Recently I’ve started rewatching Fringe, the 2008-2013 X-files-like science fiction tv series about science terrorism, a war between alternate dimensions and strange Watcher-like beings called Observers. I bought this tie-in book, September’s Notebook, for £5 from ebay. I’ve got similar books like this called “vaults” which contain inserts and removable documents. This one pretends to be an in-universe object where one of the Observers has collected information about the characters and the cases they investigate.