As for putting annotations at the end of the book, certainly you can do it this way: if you name some giant in your book, make him the giant Goliath, and just by doing that, which is almost no trouble at all, you have a nice long annotation, because then you can write: The giant Goliath, or Goliat, was a Philistine whom the shepherd David slew with a stone in the valley of Terebint, as recounted in the Book of Kings, and you can easily find the chapter.
