Gravity Falls become Monster Falls

Bill cast a spell on the town of Gravity falls. 
Suddenly everyone is a monster. They want to turn back, but they don't know how. 
And, they can't leave the town because Bills spell only affected Gravity Falls. 

What will happen?

bill
dipifica
dipper
falls
ford
gravity
grunkle
mabel
monster
soos
stanley
wendy

He is a Cervituar. A Centaur is Half man half horse, like Chiron.

Stan: *shrugs it off*
                              Me in Stan’s position: You did WHAT?!?!

This totally seems like something Mabel would say 😂👏🏻

Bambi XD But,I just read your description. I'm terrible at covers and I was hoping you would,uh,make a Bill x Ford cover...? If you ever decide to make one,just take a screenshot or something and put it in a book and tag in the chapter. I can crop it..thanks..

If anyone says that Wendy is a fückin furry, I will slap their dick off

(In this curse I place on thee your inner monster will come through in this curse shall last till the end of time unless you give the sacrifices to me.) Translation

Bill cast a spell on the town of Gravity falls. Suddenly everyone is a monster. They want to turn back, but they don't know how. And, they can't leave the town because Bills spell only affected Gravity Falls. What will happen?