmm!" he thought for a second. "okay Pine tree, let's shake on It then." he held out his blue flaming hand in accordance for him to shake it. Dipper stuck out his hand and firmly grasped Bills, he shook it up and down twice, Bill let out a maniacal laugh before entering Dippers head. Dipper did not waste a second, he jumped to the memory gun and aimed it at himself. But at that very moment Mabel woke up and glossed her eyes at him. "huh, Dipper?" she said in a tired and monotone voice. She noticed the gun in his hand and almost immediately knew what he was doing. "Dipper no!" she shouted. "you'll lose all your memories." she screamed in a worried tone. "don't do it." she shouted once more. Dipper looked at the gun but only for a split second. He looked back at Mabel and gave a sincere and remeasuring smile. He looked at the gut one more before aiming it at his head, and pulling the trigger. Like that the blueish green beam left the gun and met his head. And it all began flooding out, all his thoughts, his memories, who he was and what he wanted to be, all his friends and family, but most importantly… Bill... he was trapped up in Dipper's head. Freaking out and rambling out incoherent words. Almost like he was speaking gibberish. Dipper sat there in the corner of his burning memories. Watching as it all turned to ash. Letting out a loud sob before he himself was reduced to ash. In the real world his body had dropped the gun and began to glow a bright yellow out of his eyes and mouth. All this was before his body hit the ground.
All he could see was darkness, nothing but miles and miles of cold, unforgiving darkness. "where am I?" he asked himself. This was not anywhere he knew. It was nothing and nowhere. "it's the nothing kid." a familiar voice said. "you've done it now." the voice spoke as it came in through the non-existent floor. It was a man dressed in all yellow, a yellow jacket, monocle, and pants. The only thing that stood out was his black elongated top-hat. "what are you?" Dipper asks the person standing before him. He let out an exhausted laugh. "are you kidding Pine tree?" he asked in an angered tone. "I'm the person who's whole life's work you just destroyed." he said with a distressed look on his face. "Bill?" asked Dipper. "the one and only." he said. "WHAT!" he yelled, "how are you still alive?" he began to question. "I'm not." he said with an enraged expression. "and neither are you." he pointed out. "what?" he said fearfully. "'what'" Bill mocked. "you did this to us kid." he said. "you erased us out of the universe, and straight back into the nothing." he said depressingly. "oh" said Dipper. He took a quick peek at all of Bills new body. "Why do you look like that Bill?" he asked. "well kid," he paused "this is my natural form." he had exclaimed. "If that's your natural form then why did you choose to look like a fancy triangle?" he asked sincerely. "its to much for me to handle." he said mysteriously. "what do you mea-" Bill interrupted. "lets get over with the pleasantries." he exclaimed angry like. "you threw us into the nothing and now you just want to chat like nothings happened" he said enraged by this point. "well newsflash kid, we will spend eternity sitting here with nothing and no one." he pointed out. "all because you wouldn't just give me what I wanted." his enraged tangent was interrupted by Dipper shushing him with his finger. "I had no choice, I wasn't just going to give you the key to destroy our dimension." he exclaimed now enraged as well "you brought this upon yourself by messing with my family and planet." he pointed to him. "take your portion of the blame and sit there in silence for the rest of eternity." he practically shouted. "fine then kid, if that's how it is then that's how it will be." He said. "but if by any chance I get out of here the first thing I'm going to do is kill your whole family.'' he said in a very serious voice. Dipper punched him in the face hard enough to make him spin in this space-like environment. "you annoying little brat." Bill said with fury as he rushed at Dipper with his fist balled up. "try me Bill." he said. When Bill had gotten in range to hit him Dipper simply moved to the side and preformed a side-step-block maneuver. "ow, you bastard." Bill exclaimed in pain while sitting on the floor. "all that training from Ford really paid off in the long run." he said with a smug look. "now I can kick your ass for all of eternity." he said in a very serious voice that almost frightened Bill. "hah." bill said in a snarky tone. "you really think you can keep this up for all of eternity?" he asked. "well I know I can Pine tree." he had said trying to put into reason his physical capabilities. Dipper started to get an eerie feeling in his head. "oof." Dipper moaned. "what's wrong kid? Feeling tired already?" Bill had stated. "no I just feel-" Dipper was interrupted by the blinding light that shot In the nothingness. "what the hell." they both said almost in unison. When the light had gone away Dipper had awoke in a small room that looked very familiar.