It looks like an ordinary day for Dipper and Mabel Pines, until they stumble across a strange river. When people start changing all over town, it's up to them to find a way to escape the monsters within. (Monster Falls AU)
It looks like an ordinary day for Dipper and Mabel Pines, until they stumble across a strange river. When people start changing all over town, it's up to them to find a way to escape the monsters within. (Monster Falls AU)
After eight years, twins Dipper and Mabel Pines have finally returned to Gravity Falls to spend another summer with their Grunkle Stan.
But something isn't quite right. Dipper has been having horribl...