Chapter 1: The Call

This is the story of your favorite 12 year old twins, Dipper and Mabel Pines! Except... they're monsters. And something's happened to Mabel... it all started with that damned call...
Disclaimer: Base cover photo by RaisedbytheVillians on DeviantArt. I don't own Gravity Falls or Monster Falls
Updates every psych! Completed. This is the first book, next book will start about mid-September.

THIS BOOK WAS MY FIRST IT IS VERY OLD READ AT YOUR OWN RISK

ALSO THIS BOOK ENDS IN A CLIFFHANGER AND I HAVE NOT (AND MOST LIKELY WILL NOT) WRITE A SEQUEL TO IT

sorry