Hey,
I just thought up a really nice effect:
Firstly, a sealed envelope is placed on the table/floor/held by the spectator or something, and you retrieve a book. You then proceed to riffle through the pages of a book and have a spectator stop you where they like. They then remember the page number and a word on the page. You, being the great magician you are, are able to tell them the word they selected from the page. You then ask the spectator to open the envelope and get out the contents, without you even touching the envelope since it was produced. The spectator then finds that the envelope contained the page that they stopped at, and they can search through the book and find that the tear on the page in the envelope matches exactly with the tear where the page in the book should be, but is no longer, despite them just having a look at it.
However I need some help with one aspect of it. I've scoured through my various magic books and videos, looking for something that I could incorporate into the trick, but to no avail. I'm just looking for a simple move (to do with the book), and I can't really say more without tipping the method, although I'm sure most of you have figured it out already

Anyway, if you think you could lend a hand then please PM me or post here or something, and I'll send you off a PM with the move I need. If you know of any methods or videos/books containing the method, then please let me know back by PM.
Thanks, and sorry if this doesn't make sense/is in the wrong place/shouldn't even be here, I'm really tired and don't think I'm making total sense at the moment.