Dalek Invaded Timeline

Vlad Masters had investigated Preston Northwest.

Bill Cipher's Defeat ruined him.

The idiot was a Human Collaborator for Bill Cipher.

Charlene Doofenshmirtz was the only one who would Hire Preston Northwest because nobody else wanted to pay off his debts.

The Necronomicon had been hidden and forgotten by everyone except Bill Cipher himself, it didn't really save him from the Daleks regrettably.

Bill Cipher had been killed and the Daleks Invaded Humanity afterwards.

So Vlad Masters investigated Gravity Falls instead.

What everyone remembered was the Mystery Shack and the Financial Records lead him right to Stanford Pines, the Mystery Hunter that went into hiding before Gravity Falls exploded.

Based on the information Vlad Masters discovered from the Daleks, Stanford Pines was his ticket back into the Ghost Zone.

The problem was finding Stanford Pines before the Daleks did.

All Vlad Masters found was Dipper Pines and his Twin Sister.

"I believe that Stanford Pines left Gravity Falls before it was destroyed, I want to help you find him." Vlad Masters explained.

The Pines Family accepted his help and days later he introduced them to Charlene Doofenshmirtz.

"Pacifica, you're the Maid?" Dipper and Mabel asked together.

"It's my first real job, don't laugh!" Pacifica Northwest protested.

Dipper and Mabel just smiled at her sympathetically together.

"Did you hear what happened to Gravity Falls yet?" Pacifica Northwest asked them.

"I can't believe everyone died, it's horrible!" Mabel Pines screamed.

Dipper hugs his sister as she breaks down crying.

Pacifica Northwest stands there unsure what to do with herself.

"Can I get you anything to make you feel better?" Pacifica Northwest asked nervously trying to be helpful.

"Do you have Ice Cream?" Mabel Pines asked hopefully.

Charlene Doofenshmirtz found three crying teenagers eating Ice Cream together.

"You knew somebody from Gravity Falls I take it?" Charlene Doofenshmirtz asked them knowingly.

"We visited Gravity Falls during our Summer Break last year. Everybody loved us and now they're all dead." Mabel Pines explained.

"Do you want to talk about it?" Charlene Doofenshmirtz asked sympathetically.

Vlad Masters was convinced that Stanford Pines survived, however, everyone crying over Gravity Falls being destroyed was distracting him.

"Preston Northwest, what can you tell me about this book?" Vlad Masters asked.

"The Necronomicon? How did you find it?" Preston Northwest questions him.

"Bill Cipher told me where it was hidden." Vlad Masters answers him.

"Bill Cipher wants revenge, you can't trust him!" Preston Northwest protests.

"The Daleks are more dangerous than Bill Cipher at the moment. I need information about the Necronomicon." Vlad Masters explained.

"All copies of the Necronomicon were created to help Cthulhu conquer other dimensions by Corrupting Humans into serving him. The Northwest Family made a deal with Bill Cipher to help resurrect him in exchange for protection from the Necronomicon's Influence." Preston Northwest explained.

"So you're immune to the Necronomicon's Influence?" Vlad Masters asked.

"All of Gravity Falls became immune to the Necronomicon's Influence, our families can never be corrupted by the Necronomicon and in exchange Bill Cipher keeps Cthulhu away from us." Preston Northwest explained.

"The Northwest Family asked Bill Cipher for protection from Cthulhu?" Vlad Masters asked.

"My Ancestors thought Bill Cipher would be less dangerous than Cthulhu being brought to life would be. In retrospect we caused Bill Cipher's Conquest to happen because we needed his help." Preston Northwest explained.

"You obviously got swindled and Bill Cipher used Gravity Falls to his own advantage afterwards." Vlad Masters realized very quickly.