Dipper Pines had been held captive in California, with his twin sister Mabel, for years. Band from Gravity Falls by their parents, the twins become dull and frankly depressed, restricted by society. But when their seventeenth birthday rolls around, they're given one wish each by their parents. Which, of course, is to return to the place they felt happiest. Gravity Falls. But when Dipper finds out someone's been waiting for him, things get a little more complicated. So complicated even his own sister can't seem to help him out of it. All the pictures in this book belong to their rightful owner, of course.