One day twins Dipper and Mabel Pines were wandering aimlessly through the woods, nothing better to do. They were both thinking the same thing, how much they liked being alone with one another. They were just walking along a narrow path, it wasn't really even a path, just a part of the woods that was fairly thinned out. Every once in a while they would come upon a dead end, briers and bush on all sides, and had to turn back and find another path. They soon realized they were getting lost. They were getting worried, they had been out probably close to an hour now and couldn't see anything but the tall trees and small undergrowth. The twins were still unknowingly heading away from the Mystery Shack, their temporary home for the summer, when they happened upon a small, and seemingly very old, hut type structure. It was just a small shack about the size of a bathroom, and seemed to have not been touched for many years. "Let's check it out," Dipper said. "I dunno..." Mabel felt uneasy about it. "C'mon, let's just check it out. Then we'll try to get back to the Shack," Dipper tried to convince Mabel. "Oh, alright, let's do it, quick though. I don't wanna be out here too long," Mabel said. She was quite curious herself, although Dipper started towards it before she could open her mouth again. They made their way over to it, and found the side with the entrance. It was rather small, and had a tattered sign that seemed to read "ENTER AT YOUR OWN RISK." They entered it anyway, and once they were inside they were immediately sucked into a portal.