Underfalls: A Gravity Falls/ Undertale Crossover

Underfalls: A Gravity Falls/ Undertale Crossover

22.8K Reads 749 Votes 13 Part Story
Ally By PixaneFangurl510 Completed

"Dipper, there is one last thing to prevent Bill's reign of terror for good. You must climb to Mt. Ebbot, not far from here, and retrieve some inter-dimensional travel-block. It will prevent Bill from ever crossing into our realm, and taking over our world."

"Ok Great Uncle Ford. I'm on it-"

"Oh and Dipper?"

"Yes Great Uncle Ford?"

"Take Mabel with you. Its dangerous to climb Mt. Ebott one. Legends say that those who climb the mountain never return. Be careful Dipper,"

"I will. Thanks Great Uncle Ford."

~§~§~§~

Dipper and Mabel Pines are your average twins, spending the summer at their "Grunkle" Stan's Mystery Shack. But, as the summer progresses, Stan's twin brother, Stanford, returns. Bill, the evil inter-dimensional mastermind plans to cross over into the world of Gravity Falls, and the apocalypse of "Weirdmageddon" draws near.Then the twins are forced to Mt.Ebott, where theyll do the unthinkable...

LizzyandAnna LizzyandAnna Aug 29, 2016
So they just don't question the weird text boxes that appear.
MableMapleNKMS MableMapleNKMS Nov 23, 2016
HE'S YELLOW, REMEMBER BILL?! BILL'S YELLOW. DON'T TRUST HIM.
SkrubzKirby SkrubzKirby Aug 20, 2016
I mean they would dipper would probably be perserverance and mabel would be kindness but thats ok too.
Thegoldencheezer Thegoldencheezer Mar 15, 2016
Dipper and Mabel must be so confused... and filled with "determination"...
Chancery-OC- Chancery-OC- Oct 28, 2016
BE READY FOR
                              GOATS
                              SKELETONS 
                              FISH THINGS
                              THE DINO VERSION OF LISA SIMPSON
                              GHOSTS
                              EVIL DEMON CHILDREN
                              ANNNNNDDDDDDDD 
                              A BUNCH OF OF OTHER WEIRD STUFF!
MableMapleNKMS MableMapleNKMS Nov 23, 2016
'It's dangerous to explore by yourself'
                              PFFT, I ALMOST GOT KILLED BY A MAGIC DORITO WITH A TOP HAT, I THINK I CAN HANDLE THIS.