You no longer remember the notebook. In fact, over the next week, all of your memories are wiped away until you are entirely a baby.
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You are now 16 years old. Your second childhood was much like your first, but you wouldn't know. All of your family had gotten younger too, to match your new age, so nothing seemed out of place.
Your mom tells you to look through some old boxes in the basement for her grandma's old tea set. You roll your eyes and head down. After the first four boxes contained little more than moth-eaten cloth and old photographs, you find a box that looks considerably newer than the others. Scrawled on the side is "Jake's Baby Things." You decide to quick look in that box. Inside, you see stuffed animals, blankets, changing mats, baby clothes, pacifiers, and... a notebook? You wonder why a notebook would be in a box of things from when you were a baby. You like its leather binding, and decide to take it, as you've always liked writing. You find the tea set in the next box, stuff the notebook in your pocket, and go upstairs.
"Here you go, Mom." You say, handing your mom the set. She thanks you and puts it on the top shelf of her new cabinet. You head up to your room, sit down at your desk, and open the notebook to the first unmarked page. You think of what to write. You decide to begin by writing down random ideas. "The sky is green" you write, and suddenly the sky outside your window matches the grass in your yard. You cross off that line, and it changes back. You realize (For the second time) that anything written in the notebook becomes true. You begin to think of what to do.