It was a normal day in Gravity Falls. Dipper was reading his journal, and Mabel was playing with Waddles. Until...

(RUMBLE!)

Dipper: Mabel, was that you?

Mabel: Nope!

Just then, a BIG crash was heard downstairs, followed by Grunkle Stan screaming endlessly.

(AHHH!)

Dipper and Mabel headed downstairs only to find Grunkle Stan torn limb from limb,blood and guts everywhere and something written in blood on the wall.

It said, bring me the one they call Professor Oakland, or you two die.

Mabel: Dipper, who is Professor Oakland, and who did this to Grunkle Stan.

Dipper: I do not know, But this is what i do know, we must solve this case.

Mabel: I am with you all the way brother.

And they where off, but they ran into Soos and Wendy along the way.

Dipper: Wendy? why are you crying?

(sobbing) Wendy: It's Grunkle Ford! something terrible happened to him!

Mabel: Did he get murdered

Soos: How did you dudes know?

Dipper: Because the same thing happened to Grunkle Stan.

Wendy: Are you guys going to find out who did this?

Dipper: Yep!

Good thing Dipper had his journal with him, because the mystery quadtruplets ran into a couple of anomalies.

For example they ran into an alien which turned out to be called a xenomorph

Mabel: EWW! what is that thing!

Dipper Acording To the journal, this is a xenomorph, an alien species which live in hives just like bees.

Soos: Watch out for its acid blood, inner jaws and bladed tail.

Later on they encoutered two dog looking creatures, called Stitch and Sparky.

Mabel: AWWW! look at this little guy!

Dipper: Careful Mabel! these two are Stitch And Sparky! One can bite your arm off and the other can shock you

Soos: Yeah, i would stay away from them if I were you dudes.

After That they saw three pocket monsters or pokemon for short called Squirtle, Ivysaur and Charizard

Mabel: COOL! i love their powers!

Dipper: It says here that these pokemon are called Squirtle, Ivysaur and Charizard.

Soos: What is pokemon short for again?

And finaly they came across this ghost ranch, with none other than Professor Oakland inside.

Oakland: Who are you! What are you doing in my house!

Dipper: Are you Professor Oakland?

Oakland: Yes i am, and i am a member of the SCP Foundation

Mabel: what's an SCP?

Oakland: They are anomalous creatures and objects I am encharge of locking up.

Soos: You mean the xenomorph, experiments and pokemon we ran into dude?

Oakland: Yes, they are an subcatagory of anomalies, called SCP-X, SCP-J and SCP-P

Just then, a firey portal opened right in front of them.

Mabel: This must be where we are supposed to take you.

Oakland: No! Anything But That!

And so they went through it and entered into a firey abyss where A Winged Humanoid Dinosaur was waiting for them.

Dipper: Who are you?

The Supreme Monstrosity: I am The Supreme Monstrosity, but you may call me The Devil

Oakland: You're the demon i dreamed about!

The Supreme Monstrosity: That is right Oakland, and you are here to be punished for allowing Bill Cipher to take control of you.

The momment he said this, he picked Oakland with his big scaly hand and threw him into the Eternal Pit Of Fire.

The Supreme Monstrosity: And as for the rest of you, everything which has been done is now undone.

And with a snap of his fingers, eveything turned back to normal, with The Grunkles still alive

Dipper: (GASP!) What a nightmare.