Author's Note:

Just an idea I had recently; don't look too deeply into it. Anyways, enjoy.

Prologue

(In an abandoned building in Gravity Falls, 12 years in the future)

Slow rumbling could be felt in the room as an aging man was furiously typing into a computer of some kind. "Talk to me: is it ready yet?" inquired a from blonde woman in her mid-twenties standing near the doorway, assault rifle in hand. "Almost: just need to make a few more adjustments," came the reply. "You realize that weapon won't do you much good against HIM, right?" stated a brunette woman of about the same age, to which the blond sighed. "Yeah, but we need every bit of effort for this to work."

"When she's right, she's right," came the voice of someone else. Sighing, the brunette girl looked over across the room. There, huddled in the corner, was a small boy of the age of 12 with blonde hair, wearing a pine-tree sweater and a blue baseball cap, holding onto what looked like a flashlight. "Just be careful, Moses," the brunette stated, "and remember…" "…to keep fighting, no matter what," he said back with a small grin.

"Just a bit more and…DONE!" came the voice of the senior citizen, "I'm not sure how stable this thing is, though: you sure it's worth the risk?" "You know full well that his uncle wouldn't have suggested this plan if it wasn't," came the reply by way of the blonde, before the sound of an explosion was heard close by. Sighing, the senior stated, "Give that monster a wedgie for me, got it?"

"Don't have to tell me twice," came the boy's reply, "Just be sure to destroy the doorway once I'm through, since it sounds like our little distraction just wore off." "We will; now go: find 12-year-old Dipper and Mabel Pines. They'll help you stop this BEFORE it happens. They have to," the blonde stated, sounding more then a little worried. "I WILL stop him," the boy declared, jumping into the portal, "I PROMISE!"

(Pacifica's room in Northwest Mansion, present time)

"Those Pine Twins drive me crazy sometimes," Pacifica declared, "Fine, they can be nice at times, but weird things follow them like the plague." Sighing, she stated, "I mean it's not like anything like what I saw the other night would happen without them around, right?" As if on cue, the portrait on the wall began to fizzle a bit, then produce a crackle of electricity, before finally a blonde boy around her age came flying through something that looked like a portal and slammed into a wall. After flopping onto his back, the boy stated, "Well, THIS complicates things a little bit."

To be continued…

Author's note:

Well, THAT'S the understatement of the year. Tune in next time to see what happens. Also, anyone of you guys think you can guess who's who in the future?