A Gravity Falls Fanfic Soos was six years old when he wrote his first story. His cousin María had just published a book, and the whole family was talking about what an amazing accomplishment it was. María was the coolest person in the world, so when Soos heard about her book, he decided he wanted to write one too. He sat down at the table with some paper and a crayon while Abuelita made supper and wrote about a dog who made friends with a cat, a bird, and a little boy.